# NGK Spark Plugs: Indmar, PCM, Marine Power & Other Inboards

## NGK Spark Plugs: Indmar, PCM, Marine Power & Other Inboards

253 spark plug applications from NGK's catalogue, for the inboard and sterndrive engines we supply parts for. Each line gives the plug NGK specifies, the premium upgrade where one exists, and the electrode gap. **Plug codes shown as links go straight to that plug on our shop.**

Volvo Penta, Crusader and OMC are on the [Volvo Penta, Crusader & OMC inboards](/pages/ngk-spark-plugs-inboard-sterndrive) page.

**Check the gap before you fit.** Plugs are not always gapped correctly out of the box, and the wrong gap causes misfire and hard starting. Where a resistor plug is specified, fit a resistor plug — a non-resistor substitute can interfere with a tacho, sounder or engine electronics.

-   [Indmar](#indmar)
-   [Hardin](#hardin)
-   [Flagship](#flagship)
-   [Universal](#universal)
-   [Marine Power](#marine-power)
-   [Yamaha](#yamaha)
-   [BMW](#bmw)
-   [PCM](#pcm)
-   [U.S. Marine](#u-s-marine)
-   [Evinrude](#evinrude)
-   [Johnson](#johnson)
-   [Berkeley](#berkeley)
-   [Sea-Doo (Bombardier)](#sea-doo-bombardier)
-   [Kodiak](#kodiak)
-   [Redline](#redline)
-   [American Challenger](#american-challenger)
-   [Marine Drive Systems](#marine-drive-systems)
-   [Polaris](#polaris)
-   [Chris-Craft](#chris-craft)

### Indmar 45 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

4-CYL. GM

3.0 · 3.0L · 4-Cyl.

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

4.6L MPI NORTHSTAR

TR55

[TR55IX](/products/tr55ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.5 mm

5.7L LS1 CORVETTE

[TR4](/products/tr4-ngk-std-v-groove-resistor-spark-plug-genuine-ngk-spark-plug)

TR4IX

0.9 mm

5.7L V8

1987-1976

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

5.7L V8 EXCEPT LS1

2005-1994

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

5.7L V8 LS1

2002-1994

TR55

[TR55IX](/products/tr55ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.3 mm

5.7L V8 LS1

2005-2003

TR55

[TR55IX](/products/tr55ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.5 mm

6-CYL. GM

4.3 · 4.3L · V6 EFI

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

6.0L V8

2005-2003

TR55

[TR55IX](/products/tr55ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.5 mm

7.4L V8

2005-2003

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

8-CYL. GM BIG BLOCK

6.0 · 6.0L · V8 · 03→05

PTR5D-13

[TR5AI-13](/products/tr5ai-13-ngk-spark-plug)

1.5 mm

8-CYL. GM BIG BLOCK

7.4 · 7.4L 17.5 mm reach plugs · V8 · 03→05

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

8-CYL. GM BIG BLOCK

7.4 · 7.4L Incl. H.O. 11.2 mm reach plugs · V8 Carb, EFI · →97

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

8-CYL. GM BIG BLOCK

7.4 · 7.4L Incl. H.O. 17.5 mm reach plugs · V8 · 98→99

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

8-CYL. GM BIG BLOCK

8.1 · 8.1L Vortec · MPI · 03→05

PTR5D-13

[TR5AI-13](/products/tr5ai-13-ngk-spark-plug)

1.5 mm

8-CYL. GM BIG BLOCK

8.2 · 8.2L 17.5 mm reach plugs · V8 · 98→99

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

8-CYL. GM BIG BLOCK

8.2 · 8.2L Incl. H.O. 11.2 mm reach plugs · V8 · →97

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

8-CYL. GM BIG BLOCK

8.2 · 8.2L · V8 · 03→05

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

8-CYL. GM SMALL

5.0 · 5.0L 230, 230SP · V8

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

8.1L MPI VORTEC

2005-2003

TR55

[TR55IX](/products/tr55ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.5 mm

