Autolite Copper Spark Plug 373- ReadReviews onAutolite Copper #373

Autolite Copper Spark Plug

Vehicle Specific

Part Number: 373
Features & Benefits

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite double platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance. Autolite is an official NASCAR performance partner.

  • Copper-glass seal bonds insulator, terminal post center electrode together, assures full required voltage at spark gap, gas-tight seal (100% leak proof)
  • Multi-rib insulator reduces danger of flash-over
  • One-piece terminal post adds strength
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Cold-formed steel shell precision rolled threads
  • Full Copper Core electrode provides better performance in all conditions
Product Details
Part Number: 373
Weight: 0.17lbs
Center Electrode Core Material: Copper
Center Electrode Design: Standard / Regular
Center Electrode Tip Material: Copper
Drive Size: 22.1mm
Ground Electrode Tip Material: Copper
Insulator Material: Ceramic
Insulator Type: Projected
Package Quantity: 1
Reach (in): 0.5
Resistor: No
Seat Style: Gasket
Thread Size: 18 mm X 1.50
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
This product may be shipped directly by the vendor to any eligible US addresses, excluding APO/FPO/DPO or US Territory addresses.
  • Overall

    Autolite Copper Spark Plug


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