NGK TR55 3951 V-Power Spark Plug

Genuine NGK TR55 V-Power copper spark plug with a tapered seat, sold individually — buy more and save (a V8 needs 8).
The patented trapezoidal V-Groove center electrode delivers complete combustion, smoother idle and crisp throttle response; a popular copper service plug for many GM and Ford V6/V8 engines.
Always verify specifications prior to installation.

Key Features

• Patented V-Groove center electrode for complete combustion and improved ignitability
• Solid copper core for superior heat removal and broad heat range
• Trivalent metal plating for anti-corrosion and anti-seizing
• Pure alumina silicate ceramic insulator
• Genuine NGK OE quality

Technical Specifications
Brand: NGK
Part Type: V-Power Copper Spark Plug
NGK Stock No: 3951
Thread: 14 mm
Reach: 17.5 mm (.708")
Hex: 16 mm (5/8")
Seat: Tapered
Tip: Projected
Terminal: Solid
Heat Range: 5
Resistor: Yes
Gap: 1.5 mm (0.060 in)
Sold: Individually 

Common applications associated with this reference include:

Spark plug fitment varies by engine and year. Confirm the correct plug for your application before ordering.

Cross-reference numbers are provided for identification purposes only.
Always confirm fitment using your vehicle or equipment OEM part number, engine specification, and service data before ordering.