NGK Spark Plugs: Volvo Penta, Crusader & OMC Inboards

NGK Spark Plugs: Volvo Penta, Crusader & OMC Inboards

304 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.

Nineteen further inboard makes — Indmar, PCM, Marine Power, Hardin, Flagship, Universal, BMW, Berkeley, Kodiak and others — are on the other inboard brands 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.

Volvo Penta 148 applications

Model Engine / details NGK plug Premium upgrade Gap
145A, B BP7ES BPR7EIX 0.9 mm
5.7L GXI TR55 TR55IX 1.5 mm
5.8L FL 4 BBL UR4 UR4IX 0.9 mm
5.8L FSI EFI HO BPR6EFS TR6IX 0.9 mm
7.4L GI EFI BPR6FS UR6IX 1.1 mm
7.4L GL 4 BBL BR6FS BR6FIX 1.1 mm
7.4L GSI EFI BR6FS BR6FIX 1.1 mm
8.1L GI/GSI TR4 TR4IX 1.5 mm
8.1L GXI TR55 TR55IX 1.5 mm
8.2L GSI EFI BR6FS BR6FIX 1.1 mm
AQ105A, 110, 115A, 120 BP7HS BPR7HIX 0.6 mm
AQ120 BPR6EY BPR6EIX 0.9 mm
AQ125 A,B, 145 BPR6EY BPR6EIX 0.9 mm
AQ130, A, B, C, D BP7HS BPR7HIX 0.6 mm
AQ131, A, B, C, D BP7ES BPR7EIX 0.9 mm
AQ140A BP7ES BPR7EIX 0.9 mm
AQ150, A, B XR5 XR5IX 0.9 mm
AQ151A, B, C BP7ES BPR7EIX 0.6 mm
AQ165A BP7HS BPR7HIX 0.6 mm
AQ170, A, B, C BP7HS BPR7HIX 0.6 mm
AQ171A, C BPR6EY BPR6EIX 0.9 mm
AQ175, 175A YR5 YR5IX 0.9 mm
AQ180 XR5 XR5IX 0.6 mm
AQ190 YR5 YR5IX 0.9 mm
AQ190A AR6FS 0.6 mm
AQ200, A, B, C, D, F UR5 UR5IX 0.6 mm
AQ205A YR5 YR5IX 0.9 mm
AQ210A UR6 UR6IX 0.6 mm
AQ210A B6S 0.6 mm
AQ211/DP YR5 YR5IX 0.9 mm
AQ211A YR5 YR5IX 0.9 mm
AQ225, A, B, C, D UR6 UR6IX 0.6 mm
AQ225E, F YR5 YR5IX 0.9 mm
AQ230A BPR6ES BPR6EIX 0.9 mm
AQ231/DP YR5 YR5IX 0.9 mm
AQ231A, B YR5 YR5IX 0.9 mm
AQ240A UR6 UR6IX 0.6 mm
AQ255B UR6 UR6IX 0.6 mm
AQ260, A, B BR6FS BR6FIX 0.6 mm
AQ271/DP YR5 YR5IX 0.9 mm
AQ271A, B, C, D BR6FS BR6FIX 0.6 mm
AQ280A UR6 UR6IX 0.6 mm
AQ290A BR6FS BR6FIX 0.6 mm
AQ290B BR6FS BR6FIX 0.6 mm
AQ311A BR6FS BR6FIX 0.6 mm