8.2L V8

2005-2003

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

BLOCK

5.7

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

BLOCK

5.7

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.8 mm

BLOCK

5.7

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

BLOCK

5.7

PTR5D-13

[TR5AI-13](/products/tr5ai-13-ngk-spark-plug)

1.2 mm

BLOCK

5.7

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.0 mm

BLOCK

5.7

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

[TR5AI-13](/products/tr5ai-13-ngk-spark-plug)

1.0 mm

BLOCK

5.7

[IZTR5B11](/products/iztr5b11-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.3 mm

BLOCK

5.7

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

BLOCK

5.7

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

BLOCK

6.6 · 6.6L · V8

[BR6FS](/products/br6fs-ngk-spark-plugs)

1.1 mm

CADILLAC 279 cu.inch

4.6 · 4.6L Northstar · MPI

PTR5D-13

[TR5AI-13](/products/tr5ai-13-ngk-spark-plug)

1.5 mm

FORD 302 cu.inch

5.0 · 5.0L 200 · V8 · 91→95

[BPR5FS-11](/products/bpr5fs-11-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

FORD 302 cu.inch

5.0 · 5.0L 225 · V8 · 91→97

[BPR5FS](/products/bpr5fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 351 cu.inch

5.8 · 5.8L 250 · V8 · 91→97

[BPR5FS](/products/bpr5fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 351 cu.inch

5.8 · 5.8L 285 H.O. · V8 · 91→97

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

FORD 460 cu.inch

7.5 · 7.5L · V8 · 76→84

[BPR5FS](/products/bpr5fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 5.0L V8 200

1995-1991

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

FORD 5.0L V8 225

1997-1991

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 5.8L V8

1987-1983

[AR6FS](/products/ar6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 5.8L V8 250

1997-1991

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD 7.5L V8

1984-1976

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

OLDSMOBILE 5.7L V8

1982-1976

XR4

[XR4IX](/products/xr4ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

OLDSMOBILE 6.6L V8

1982-1976

XR4

[XR4IX](/products/xr4ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

OLDSMOBILE 7.5L V8

1976-1975

XR4

[XR4IX](/products/xr4ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

### Hardin 43 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

H225IO

1986-1980

YR5

YR5IX

0.9 mm

H225J

1986-1980

YR5

YR5IX

0.9 mm

H225V

1986-1980

YR5

YR5IX

0.9 mm

H240J

1990-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H240J

1990-1969

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H240V

1990-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H240V

1990-1969

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H260IO

1986-1980

YR5

YR5IX

0.9 mm

H260J

1986-1980

YR5

YR5IX

0.9 mm

H260V

1986-1980

YR5

YR5IX

0.9 mm

H280

1986-1980

YR5

YR5IX

0.9 mm

H280J

1986-1980

YR5

YR5IX

0.9 mm

H280V

1986-1980

YR5

YR5IX

0.9 mm

H295J

1976-1960

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H295V

1976-1960

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H300J

1990-1977

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H300V

1990-1977

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H305I

1990-1979

YR5

YR5IX

0.9 mm

H320J

1990-1979

YR5

YR5IX

0.9 mm

H320TC

1990-1978

[R5673-7](/products/r5673-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.7 mm

H320V

1990-1979

YR5

YR5IX

0.9 mm

H324J

1976-1975

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H324V

1976-1975

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H325J

1976-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

H325V

1976-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

H333J

1990-1976

YR5

YR5IX

0.9 mm

H333V

1990-1976

YR5

YR5IX

0.9 mm

H345J

1976-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

H345V

1976-1969

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

H350I

1990-1979

YR5

YR5IX

0.9 mm

H405J

1990-1974

YR5

YR5IX

0.9 mm

H405TC

1990-1978

[B7HS](/products/b7hs-ngk-standard-spark-plug-genuine-ngk-spark-plug)

[BR7HIX](/products/br7hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.7 mm

