Product Description
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 vehicle manufacturers associated with this reference include:
Aston Martin
Buick
Cadillac
Chevrolet
Ford
GMC
Isuzu
Lincoln
Mazda
Mercury
Oldsmobile
Pontiac
Saturn
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.
| NGK TR55 / 3951 |
ACDelco R44LTS6 / 41-601 |
Motorcraft AGSF32N |
Champion RS12YC6 |
Denso T16EPR-U15 |