AQ311B BR6FS BR6FIX 0.6 mm
AQ430 BR6FS BR6FIX 0.6 mm
AQ500A BR6FS BR6FIX 0.9 mm
AQ501A BR6FS BR6FIX 0.9 mm
AQ531 BR6FS BR6FIX 0.6 mm
AQ570A BR6FS BR6FIX 0.9 mm
AQ571A BR6FS BR6FIX 0.9 mm
AQ572 BR6FS BR6FIX 0.9 mm
AQ60F B5HS 0.9 mm
AQ740A BR6FS BR6FIX 0.9 mm
AQ80 B6S 0.6 mm
AQ90 B6HS BR6HIX 0.6 mm
AQ95, 95A, 100 BP6HS BPR6HIX 0.6 mm
B16A XR5 XR5IX 0.6 mm
B16C XR5 XR5IX 0.6 mm
B18A B6HS BR6HIX 0.6 mm
BB100 B6HS BR6HIX 0.6 mm
BB100A B6HS BR6HIX 0.6 mm
BB115A BP7HS BPR7HIX 0.6 mm
BB115B BP7HS BPR7HIX 0.6 mm
BB115C BP7HS BPR7HIX 0.6 mm
BB140 BPR6EY BPR6EIX 0.9 mm
BB140A BP8ES BPR8EIX 0.6 mm
BB145 BPR6EY BPR6EIX 0.9 mm
BB145C BP8ES BPR8EIX 0.6 mm
BB165A BP7HS BPR7HIX 0.6 mm
BB170A BP7HS BPR7HIX 0.6 mm
BB170B BP7HS BPR7HIX 0.6 mm
BB225 BR6FS BR6FIX 0.9 mm
BB25 B6S 0.6 mm
BB260 BR6FS BR6FIX 0.9 mm
BB30B B6HS BR6HIX 0.6 mm
BB30F B5HS 0.9 mm
BB70 B6S 0.6 mm
BB70 B8S 0.6 mm
C10 AB-6 0.6 mm
C23 AB-6 0.6 mm
C5 AB-6 0.6 mm
DPX-5.7L DPX 375 TR55 TR55IX 1.5 mm
DPX-7.4L DPX 385 GSI EFI BR6FS BR6FIX 1.1 mm
DPX-8.1L DPX 420 TR55 TR55IX 1.5 mm
DPX-8.2L DPX 415 GSI EFI BR6FS BR6FIX 1.1 mm
DUOPROP - 4.3L GI EFI BPR6FS UR6IX 1.1 mm
DUOPROP - 4.3L GI EFI BPR6EFS TR6IX 1.1 mm
DUOPROP - 4.3L GL 2 BBL BPR6FS UR6IX 1.1 mm
DUOPROP - 4.3L GL 2 BBL BPR6EFS TR6IX 1.1 mm
DUOPROP - 4.3L GS 4 BBL BPR6FS UR6IX 1.1 mm
DUOPROP - 4.3L GS 4 BBL BPR6EFS TR6IX 1.1 mm
DUOPROP - 5.0L FI EFI TR5 TR5IX 0.9 mm
DUOPROP - 5.0L FL 2 BBL UR4 UR4IX 0.9 mm
DUOPROP - 5.0L GI GEN 1+ BPR6EFS TR6IX 1.1 mm
DUOPROP - 5.0L GL GEN 1+ BPR6EFS TR6IX 1.1 mm
DUOPROP - 5.7L GI EFI BPR6FS UR6IX 1.1 mm
DUOPROP - 5.7L GL 2 BBL BR6FS BR6FIX 1.1 mm
DUOPROP - 5.7L GLI EFI BPR6FS UR6IX 1.1 mm
DUOPROP - 5.7L GS 4 BBL BR6FS BR6FIX 1.1 mm
DUOPROP - 5.7L GS GEN 1+ BPR6EFS TR6IX 1.1 mm
DUOPROP - 5.7L GSI GEN 1+ BPR6EFS TR6IX 1.1 mm
