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 Core Material:
Copper
Center Electrode Insulator Tip Projection:
0.15 in.
Center Electrode Insulator Tip Projection:
3.81 mm
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Platinum
Core Nose Length:
0.514 in.
Core Nose Length:
13.06 mm
Electrical Terminal Type:
Non-Removable Nut
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Ground Electrode Tip Material:
Platinum
Insulator Height:
2.012 in.
Insulator Height:
51.1 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
10
Champion Spark Plug #:
991
Champion Spark Plug #:
REA8MCX
General Motors #:
5614235
Manufacturer Warranty:
5 Years
