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Cycle Performance Spark Plug Indexing Washers

(1 review)

Item: 354994

$26.49

Universal Fit: Review specifications carefully.

Cycle Performance Spark Plug Indexing Washers


  • Available to fit 10mm, 12mm and 14mm spark plug threads
  • Allows the tuner to precisely index spark plugs for maximum fuel burn
  • Kit includes 15 washers:
    • five .040" thick
    • five .050" thick
    • five .060" thick
  • Made in the USA
Specification Details
Country of Origin USA
Quantity 15
Size Varies (make selection above)

Customer Reviews

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Indexing Washers

By   on  Verified Purchaser

Only place that I had found that carried these 12MM indexing washers. I put them to use on my 60+ year old race car engine with a aluminum cylinder head. You still have to install plugs down finger tight mark where the plug electrode end is. Then figure a additional 1/2 turn for full tightness to see where the plug would end up at. The 1/2 turn comes just short of 10 ft lbs. of torque that is the aluminum cylinder head recommended maximum torque.


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