DUOPROP - 5.7L GXI TR55 TR55IX 1.5 mm
DUOPROP - 5.8L FL 4 BBL UR4 UR4IX 0.9 mm
DUOPROP - 5.8L FSI EFI HO BPR6EFS TR6IX 0.9 mm
DUOPROP - 7.4L GI EFI BPR6FS UR6IX 1.1 mm
DUOPROP - 7.4L GI L29 BPR6EFS TR6IX 0.9 mm
DUOPROP - 7.4L GL 4 BBL BR6FS BR6FIX 1.1 mm
DUOPROP - 7.4L GSI EFI BR6FS BR6FIX 1.1 mm
DUOPROP - 8.2L GSI EFI BR6FS BR6FIX 1.1 mm
MB10 BP5HS 0.6 mm
MB10A BP5HS 0.6 mm
MB18F B5HS 0.9 mm
MB20A BP6HS BPR6HIX 0.6 mm
MB20B BP6HS BPR6HIX 0.6 mm
MB36A B6S 0.6 mm
MB36B B6S 0.6 mm
OCEAN SERIES - 4.3L OSI-XPD TR5 TR5IX 0.9 mm
OCEAN SERIES - 5.0L OSI-XPD TR5 TR5IX 0.9 mm
OCEAN SERIES - 5.7L OSI-XPD TR5 TR5IX 0.9 mm
OCEAN SERIES - 5.7L OSXI-XPD TR5 TR5IX 0.9 mm
PJX WATERJET - 4.3L GI EFI BPR6EFS TR6IX 1.1 mm
PJX WATERJET - 4.3L GS 4 BBL BPR6EFS TR6IX 1.1 mm
PZ-200 I/O BR6FS BR6FIX 0.9 mm
SAIL DRIVE - MB10A/100S BP5HS 0.6 mm
SAIL DRIVE - MB2/50S D6HA 0.6 mm
SXCOBRA - 3.0L GS 2 BBL BPR6EFS TR6IX 1.1 mm
SXCOBRA - 4.3L GI EFI BPR6FS UR6IX 1.1 mm
SXCOBRA - 4.3L GI EFI BPR6EFS TR6IX 1.1 mm
SXCOBRA - 4.3L GL 2 BBL BPR6EFS TR6IX 1.1 mm
SXCOBRA - 4.3L GS 4 BBL BPR6EFS TR6IX 1.1 mm
SXCOBRA - 5.0L FI EFI TR5 TR5IX 0.9 mm
SXCOBRA - 5.0L FL 2 BBL UR4 UR4IX 0.9 mm
SXCOBRA - 5.0L GI GEN 1+ BPR6EFS TR6IX 1.1 mm
SXCOBRA - 5.0L GL GEN 1+ BPR6EFS TR6IX 1.1 mm
SXCOBRA - 5.7L GI EFI BPR6FS UR6IX 1.1 mm
SXCOBRA - 5.7L GL 2 BBL BR6FS BR6FIX 1.1 mm
SXCOBRA - 5.7L GLI EFI BPR6FS UR6IX 1.1 mm
SXCOBRA - 5.7L GS 4 BBL BR6FS BR6FIX 1.1 mm
SXCOBRA - 5.7L GS GEN 1+ BPR6EFS TR6IX 1.1 mm
SXCOBRA - 5.7L GSI GEN 1+ BPR6EFS TR6IX 1.1 mm
SXCOBRA - 5.7L GXI TR55 TR55IX 1.5 mm
SXCOBRA - 5.8L FL 4 BBL UR4 UR4IX 0.9 mm
SXCOBRA - 5.8L FSI EFI HO BPR6EFS TR6IX 0.9 mm
SXCOBRA - 7.4L GI EFI BPR6FS UR6IX 1.1 mm
SXCOBRA - 7.4L GI L29 BPR6EFS TR6IX 0.9 mm
SXCOBRA - 7.4L GL 4 BBL BR6FS BR6FIX 1.1 mm

