R0409B-8 NGK Racing Spark Plug | Genuine NGK Spark Plug
R0409B-8 NGK Racing Spark Plug | Genuine NGK Spark Plug
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
NGK Racing Spark Plug – Part Number: R0409B-8
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: 7791
- Thread: 10 mm
- Reach: 19 mm (3/4 in)
- Hex: 16 mm (5/8 in)
- Seat: Gasket
- Terminal: Threaded stud
- Type: Fine Wire Resistor, Partial Thread
🚘 Application
Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment. The chart shows a 0.5 mm gap for these engines, but check it against your engine's manual before fitting.
- Honda CRF250R (250, 2009-2005) – Motorcycle
📦 Condition
- Brand new genuine product
- Supplied in original packaging
Shipping & Delivery
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
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?
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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