H405V

1990-1974

YR5

YR5IX

0.9 mm

H454I

1990-1979

YR5

YR5IX

0.9 mm

H455J (ET)

1976

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

H455V (ET)

1976

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM225

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM260

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM280

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM333

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM400

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM405

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HM430

1990-1983

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### Flagship 35 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

—

1974-1971

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

—

1977

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

1.1 mm

—

1977

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

—

1977-1975

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

—

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

1.1 mm

155

[B6ES](/products/b6es-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

181FL

1977-1975

YR5

YR5IX

0.9 mm

280E

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

295FAS

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

300

1974-1971

[B7ES](/products/b7es-ngk-standard-spark-plug-genuine-ngk-spark-plug)

[BR7EIX](/products/br7eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

335

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

380FAS

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

400FAJ

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

400FAS

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

450FAJ

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

450FAS

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

460FAJ

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

460FAS

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

500FAJ

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

500FAJ

1981-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

500FAS

1977-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

500FAS

1981-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

675FAJ (NORMAL USE)

1981-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

675FAJ (RACING)

1977-1975

[R5673-10](/products/r5673-10-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

675FAS (NORMAL USE)

1981-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

675FAS (RACING)

1977-1975

[R5673-10](/products/r5673-10-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC400

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC450

1993-1975

[R5673-7](/products/r5673-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC500

1993-1975

[R5673-8](/products/r5673-8-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC550

1993-1975

[R5674-7](/products/r5674-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC600

1993-1975

[R5673-7](/products/r5673-7-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC650

1977-1975

[R5673-8](/products/r5673-8-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC700

1981-1975

[R5673-10](/products/r5673-10-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TC800

1977-1975

[R5673-10](/products/r5673-10-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TCX950

1981-1975

[R5673-10](/products/r5673-10-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### Universal 23 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

ARROW

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ATOMIC 1

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ATOMIC 2

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ATOMIC 3

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ATOMIC 4

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ATOMIC STEVEDORE

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

BIG KING

WR5

WR5IX

0.9 mm

BLUEFIN

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

BULLIT

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

COLT

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

DX SUPER SABRE

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

ELF

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

KNIGHT

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

LEV

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.7 mm

LEVH

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.7 mm

LITTLE KING

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.7 mm

MARLIN

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

NKEV

WR5

WR5IX

0.9 mm

SABRE

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

STRATO KING

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

SUPER SABRE

XR5

[XR5IX](/products/xr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TARPON

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

Z-DRIVE

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### Marine Power 18 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

INBOARD 8-CYL. GM

5.0 · 5.0L G, K, LV · 305, 307 cu.inch V8 215 hp · 75→86

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

SMALL BLOCK

5.7 · 5.7L FLV, GLV, K, Q Series · 350 cu.inch V8 250, 300 hp · 75→91

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

INBOARD 8-CYL. GM

7.4 · 7.4L B, BM, Premium · 454 cu.inch V8 330 hp · 75→00

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

INBOARD 8-CYL. GM

8.9 · 8.9L · 540 cu.inch V8 550 hp · 95→97

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

GM V6 4.3L

2000-1998

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

INBOARD 4-CYL.

3.0 · 3.0L 11.2 mm reach, taper seat plugs · 181 cu.inch L4 · 75→91

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

INBOARD 4-CYL.

3.0 · 3.0L 17.5 mm reach, taper seat plugs · 181 cu.inch L4 · 92→00

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

INBOARD 4-CYL.

