Extension Spring Pulley 4" for doors up to 200lb


$14.99 $16.99

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Garage door sheave pulley 4" for extension cable, solid rivet. Steel. Zinc plated. For extension spring doors, 200# load. Are you looking for the clevis straps to make this pulley a set? You can get the compatible hardware kit for a set of 4" pulleys here.


  • 4" Diameter Steel Pulley


    • for doors up to 200lb
    • 3/8" Bore
    • Steel Construction
    • Zinc Plated
    • Compatible with up to 1/8" diameter cables
    • for Extension Spring Doors

    Take a look at this diagram to see the different spring types:

    Garage Door Spring Types

    When it comes to maintaining your garage door extension spring system, it's essential to keep in mind that two springs are needed to lift the weight of the door. For instance, if you have an 90lb garage door, you'll need two 90lb extension springs to lift it. Before replacing your garage door extension springs, it's important to review your door size and weight to purchase the correct springs, cables, and pulleys.

    Our expert recommendation is to replace both springs, pulleys, and cables at the same time to guarantee they are evenly balanced and to save you from having to do it again any time soon. Over time, extension springs can stretch and become fatigued, which can cause issues if only one is replaced. By replacing all the parts of the extension spring system including the cables and pulleys, you can ensure the smooth and safe operation of your garage door.

    To make the replacement process even more convenient, you can purchase all the required extension spring components on our site. That includes the extension springs, clevis strap fastener, pulley kit and cables. This will ensure that you have all the necessary parts for the replacement and get it done right the first time.

    It's also worth noting that this pulley is specifically designed for garage door extension spring systems and is not compatible with torsion or torquemaster spring systems. To ensure you have all the necessary parts for the replacement, you can purchase the compatible hardware kit for a set of pulleys separately.

    Replacing garage door extension spring pulley is a crucial task that can be done if you are a decent do it yourselfer. It is recommended to replace all parts of the extension spring system including the springs, pulleys, and cables to maintain an even balance and ensure smooth, safe operation of the garage door. Remember to always pay attention to make sure your pulleys and cables are compatible with the spring system and door height and weight that you have.

    Here are some great how to guides on extension spring install:

    Click here to download instruction manual

    Compatible with:

    • Most residential steel and wood doors with standard lift Extension Springs up to 200lb