NGK Spark Plug - BKR6EKU

Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth. Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs, including:
Corrugated Ribs to Prevent Flashover
Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
Copper core to aid in heat removal
Triple seals to prevent leakage Shell
Thread Diameter 14mm
Thread Pitch 1.25mm
Seat Type Gasket
Reach 19mm (3/4")
Hex Size 5/8" (16mm)
Terminal Type Solid
Overall Height ISO
Gap .024" (0.6mm)
Center Electrode Material Nickel
Type Standard
Size 2.5mm
Projection Projected
Ground Electrode Material Nickel
Type Semi-Surface Discharge

Specifications
Resistor Yes
Resistor Value 5k Ohm
Heat Range 6
Features
Intermittent Gap
Torque Specs
Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.