Crusader 63 applications

Model Engine / details NGK plug Premium upgrade Gap
GM ENGINES 5.7 · 5.7L MP · V8 220 hp · 05→ PTR5D-13 TR5AI-13 1.5 mm
GM ENGINES 5.0 · 5.0L MP · V8 275 hp · 05→ PTR5D-13 TR5AI-13 1.5 mm
GM ENGINES 5.7 · 5.7L Carb. · V8 300 hp PTR5D-13 TR5AI-13 1.5 mm
GM ENGINES 6.0 · 6.0L MP · V8 375 hp PTR5D-13 TR5AI-13 1.5 mm
GM ENGINES 8.1 · 8.1L MP · V8 385 hp PTR5D-13 TR5AI-13 1.5 mm
GM ENGINES 8.1 · 8.1L MP (HO) · V8 425 hp PTR5D-13 TR5AI-13 1.5 mm
— 1975-1974 AR6FS 0.8 mm
185 1980-1971 R5674-7 0.9 mm
200 cu.inch 79→79 BPR6FS 0.9 mm
210 1980-1971 R5674-7 0.9 mm
229 cu.inch 165 · 79→80 BPR6FS 0.9 mm
229 cu.inch CH185 · 81→84 BPR6FS 0.9 mm
255 1975-1974 AR6FS 0.8 mm
262 cu.inch 85→98 BPR6FS 0.9 mm
292 cu.inch 185 · 71→80 BP7FS 0.9 mm
305 cu.inch 190, 220 · 76→96 BPR6FS 0.9 mm
307 cu.inch 210 · 71→80 BP7FS 0.9 mm
350 cu.inch 270 · 71→98 BPR6FS 0.9 mm
427 1980-1968 R5674-7 0.9 mm
427 cu.inch 427 · 68→80 BP7FS 0.9 mm
454 cu.inch 350 · 72→80 BPR6FS 0.9 mm
454 cu.inch 454 · 81→98 BPR6FS 0.9 mm
460 cu.inch 350 · 74→75 BPR6FS 0.9 mm
502 cu.inch 502 · 89→98 BPR6FS 0.9 mm
BOAT BUILDER 170J, 185 9.5 mm reach plugs B6S 0.6 mm
BOAT BUILDER 200J, 210, 230, 230J B6S 0.6 mm
BOAT BUILDER CS100, CS150, CS165 B6ES 0.8 mm
BOAT BUILDER CS180, CS220, CS250 B6S 0.8 mm
BOAT BUILDER CS280, CS320 19 mm reach plugs B6ES 0.8 mm
CHAMPION 305 cu.inch BPR6FS 0.9 mm
CHAMPION 454 cu.inch BPR6FS 0.9 mm
CHAMPION Incl. HT · 350 cu.inch BPR6FS 0.9 mm
CHARGER CS185, CS220, CS250 B6S 0.6 mm
CHARGER CS280, CS320 19 mm reach plugs B6ES 0.9 mm
CLASSIC 5.7 · 5.7L Plus EFI, MPI BPR5EFS PTR5D-10 1.1 mm
CLASSIC 7.4 · 7.4L HO MPI 11.2 mm reach plugs BR6FS 1.1 mm
CLASSIC 7.4 · 7.4L MPI (Excl. HO) BPR5EFS PTR5D-10 1.1 mm
CLASSIC 8.2 · 8.2L MPI BR6FS 1.1 mm
CLASSIC-5.7L PLUS EFI TR5 TR5IX 1.1 mm
CLASSIC-5.7L PLUS MPI TR5 TR5IX 1.1 mm
CLASSIC-7.4L MPI TR5 TR5IX 1.1 mm
GM V8-5.0L MP 2005 TR55 TR55IX 1.5 mm
GM V8-5.7L CARB TR55 TR55IX 1.5 mm
GM V8-5.7L MP 2005 TR55 TR55IX 1.5 mm
GM V8-6.0L MP TR55 TR55IX 1.5 mm
GM V8-8.1L MP TR55 TR55IX 1.5 mm
GM V8-8.1L MP (HO) TR55 TR55IX 1.5 mm
MARK Mark 140, 170, 200, 225 B6S 0.6 mm
MARK Mark 240 B6ES 0.8 mm
MARK Mark 275 B8S 0.8 mm
MARK Mark 280 B6ES 0.8 mm
MARK Mark 300, 325 B8S 0.8 mm
PLATINUM 5.7 · 5.7L Plus MPI BPR5EFS PTR5D-10 1.1 mm
PLATINUM 7.4 · 7.4L HO MPI 11.2 mm reach plugs BR6FS 1.1 mm
PLATINUM 7.4 · 7.4L MPI (Excl. HO) BPR5EFS PTR5D-10 1.1 mm
PLATINUM 8.2 · 8.2L MPI BR6FS 1.1 mm
PLATINUM-5.7L PLUS MPI TR5 TR5IX 1.1 mm
PLATINUM-7.4L MPI TR5 TR5IX 1.1 mm
XL/XLI 262 cu.inch BPR6FS 0.9 mm
XL/XLI 305 cu.inch BPR6FS 0.9 mm
XL/XLI 350 cu.inch BPR6FS 0.9 mm
XL/XLI 502 cu.inch BPR6FS 0.9 mm
XL/XLI Incl. HO · 454 cu.inch BPR6FS 0.9 mm

