NGK 7447 BUZ8H Surface Gap Spark Plug
NGK 7447 BUZ8H Surface Gap Spark Plug.
NGK's 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.
Fits Johnson and Mercury outboard engines, Mercury inboard engines and Bayliner, Caribe, Checkmate, Cutter, Delta Sonic Jet, Dynasty, Euroline, Nautica, North River, Northstar, Regal, Sea Ray, Sea-Doo, Sugar Sand, Tender Jet and Voyager marine jet boat engines.
Specifications:
Shell
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Resistor Value: Inductive
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
Ground Electrode
Material: Nickel
Type: Surface Discharge
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Brand: NGK
Heat Range: 8
NGK's 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.
Fits Johnson and Mercury outboard engines, Mercury inboard engines and Bayliner, Caribe, Checkmate, Cutter, Delta Sonic Jet, Dynasty, Euroline, Nautica, North River, Northstar, Regal, Sea Ray, Sea-Doo, Sugar Sand, Tender Jet and Voyager marine jet boat engines.
Specifications:
| Brand | NGK Spark Plugs |
|---|---|
| Cross Reference / Specs |
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