NGK Spark Plug ZFR7F 5913
NGK's V-Power Plugs Feature a Unique V-Cut in the Center Electrode that Directs the Spark to the Edge of the Electrode, Helping the Spark Develop More Rapidly, Increasing Ignitability and Reducing Quenching.
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties Corrugated Ribs Prevent Flashover Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer Copper Core Aids in Heat Removal Triple Seals Prevent Leakage
Body
Thread Size: 14mm Thread Pitch: 1.25mm Seat Type: Gasket Resistor: Yes Resistor Value: 5K Ohm Reach: 19mm (3/4") Hex Size: 5/8" (16mm) Terminal Type: Solid Overall Height: ISO Gap: .031" (0.8mm)
Center Electrode
Material: Nickel Type: V-Cut Size: 2.5mm Projection: Extended Projection
Ground Electrode
Material: Nickel Type: Standard Quantity: 1
Specifications
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft. Brand: NGK Heat Range: 7 Longevity: 30k
Outboard Application