OMC 93 applications

Model Engine / details NGK plug Premium upgrade Gap
— 1974 AR6FS 0.8 mm
— 1974-1973 B6ES 0.9 mm
— 1985-1973 UR5 UR5IX 0.9 mm
2.3L COBRA 1990-1987 TR5 TR5IX 0.9 mm
2.5L 1986-1982 BR6FS BR6FIX 0.9 mm
3.0L 1989-1982 BR6FS BR6FIX 0.9 mm
3.0L COBRA 1992-1987 UR4 UR4IX 1.1 mm
3.0L COBRA 1998-1993 TR5 TR5IX 1.1 mm
3.0L COBRA HO 1998-1990 TR5 TR5IX 1.1 mm
3.8L 1985-1982 YR5 YR5IX 0.9 mm
4.3L 1993-1991 BR6FS BR6FIX 0.9 mm
4.3L 1996 UR4 UR4IX 0.9 mm
4.3L 1996 TR4 TR4IX 0.9 mm
4.3L 1998-1997 TR4 TR4IX 0.9 mm
4.3L COBRA 1995-1986 UR4 UR4IX 0.9 mm
4.3L COBRA HO 1991-1990 UR4 UR4IX 0.9 mm
4.3L COBRA HO 1995-1993 UR4 UR4IX 1.1 mm
4.3L STINGER 1986-1978 UR4 UR4IX 0.8 mm
480 B8S 0.8 mm
5.0L 1985-1982 YR5 YR5IX 0.9 mm
5.0L 1998 TR4 TR4IX 0.9 mm
5.0L COBRA 1996 TR4 TR4IX 0.9 mm
5.0L COBRA 1996-1986 UR4 UR4IX 0.9 mm
5.0L COBRA EFI 1995-1993 TR5 TR5IX 1.1 mm
5.0L COBRA HO 1995-1989 UR4 UR4IX 0.9 mm
5.7L 1982 BR6FS BR6FIX 0.9 mm
5.7L 1983 YR5 YR5IX 0.9 mm
5.7L 1985-1984 BR6FS BR6FIX 0.9 mm
5.7L 1997 TR4 TR4IX 0.9 mm
5.7L 1997 UR4 UR4IX 0.9 mm
5.7L 1998 TR4 TR4IX 0.9 mm
5.7L COBRA 1992-1986 UR4 UR4IX 0.9 mm
5.7L COBRA 1996 UR4 UR4IX 0.9 mm
5.7L K 1995-1993 UR4 UR4IX 1.1 mm
5.7L KING COBRA 1992-1986 UR4 UR4IX 0.9 mm
5.8L COBRA 1996-1989 UR4 UR4IX 0.9 mm
5.8L COBRA EFI 1996-1992 TR5 TR5IX 1.1 mm
5.8L KING COBRA EFI HO 1995-1993 TR5 TR5IX 1.1 mm
7.4L 1996 UR4 UR4IX 0.9 mm
7.4L 1996 BPR6EFS TR6IX 1.1 mm
7.4L 1997 BPR6EFS TR6IX 1.1 mm
7.4L 1998 UR4 UR4IX 0.9 mm
7.4L COBRA 1995-1990 UR4 UR4IX 1.1 mm
7.4L COBRA HO 1993-1991 UR4 UR4IX 1.1 mm
7.4L KING COBRA 1995 UR4 UR4IX 1.1 mm
7.4L KING COBRA EFI 1995 UR4 UR4IX 1.1 mm
7.5L COBRA 1990-1986 UR4 UR4IX 0.9 mm
8.2L KING COBRA 1998-1992 UR4 UR4IX 1.1 mm
AJ XR5 XR5IX 0.9 mm
AJ UR5 UR5IX 0.9 mm
