Description:
Autolite Platinum spark plugs are engineered with a platinum center electrode firing tip that provides improved performance and increased durability, making it a reliable choice for all older engine applications and designs. Its platinum design delivers quicker firing, smoother starts, for better acceleration, and improved fuel efficiency.
Features and Benefits:
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
- Engineered with a platinum firing tip that prevents gap erosion for longer service life.
- Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- The multi-rib insulator prevents flash-over.
Specifications:
Center Electrode Core Material:
Copper
Center Electrode Insulator Tip Projection:
0.172 in.
Center Electrode Insulator Tip Projection:
4.37 mm
Center Electrode Projection:
Long Projection
Center Electrode Tip Material:
Platinum
Core Nose Length:
0.5 in.
Core Nose Length:
12.7 mm
Electrical Terminal Type:
Non-Removable Nut
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Nickel
Insulator Height:
2.026 in.
Insulator Height:
51.46 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
10
Champion Spark Plug #:
403
Manufacturer Warranty:
4 Years
