Autolite 25 Sparkplug
Traditional nickel electrodes. Copper core improves resistance to fouling. Power tip extends further into the combustion chamber to aid in self-cleaning, reducing fouling at low rpms and pre-ignition at high speeds.
Thread Diameter14mm
Thread Pitch1.25mm
Seat Type Tapered
Reach11mm (7/16")
Hex Size5/8" (16mm)
Terminal Type Solid
Gap.045" (1.15mm)
Center Electrode
Material Nickel
Type Standard
Size2.5mm
Projection Projected
Ground Electrode
Material Nickel
Type Standard
Quantity 1
Specifications
Resistor Yes
Resistor Value4k Ohm
Heat Range4
Torque Specs Cast Iron: 7-15 lb. ft. Aluminum: 7-15 lb. ft.
Part Information
Brand Autolite
Warranty2 Years
Longevity30k Miles