American express Apple pay Diners club Discover Facebook pay Google pay Master Paypal Shopify pay Venmo Visa

Extension Spring Pulley 4" for doors up to 200lb

Wayne Dalton


In Stock

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.

    Compatible with:

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

    Blog posts - Garage Door DIY Handbook

    Garage Door Bottom Brackets
    Garage Door Brackets

    January 18, 2023

    It's not a good idea to ignore a broken garage door bracket. If your door wont go up, one of the first places to check is the opener bracket. If the door in binding, you might check the end bearing plates for alignment. There are a bunch of different brackets on a garage door and in this article we will go over them.

    View full article →

    Garage Door Hinges
    Garage Door Hinges

    January 11, 2023

    If you have a broken garage door hinge, it may seem like a simple fix, but there are many parts inside these doors that come into play when something breaks down. Hinges are one of those parts that can cause problems if they're damaged or bent out of shape because they provide stability to the rest of the structure

    View full article →

    Garage Door Weather Seal
    Garage Door Weather Seal

    January 06, 2023

    If you have an older garage door, chances are that it doesn’t seal very well. If the garage door isn’t properly sealed, cold air will blow in and warm air will escape from the garage. Garage door weatherstrip is designed to protect the interior of the garage from weather and improve energy efficiency.

    View full article →