ALL MODELS 1982-1974 UR5 UR5IX 0.9 mm
AT XR5 XR5IX 0.9 mm
AT UR5 UR5IX 0.9 mm
CU B6ES 0.9 mm
DU B8S 0.8 mm
GU B6ES 0.9 mm
HU XR5 XR5IX 0.9 mm
JET DRIVE-TURBOJET 115 BZ7HS-10 0.8 mm
JET DRIVE-TURBOJET 90 BZ7HS-10 0.8 mm
JU BR6FS BR6FIX 0.9 mm
KU B6S 0.9 mm
LU B6ES 0.9 mm
NU BPR6EY BPR6EIX 0.6 mm
SAIL DRIVE-15S10G 1984-1977 BPR6HS BPR6HIX 1.1 mm
SAIL DRIVE-15S10S 1984-1977 BPR6HS BPR6HIX 1.1 mm
SAIL DRIVE-15S11C 1984-1977 BPR6HS BPR6HIX 1.1 mm
SAIL DRIVE-15S13A 1984-1977 BPR6HS BPR6HIX 1.1 mm
SAIL DRIVE-15S14M 1984-1977 BPR6HS BPR6HIX 1.1 mm
SEA DRIVE-1.6L 115-SD 1991-1985 BZ7HS-10 0.8 mm
SEA DRIVE-1.8L 140-SD 1991-1985 BZ7HS-10 0.8 mm
SEA DRIVE-2.0L 140-SD 1991-1985 BZ7HS-10 0.8 mm
SEA DRIVE-2.5L 1984-1981 BUHXW-1
SEA DRIVE-2.6L 190-SD 1988-1985 BUHXW-1
SEA DRIVE-2.7L 225-SD 1987 BZ7HS-10 0.8 mm
SEA DRIVE-3.0L 225-SD 1991-1985 BZ7HS-10 0.8 mm
SEA DRIVE-3.6L 275-SD 1981-1987 BZ7HS-10 0.8 mm
SEA DRIVE-4.0L 300-SD 1991-1985 BZ7HS-10 0.8 mm
STINGER 1986-1978 UR4 UR4IX 0.9 mm
SU B6ES 0.9 mm
TJ XR5 XR5IX 0.9 mm
TJ UR5 UR5IX 0.9 mm
TT XR5 XR5IX 0.9 mm
TT UR5 UR5IX 0.9 mm
TU-14 XR5 XR5IX 0.9 mm
TU-15 XR5 XR5IX 0.9 mm
TU-16 XR5 XR5IX 0.9 mm
TU-17 B6S 0.9 mm
TU-20 BR6FS BR6FIX 0.9 mm
TU-21 BR6FS BR6FIX 0.9 mm
VU B6ES 0.9 mm
WU BR6FS BR6FIX 0.9 mm
XU-20C BR6FS BR6FIX 0.9 mm
XU20S B6S 0.9 mm

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.

Volvo Penta owners: this table is NGK's own catalogue data and covers the petrol AQ, DUOPROP, SX/Cobra and Ocean Series ranges. As the authorised Volvo Penta dealer for South Australia we have the factory parts data as well — ring us with your engine and serial and we will confirm against Volvo's own listing.

Other engines

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 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.