Set 8Pcs Ngk Racing Spark Plugs Stock 4091 Nickel Core Tip Standard 0 032In R5671A 7

The NGK 4091 V-Power Racing Spark Plug (R5671A-7) is engineered for extreme performance in racing and high-horsepower engines. With a projected tip design, solid copper core, and cold heat range, it delivers superior ignitability, detonation resistance, and consistent combustion under high RPM and extreme pressure conditions.

Features & Benefits:

🔧 V-Power design enhances ignitability and flame propagation
🔧 Cold heat range ideal for high-compression, high-RPM engines
🔧 Copper core provides excellent thermal conductivity
🔧 Non-resistor racing design for maximum spark energy

Specifications:

Brand & Part Number: NGK 4091 (R5671A-7)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 7
Seat Type: Gasket
Resistor: No
Gap: 0.7mm (0.028 in)

Choose NGK R5671A-7 V-Power Racing Spark Plugs for peak ignition performance, durability, and reliability in your competition engine—trusted by racers worldwide!