NGK BUZ8H 7447 Spark Plug Set of 4

Ngk Buz8h 7447 Spark Plug. Surface Gap Plugs Are Nearly Immune To Pre-Ignition, And Usually Require A Special High Energy Ignition System. They Can Be Susceptible To Fouling, Especially In Colder Applications, But May Be Necessary In High Compression Applications.Features:- 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 LeakageSpecifications:- Shell- Thread Diameter: 14mm- Thread Pitch: 1.25mm- Seat Type: Gasket- Reach: 12.7mm (1/2´´)- Hex Size: 13/16´´ (21mm)- Terminal Type: Solid- Overall Height: Iso- Gap: .016´´ (0.4mm)- Center: Electrode- Material: Nickel- Type: Standard- Size: 2.5mm- Projection: Non-Projected- Type: Surface Discharge- Resistor: Yes- Resistor Type: Inductive- Resistor Value: 35 Ohms- Heat Range: 8- Torque Specscast Iron: 18-25.3 Lb. Ft. Aluminum: 18-21.6 Lb. Ft. tradeinn Motardinn

The NGK BUZ8H is part of the NGK Standard range.A conventional NGK nickel-alloy spark plug with a copper-cored centre electrode. The copper core carries heat away from the firing tip quickly, which lets the plug run cooler under load while still burning off deposits at low speed, so it resists both overheating and fouling better than a plain nickel plug. NGK's standard range is the direct replacement where a conventional plug is specified and remains the sensible choice for classic engines, motorcycles, garden machinery and everyday servicing. Easy to inspect and re-gap, with a triple-seal construction against gas leakage and a corrugated insulator to prevent flashover.