Skip to Main Content Skip to Footer Links
Error occured! Please reload the page and try again
Choose a Store
Open till 
There are vehicles in your garage

Free shipping on orders over $35.

Enroll in Speed Perks for more savings.


Cart is empty!


Add Something to the cart

includes estimated shipping



Vehicle added

Vehicles

Find parts for the selected vehicle:

View Vehicles
Are you sure you want to delete this vehicle?

    Add a


    Add a


    ACDelco Cylinder Head Opening Cover O-Ring

    Loading ...
    Warranty Information
    • Product Details

      Part No. 12578146

      Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)

      ACDelco GM Original Equipment Multi Purpose O-Ring is a GM-recommended replacement component for one or more of the following vehicle systems: engine - mechanical. This original equipment o-ring will provide the same performance, durability, and service life you expect from General Motors.

      Product Features:

      • GM-recommended replacement part for your GM vehicle's original factory component
      • Offering the quality, reliability, and durability of GM OE
      • Manufactured to GM OE specification for fit, form, and function

    • Specifications
      • Color:Black
        Inside Diameter:1.36 in
        Material:Rubber, Aluminum
        Programming Required:No
        Rim Shape:Square
        Thickness:0.11 in
    • Read Review
    • Q & A