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 $25.

Enroll in Speed Perks for more savings.

Cart is empty!

Add Something to the cart

includes estimated shipping

Vehicle added


Find parts for the selected vehicle:

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

    Add a

    Add a

    National O-Ring (sold by each)

    Loading ...
    Warranty Information
    • Product Details

      Part No. 155PKG

      Warranty Details (3 YR REPLACEMENT IF DEFECTIVE)

      National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today's vehicles.

      Product Features:

      • Standard size
      • Temperature range: -40°F to 225°F; -40°C to 107°C
      • Excellent resistance to petroleum-based oils and fuels, water & alcohol
      • Good resistance to acids & bases (except those with a strong oxidizing effect)
      • Designed for a variety of industrial and automotive applications

    • Specifications
      • Thickness:0.103 in
        Outside Diameter:4.193 in
        Inside Diameter:3.987 in
    • Read Review
    • Q & A