• R5674-7 NGK racing spark plug
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R5674-7 NGK Standard Racing Spark Plug | Genuine NGK Spark Plug

R5674-7 NGK Standard Racing Spark Plug | Genuine NGK Spark Plug

$19.00 AUD
$19.00 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

NGK Standard Racing Spark Plug – Part Number: R5674-7

NGK racing spark plugs are built for sustained high-RPM, high-temperature competition use, with precious-metal electrodes and cold heat ranges chosen for heavily loaded engines. Racing plugs are application-specific – heat range selection is critical, so confirm the specification for your engine before fitting.

⚙️ Key Features

  • Competition-grade construction for sustained high RPM and cylinder temperatures
  • Cold heat range for heavily loaded engines
  • Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
  • Triple seals prevent leakage

📏 Specifications

  • NGK stock number: 5034
  • Thread: Racing Spark Plugs
  • Reach: .460"
  • Hex: 16 mm (5/8 in)
  • Seat: Tapered
  • Terminal: Solid
  • Type: V-Power Projected Non-Resistor

🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment. The chart shows a 1.0 mm gap for these engines, but check it against your engine's manual before fitting.

  • Crusader 185 (292 CID, 1980-1971) – Inboard Engine
  • Crusader 210 (307 CID, 1980-1971) – Inboard Engine
  • Crusader 427 (427 CID, 1980-1968) – Inboard Engine
  • Flagship (300 CID, HEAVY SERVICE, 1977) – Inboard Engine
  • Flagship (305 CID, HEAVY SERVICE, 1993-1975) – Inboard Engine
  • Flagship (350 CID, HEAVY SERVICE, 1993-1975) – Inboard Engine
  • Flagship (454 CID, HEAVY SERVICE, 1993-1975) – Inboard Engine
  • Flagship 335 (350 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship 280E (280 CID, 1977-1975) – Inboard Engine
  • Flagship 295FAS (350 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship 380FAS (350 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship 400FAJ (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 400FAS (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 450FAJ (454 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship 450FAS (454 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship 460FAJ (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 460FAS (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 500FAJ (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 500FAJ (490 CID, HI PERFORMANCE, 1981-1975) – Inboard Engine
  • Flagship 500FAS (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine
  • Flagship 500FAS (490 CID, HI PERFORMANCE, 1981-1975) – Inboard Engine
  • Flagship 675FAJ (NORMAL USE) (466 CID, HI PERFORMANCE, 1981-1975) – Inboard Engine
  • Flagship 675FAS (NORMAL USE) (466 CID, HI PERFORMANCE, 1981-1975) – Inboard Engine
  • Flagship TC400 (350 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine
  • Flagship TC550 (454 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine

🔄 Supersession & Cross Reference

NGK's cross-reference tables list this plug against these part numbers.

  • Autolite: 12, AR12, AR13
  • Accel: 274, 574
  • ACDelco: 40TS
  • Champion: BL7Y
  • Motorcraft: AF12

📦 Condition

  • Brand new genuine product
  • Supplied in original packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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