FuelTech NGK Racing Spark Plug R5671A-10 - 5016100680
Extreme-Duty Racing Spark Plug for High-Performance Engines
The FuelTech NGK Racing Spark Plug R5671A-10 is engineered for serious racing environments where reliability, consistency, and durability are critical. Built to handle high cylinder pressures, extreme temperatures, and sustained high RPM, this plug is trusted in competitive motorsports around the world.
Featuring a nickel alloy center electrode with a V-groove design, the R5671A-10 delivers consistent spark performance under demanding conditions. Combined with NGKs OE ceramic technology and a solid copper core, this plug ensures excellent heat dissipation and dependable ignition stability in high-output engines.
Built for Harsh Racing Conditions
This plug is specifically designed to thrive in environments where standard spark plugs fail. Whether you're running boosted, high-compression, or race fuel setups, it provides the durability and performance needed for consistent ignition.
- Designed for extreme racing applications
- Handles high heat and high RPM operation
- Used in professional motorsports worldwide
- Ideal for high-compression and forced induction engines
Advanced Materials for Reliable Ignition
NGK combines premium materials and manufacturing processes to ensure this plug performs under pressure.
- Solid copper core improves heat transfer and conductivity
- Nickel alloy electrodes provide durability and consistent spark
- V-groove design enhances ignitability and flame propagation
- High-grade ceramic insulator ensures strong dielectric performance
Engineered for Easy Installation and Longevity
Designed with both performance and serviceability in mind, this plug includes features that help protect your engine and simplify installation.
- Cold-rolled threads reduce risk of cross-threading
- Trivalent metal plating prevents corrosion and seizing
- Non-removable terminal ensures secure electrical connection
- Built for repeated use in racing conditions
Features
- NGK R5671A-10 racing spark plug design
- Nickel alloy center electrode with V-groove
- OE ceramic insulator for superior dielectric strength
- 98 percent pure copper core for heat dissipation
- Cold-rolled threads for safe installation
- Trivalent plating for corrosion resistance
- Designed for high-performance racing engines
Quick Specs
- Brand: FuelTech / NGK
- Plug Number: R5671A-10
- Thread Size: M14
- Heat Range: 10
- Hex Size: 5/8 Inch
- Center Electrode Material: Nickel
- Center Electrode Core: Copper
- Center Electrode Tip Material: Nickel
- Ground Electrode Material: Nickel
- Number of Ground Electrodes: 1
- Preset Gap: 0.020 Inch (0.50mm)
- Thread Reach: 0.750 Inch (19mm)
- Resistor Plug: No
- Approximate Resistor Value: 1 Ohm
- Insulator Height: 50mm
- Terminal Type: Non-Removable Nut
- Recommended Usage: Racing Only
- Part Number: 5016100680
FAQs
What engines is the R5671A-10 best suited for?
This plug is designed for high-performance racing engines, including high-compression, boosted, and high-RPM applications where standard plugs may fail.
Is this spark plug suitable for street use?
No. The R5671A-10 is intended for racing use only and is not recommended for typical street-driven vehicles due to its heat range and design.
Why Buy from Beefcake Racing?
At Beefcake Racing, we supply proven performance parts that racers and builders trust. From ignition components to complete engine management solutions, we help you get the most out of your setup.
Our team understands high-performance builds and provides expert guidance, fast shipping, and unmatched customer support.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
