Ngk R6918b8 Racing Spark Plug
Ngk R6918b8 Racing Spark Plug
Available in stock (12)
About this product
About this product
Maximize your engine's performance with the NGK R6918B8 Racing Spark Plug. Engineered for high-performance applications, this spark plug delivers consistent ignition and superior durability. The advanced design ensures optimal combustion, leading to improved power and efficiency, making it an ideal choice for racing and demanding conditions.
Description
The NGK R6918B8 spark plug is designed with a focus on reliability and performance. Featuring trivalent metal plating, it offers exceptional anti-corrosion and anti-seizing properties, ensuring long-lasting performance even in harsh environments. The pure alumina silicate ceramic insulator provides superior strength and enhanced heat transfer, preventing overheating and maintaining consistent spark. Triple seals prevent leakage, ensuring optimal combustion chamber pressure. The corrugated ribs are engineered to prevent flashover, ensuring reliable ignition under high voltage conditions. A copper core efficiently removes heat, further enhancing the plug's durability and performance. This resistor-type spark plug with a fine wire platinum electrode guarantees a powerful and precise spark, optimizing engine output. Designed for easy installation with a 13/16" hex size and a solid terminal for secure connections.
Features & highlights
- Trivalent metal plating provides superior anti-corrosion and anti-seizing.
- Pure alumina silicate ceramic insulator enhances strength and heat transfer.
- Triple seals ensure maximum leakage protection and maintain combustion pressure.
- Corrugated ribs prevent flashover for reliable ignition.
- Copper core efficiently removes heat, improving durability.
- Fine wire platinum electrode ensures a powerful and consistent spark.
Technical specifications
- Brand: NGK Spark Plugs
- MPN: R6918B8
- Center Electrode Type: Fine Wire
- Electrode Tip Material: Platinum
- Electrical Resistance: 5k Ohms
- Ground Electrode Configuration: Single
- Ground Electrode Shape: Standard
- Heat Range: 8
- Hex Size: 20.6 mm (13/16")
- Spark Gap: 0.6 mm
- Terminal Configuration: Solid Terminal
- Thread Reach: 19.1 mm (3/4")
- Thread Size: 14 mm
- Type: Resistor
- Center Electrode Projection: Non-Projected
Important to know
Ensure this spark plug is compatible with your engine specifications before installation. Always consult your vehicle's service manual for proper installation procedures and torque settings.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
NGK SPARK PLUGS
4492
Spark Plug
14 mm
19,1 mm (3/4")
0.6 mm
Solid Terminal
8
20,6 mm (13/16")
Standard
Single
Platinum
Fine Wire
Non-Projected
5k Ohms
Resistor
Each


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