3.0 · 3.0L 19 mm reach, gasket seat plugs · 181 cu.inch L4 · 75→78

[BR6ES](/products/br6es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

INBOARD 6-CYL. GM

4.3 · 4.3L 11.2 mm reach plugs · 262 cu.inch V6 · 95→97

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

INBOARD 6-CYL. GM

4.3 · 4.3L 17.5 mm reach plugs · 262 cu.inch V6 · 98→00

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

0.9 mm

INBOARD 8-CYL. GM

7.4 · 7.4L (L29) 17.5 mm reach plugs · 454 cu.inch V8 · 00→

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

INBOARD 8-CYL. GM

8.2 · 8.2L (Incl. Premium) · 502 cu.inch V8 · 95→97

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

SMALL BLOCK

5.0 · 5.0L · 305 cu.inch · 00→

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

0.9 mm

SMALL BLOCK

5.7 · 5.7L (Excl. Premium) · 350 cu.inch · 92→97

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

SMALL BLOCK

5.7 · 5.7L Premium 17.5 mm reach plugs · 350 cu.inch · 92→97

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[BPR6EFIX-10](/products/bpr6efix-10-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

SMALL BLOCK

5.7 · 5.7L · 350 cu.inch · 98→00

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

0.9 mm

V8 5.0L

2000

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

V8 5.7L

2000-1998

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### Yamaha 14 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

110

63→66

[B6ES](/products/b6es-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

1100cc

1.1 · 232 Limited · 08→

[CR9EB](/products/cr9eb-ngk-spark-plug)

[CR9EIX](/products/cr9eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

1100cc

1.1 · AR210, AR230, High Output · 03→08

[CR9EB](/products/cr9eb-ngk-spark-plug)

[CR9EIX](/products/cr9eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

1100cc

1.1 · Exciter 220 · 96→98

[BR8HS](/products/br8hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8HIX](/products/br8hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

1100cc

1.1 · SR210, SR230, High Output · 03→

[CR9EB](/products/cr9eb-ngk-spark-plug)

[CR9EIX](/products/cr9eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

1100cc

1.1 · SX210, SX230, High Output · 03→

[CR9EB](/products/cr9eb-ngk-spark-plug)

[CR9EIX](/products/cr9eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.8 mm

1200cc

1.2 · AR210 · 03→05

[BR8HS](/products/br8hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8HIX](/products/br8hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

1200cc

1.2 · Exciter 135, 227, 270 · 98→99

[BR8HS](/products/br8hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8HIX](/products/br8hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

1200cc

1.2 · LS2000, LX2000 · 99→03

[BR8HS](/products/br8hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8HIX](/products/br8hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

1200cc

1.2 · LS210, LX210 · 03→05

[BR8HS](/products/br8hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8HIX](/products/br8hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

1200cc

1.2 · XR1800 · 00→01

[BR8ES-11](/products/br8es-11-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8EIX](/products/br8eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

STERN DRIVE

3.0 · L4 3.0L

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

STERN DRIVE

V6

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

STERN DRIVE

V8

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

### BMW 14 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

B130

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B130S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B190

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B1901

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B190S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B220

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B2201

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

B220S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G1301

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G130S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G1901

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G190S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G2201

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

G220S

[BPR5ES](/products/bpr5es-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

### PCM 12 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

5.8L

11.2 mm reach plugs · Carb. 260 hp

[BPR6FS](/products/bpr6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.7 mm

5.7L

HO Ski 11.2 mm reach plugs · TBI 275 hp

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

5.8L

HO 17.5 mm reach plugs · MPI 310 hp

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

7.4L

Incl. HO 11.2 mm reach plugs · Carb. TBI 350 hp

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

150 cu.inch

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

200, 220, 229 cu.inch

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

230, 250, 280 cu.inch

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

302, 305 cu.inch

Dia. 14 mm plug

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

350, 351 cu.inch

Dia. 14 mm plug

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

454, 460 cu.inch

Dia. 14 mm plug

[BPR4FS-11](/products/bpr4fs-11-ngk-tapered-seat-resistor-spark-plug-genuine-ngk-spark-plug)

1.1 mm

5.7L

HO (Excl. Ski) 17.5 mm reach plugs · MPI

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

7.4L

(Excl. HO) 17.5 mm reach plugs · MPI

[BPR5EFS](/products/bpr5efs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[PTR5D-10](/products/ptr5d-10-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

