NGK 5728 BMR4A Nickel Spark Plug

5728 / BMR4A NGK Spark Plug with Removable Terminal Nut

NGK standard plugs are constructed for longer life and optimum performance.

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

Shell
Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 9.5mm (3/8")
Hex Size: 3/4" (19mm)
Terminal Type: Removable Nut
Overall Height: Bantam
Gap: .028" (0.7mm)

Center Electrode
Material: Nickel
Type: Standard
Size: 2.5mm
Projection: Non-Projected
Ground Electrode
Material: Nickel
Type; Standard

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 4
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

Commercial and Industrial Engines

Fuji Robin
EY08BN

Honda
WA15
WB 10
WB 15
WB15

• Mfg Part No: 5728 BMR4A
• Related Part No: 5728 BMR4A