Home - Return to Previous Page
Click on image to zoom

Autolite AR103 Racing Spark Plug

Great Plug for High Compression, Forced Induction and Nitrous Applications.
Pricing: $5.99


The Autolite AR103 Spark Plugs are a great plug for Modular Engines that will see increase cylinder pressures due to High Compression, Forced Induction or Nitrous Applications. These plugs are specifically designed for smaller bore engines like the Ford Modular Engines.  

  • Manufacturer Heat Range: Appox: 6.5 - 7 
  • Electrode Core Material:Copper
  • Electrode Tip Material:Chromium Nickel Alloy 
  • 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-AR103
  • AUT-AR103
  • Autolite
  • New


Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.