### U.S. Marine 8 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

3.0L

3.0 · 181 cu.inch

[BR5ES](/products/br5es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

5.0L

5.0 · 305 cu.inch

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

5.7L

5.7 · 350 cu.inch

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

5.8L

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

5.8L

5.8 · 351 cu.inch

[BPR5FS-11](/products/bpr5fs-11-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

1.0 mm

7.4L

7.4 · 454 cu.inch

[BR6FS](/products/br6fs-ngk-spark-plugs)

0.9 mm

7.5L

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

7.5L

7.5 · 460 cu.inch

[BPR5FS-11](/products/bpr5fs-11-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

1.0 mm

### Evinrude 7 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

DU

89 cu.inch 88, 90 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

NU

1.6 · 1600cc 89, 90 hp

[BP6ES](/products/bp6es-ngk-standard-spark-plug-genuine-ngk-spark-plug)

[BPR6EIX](/products/bpr6eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

CU, SU

153 cu.inch 110, 120 hp

[BR6ES](/products/br6es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HU

225 cu.inch 150, 155 hp

[BP5S](/products/bp5s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

KU

283 cu.inch 185 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TU

14, 15, 16 · 300 cu.inch 200 hp

[BP5S](/products/bp5s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TU

17 · 283, 307 cu.inch 210 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### Johnson 7 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

DU

89 cu.inch 88, 90 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.8 mm

NU

1600cc 89, 90 hp

[BPR5E](/products/bpr5e-ngk-std-v-groove-resistor-spark-plug-genuine-ngk-spark-plug)

[BPR5EIX](/products/bpr5eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.7 mm

CU, SU

153 cu.inch 110, 120 hp

[B6ES](/products/b6es-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

HU

225 cu.inch 150, 155 hp

[BP5S](/products/bp5s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

KU

283 cu.inch 185 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TU

14, 15, 16 · 300 cu.inch 200 hp

[BP5S](/products/bp5s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

0.9 mm

TU

17 · 283, 307 cu.inch 210 hp

[B6S](/products/b6s-ngk-standard-spark-plug-genuine-ngk-spark-plug)

1.0 mm

### Berkeley 6 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

FORD

1977-1974

[AR6FS](/products/ar6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD

1990-1974

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

FORD BIG BLOCK

1990-1976

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

GM

1990-1976

YR5

YR5IX

0.9 mm

GM BIG BLOCK

1990-1976

YR5

YR5IX

0.9 mm

OLDSMOBILE

1976-1968

XR4

[XR4IX](/products/xr4ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

### Sea-Doo (Bombardier) 5 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

ROTAX ENGINES

0.7 · Explorer

[BR8ES](/products/br8es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8EIX](/products/br8eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

ROTAX ENGINES

0.7 · Speedster

[BR8ES](/products/br8es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8EIX](/products/br8eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.5 mm

ROTAX ENGINES

0.7 · Sportster

[BR8ES](/products/br8es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8EIX](/products/br8eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

ROTAX ENGINES

0.8 · Challenger

[BR8ES](/products/br8es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[BR8EIX](/products/br8eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

SPORTSTER LE DI

2006

[ZFR4F-11](/products/zfr4f-11-ngk-spark-plug)

0.9 mm

### Kodiak 4 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

3.0L L4 140 HP

2000-1999

UR4

UR4IX

1.1 mm

4.3L V6 220 HP

2000-1999

[BR6FS](/products/br6fs-ngk-spark-plugs)

BR6FIX

1.1 mm

5.7L V8 310 HP

2000-1999

TR5

[TR5IX](/products/tr5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

7.4L V8 350 HP

2000-1999

[BR6FS](/products/br6fs-ngk-spark-plugs)

BR6FIX

1.1 mm

### Redline 4 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

5.0L

[BPR6FS](/products/bpr6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[UR6IX](/products/ur6ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

5.8L

[BPR6FS](/products/bpr6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[UR6IX](/products/ur6ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

5.8L HO

[BPR6EFS](/products/bpr6efs-ngk-spark-plug)

