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Autolite 103 Spark Plug

Good Plug for Stock Replacement, Mild Modification and Bolt Ons
Pricing: $3.99


The Autolite 103 Spark Plugs are a great plug for stock or mildly modified engines with stock compression ratios. Not recommended for any type of power adder application. Very good plugs for a near stock daily driver. 

  • Manufacturer Heat Range:3
  • Electrode Core Material:Copper
  • Electrode Tip Material:Copper
  • Insulator Type:Projected
  • Spark Plug Thread Size:14mm
  • Spark Plug Reach:0.708 in.
  • Spark Plug Seat Style:Tapered
  • Wrench Diameter:5/8 in.


  • AUT-103
  • AUT-103
  • Autolite
  • New


Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.

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