Genuine Authentic NGK 3951 TR55 V-Power Spark Plugs 6 Pack

Electrode Material: Nickel
Thread Size: 0.551"
Thread Reach: 0.708"
Ground Electrode Quantity: 1
Gap: 0.060"
Spark Plug Seat Style: Tapered
Heat Range: 5
Longevity: 30k Miles
Thread Diameter: 14 mm
Overall Height: ISO
Resistance: 5 kOhm
Insulator Height: 53 mm
Center Electrode Core Material: Copper Core
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Ground Electrode Tip Design: Standard
Insulator Type: Projected
Nominal Gap: 0.060"

Lower ignition system voltage requirements
Greater ignitability and performance over conventional spark plugs
Increased fuel economy and lower emissions
Highly durable against electrical and chemical wear
Good performance spark plug
45° V-Power center electrode
Manufactured using triple-gasket sealing process to prevent leakage through the shell
Alumina silicate insulator for strength and optimal heat transfer
Solid-copper core for a more powerful spark with less firing voltage
Cold-rolled threads for easier removal and installation
Corrugated ribs eliminate misfire causing “flashover”
Trivalent metal plating
Increased anti-fouling characteristics and performance

Designed to ignite the air/fuel mixture within the combustion chamber, a spark plug has to withstand the high temperature and combustion pressure within the engine. If everything operates properly, the engine runs efficiently providing optimal performance, maximum fuel economy and the lowest exhaust emissions due to effective combustion. Spark plugs are available in different heat ranges and thread sizes to suit engine requirements. There are several factors - such as thread reach, thread diameter, the insulator nose projection and whether the spark plug incorporates a gasket or is of the conical type - to consider when choosing the correct spark plug for your needs.

The spark plugs also feature the alumina silicate insulator that is virtually pure to insure dielectric and physical strength, as well as heat transfer away from the tip for maximum performance. To eliminate “flash over,” which can cause misfiring, these products are built with corrugated ribs and feature cold-rolled threads to prevent damage to the cylinder head and make installation and removal easier. The products also feature trivalent metal plating for superior anti-corrosion and anti-seizing properties.