TR55 V-Power Resistor Spark Plug 14mm x .708 in. Reach

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TR55 V-Power Resistor Spark Plug 14mm x .708 in. Reach

Name: TR55 V-Power Resistor Spark Plug 14mm x .708 in. Reach
Brand: NGK SPARK PLUGS
SKU: 739-TR55
Price: 4.99 USD
Availability: OutOfStock

^$4⁹⁹

More than 10 available

Ships on Nov 02, 2026

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Hot-Medium Heat Range

14mm x .708 in. Reach
5/8 in. Hex
Projected
Tapered seat
.059 in. Gap
Tip material: Nickel Alloy
Core Material: Copper
Sold Individually

NGK TR55 Features:
NGK V-Power spark plugs deliver reliable, cost-effective performance for a wide range of automotive applications and feature exclusive NGK V-Groove technology for improved combustion efficiency. The precision-cut V-Groove design enhances ignitability by concentrating the spark at the edge of the center electrode, reducing voltage demands on the ignition system and promoting faster flame propagation. This results in more complete fuel burn, improved throttle response, better acceleration, and increased fuel economy. Engineered with strong anti-fouling characteristics and resistance to electrical and chemical wear, NGK V-Power plugs provide long-lasting durability and consistent performance. Available in hundreds of universal and vehicle-specific configurations, NGK V-Power spark plugs are designed to deliver dependable ignition and optimal engine performance when matched to your exact application.

Modern, lean-burning, fuel-efficient engines call for new lower sparking voltage requirements. NGK Spark Plugs responded by developing V-Power Spark Plugs with V-groove center electrodes. The V-groove center electrode forces the spark to the ground electrode's outer edge, placing the spark closer to the air/fuel mixture to ignite it quicker for more complete combustion (thus greater power & less harmful emissions).

Today's performance engines are often high-compression/high-stress: supercharged, turbocharged, or fed by nitrous oxide. Ideal for high-performance street and race cars, NGK's patented V-groove design allows an ignition system to spark easily in such dense air/fuel mixtures. The flame kernel grows rapidly and enables an engine to potentially make more power because it's operating more efficiently. As a bonus, the spark's outer edge location helps limit the quenching effect, reducing misfires caused by high cylinder pressures "blowing out" the spark. V-Power Spark Plugs also use lower ignition firing voltage, which results in faster starts and easier cold starts throughout the life of the plugs. Sold individually.

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