[TR6IX](/products/tr6ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.0 mm

7.5L

[BPR6FS](/products/bpr6fs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)

[UR6IX](/products/ur6ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.9 mm

### American Challenger 3 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

EAGLE 400

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.5 mm

EAGLE 600

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.5 mm

EAGLE 800

UR5

[UR5IX](/products/ur5ix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.5 mm

### Marine Drive Systems 2 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

110

[BP7HS](/products/bp7hs-ngk-standard-spark-plug-genuine-ngk-spark-plug)

[BPR7HIX](/products/bpr7hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

85

[BP7HS](/products/bp7hs-ngk-standard-spark-plug-genuine-ngk-spark-plug)

[BPR7HIX](/products/bpr7hix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

0.6 mm

### Polaris 2 applications

Model

Engine / details

NGK plug

Premium upgrade

Gap

OPTIMAX 3.0L 250 HP

3.0 · EX2100, LE2100 - Jet Drive · 04→

[PZFR5F-11](/products/pzfr5f-11-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

[ZFR5FIX-11](/products/zfr5fix-11-ngk-iridium-spark-plug-genuine-ngk-spark-plug)

1.1 mm

EX2100/LE2100 - JET DRIVE

2004

[PZFR5F-11](/products/pzfr5f-11-ngk-platinum-spark-plug-genuine-ngk-spark-plug)

1.1 mm

### Chris-Craft 1 application

Model

Engine / details

NGK plug

Premium upgrade

Gap

All models

NGK lists Chris-Craft under Volvo Penta

[See the Volvo Penta table](/pages/ngk-spark-plugs-inboard-sterndrive#volvo-penta)

### Reading the plug codes

An NGK code describes the plug's construction. The digit in the middle is the heat rating — a **higher number is a colder plug**, which is the opposite of most other brands. An **R** after the first letters means a resistor plug. Codes ending **IX** are the Iridium IX range and **G** or **GP** the platinum ranges, both direct upgrades with a finer centre electrode. A **Y-** prefix is a diesel glow plug, not a spark plug, and has no gap. Where NGK specifies the solid-terminal build of a plug we show the base code, which is the one we stock — tell us if your leads need the solid-terminal version.

Do not substitute a hotter or colder plug to cure a running problem. A plug reading the wrong colour is telling you about the fuel, ignition or oil — changing heat range hides it rather than fixing it.

### Other engines

-   [Volvo Penta, Crusader & OMC Inboards](/pages/ngk-spark-plugs-inboard-sterndrive)
-   [MerCruiser & Marine Conversions](/pages/ngk-spark-plugs-mercruiser-inboard)
-   [Mercury Outboards](/pages/ngk-spark-plugs-mercury-outboards)
-   [Mariner & Force Outboards](/pages/ngk-spark-plugs-mariner-force-outboards)
-   [Yamaha Outboards](/pages/ngk-spark-plugs-yamaha-outboards)
-   [Suzuki Outboards](/pages/ngk-spark-plugs-suzuki-outboards)
-   [Johnson Outboards](/pages/ngk-spark-plugs-johnson-outboards)
-   [Evinrude & OMC Outboards](/pages/ngk-spark-plugs-evinrude-omc-outboards)
-   [Tohatsu & Nissan Outboards](/pages/ngk-spark-plugs-tohatsu-nissan-outboards)
-   [Honda, Volvo Penta & Other Outboards](/pages/ngk-spark-plugs-honda-volvo-penta-outboards)
-   [PWC & Jet Ski](/pages/ngk-spark-plugs-pwc-jet-ski)

### Not sure which plug you need?

Model families ran across several specifications and the year or serial usually decides which line applies. Ring [0412 532 984](tel:+61412532984) with your engine and serial number and we will confirm the plug, the gap and how many you need. Our other workshop charts are on the [reference charts page](/pages/resources).

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/pages/ngk-spark-plugs-inboard-sterndrive-other)