Brand: NGK Spark Plugs
Manufacturer's Part Number: TR55/3951
Part Type: Spark Plugs
Product Line: NGK V-Power Spark Plugs
Summit Racing Part Number: NGK-3951
Shorty Spark Plug: No
Manufacturer Heat Range: 5
Electrode Core Material: Copper
Electrode Tip Material: Nickel alloy
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.691 in.
Spark Plug Seat Style: Tapered
Wrench Diameter: 5/8 in.
NGK V-Power spark plugs offer economical performance for nearly any automotive application and they're the only plugs with NGK's V-Groove technology. These plugs enhance ignitability, lower the voltage requirements of ignition systems, and have strong anti-fouling characteristics while improving fuel mileage and acceleration performance. The V-Power plugs are also highly durable against electrical and chemical wear, making them long-life replacement plugs. Because of the V-Groove, the spark occurs at the edge of the center electrode so heat is not absorbed by the electrode itself. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. More than a hundred models are available; order the plugs designed for fitment on your vehicle.