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Highway Stars will be closed from December 23rd 2024 thru January 3rd 2025

Highway Stars will re-open on Monday, January 6th 2025

 


During this holiday closure, our website will be set up for BROWSING ONLY.

NOTE: (the add to cart button will not appear).

You may browse our website at www.highwaystars.net, BUT you will not be able to add anything to your cart UNTIL Friday, January 3rd 2025.


Highway Stars will re-open on MONDAY JANUARY 6th, 2025

 

During this Holiday Season, our thoughts turn gratefully

to those who have made our progress possible.

It is in this spirit we say . . .

 

Thank you and best wishes for the holidays

and a Happy New Year!

 

  • Spark Plug - Genuine ACDelco R42TS in stock at Highway Stars
  • Spark Plug - Genuine ACDelco R42TS in stock at Highway Stars
  • Spark Plug - Genuine ACDelco R42TS in stock at Highway Stars

    • Spark Plug - Genuine ACDelco R42TS

    MSRP: $4.18
    Was: $2.79
    Now: $2.49
    (You save $1.69 )
    (No reviews yet) Write a Review
    SKU:
    R42TS
    Condition:
    New

    Product Description

    Brand-new genuine ACDelco R42TS spark plug. This spark plug is two heat ranges colder than the original stock R44TS factory installed spark plugs.

    This plug is designed to dissipate heat much faster than a stock plug in order to reduce the center electrode temperature and prevent detonation on heavily modified engines and racing applications running under extreme boost and RPM levels.  We do not recommend this heat range for stock and mostly street driven vehicles as it will run too cool to burn off combustion deposits and may foul prematurely, causing misfires.

    This genuine ACDelco part will ship in its original box as pictured.

    Recommended gap = 0.035"

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