Description:
Autolite Double Platinum spark plugs have a platinum-to-platinum design that decreases gap erosion, reduces misfires, and provides improved durability*, leading to longer service life. It provides superior performance over copper and platinum plugs primarily used in distributorless ignition system (DIS) engines.
Features and Benefits:
- Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
- Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
- The multi-rib insulator prevents flash-over.
- The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Specifications:
Center Electrode Design:
Standard
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Platinum in.
Electrical Terminal Type:
NonRemovable Nut
Ground Electrode Tip Design:
Not Tapered
Ground Electrode Tip Material:
Platinum in.
Manufacturer Heat Range:
9
Terminal Type:
Non Removable Nut
General Motors #:
21020186
Manufacturer Warranty:
5 Years
