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Your cart is empty. Pusher springs create a downward acting force against the top section of your garage door to prevent cables from slipping off the drums. They are most often required when jackshaft side mount openers are installed on standard lift doors which lack a natural downward acting force.
1. What are pusher springs used for?
The main purpose of spring pusher installation is to assist in maintaining constant cable tension when the door is starting the down cycle. This is especially the case on standard lift doors that lack a downward acting force achieved with high lift or full vertical lift doors. When an opener starts running with the door in the open position there is a tendency for the door to initially jump – causing cables to be thrown of the drums.
Jack shaft operators installed on standard lift doors are especially prone to cables being thrown off the drums because they lack a natural downward acting force.
Another secondary benefit of pusher springs is the prevention of the door flying off the back end of the horizontal tracks in the event of user or operator error. This is especially the case on manually opened and closed doors where the user might fling the door open with excessive force.
This problem is quite common in loading dock bays and storage facilities where people fling the door upward as fast as they can. Although track bolts are fastened to the ends of the horizontal track to stop door travel, pusher springs do a much better job stopping door travel.
2. Do I Need Pusher Springs or Track Bumpers?
Pusher springs are often called plungers or bumpers, but shouldn’t be confused with a different part called a leaf bumper.
As the name implies, pusher springs are spring loaded and leaf bumpers are not. As the garage door travels towards the end of horizontal track the top section compresses against the pusher spring.
Then when the door starts downward travel the pusher springs unloads the compression force against the top panel, avoiding the sudden jump at the start of door travel. This push force is usually enough to keep the cables from slipping over the grooves of the drum.
If you are looking for an aid to keep your garage door cables from jumping off the cable spools pusher springs are needed. If you are looking to keep your garage door from slamming into the track bolts at the end of the horizontal tracks “leaf style” bumpers are needed.
Pusher springs are installed at the back of the horizontal tracks compressing against the top section as the door opens. When the door starts closing that tension is slowly released to prevent the sudden jump start that causes cables to slip off the drums. Pusher springs are often referred to by other names such as plungers, bumpers, stoppers and pushers.
Julinda Stout
Reviewed in the United States on March 6, 2025
Works great. Could not open our door all the way before because of cable tension issues. These are the cheapest I found. They are holding up great. Just had to drill 4 holes to install. They are a little noisy. I can hear them over the opener but having full door use is great
Ferme Bois mou 2001 inc
Reviewed in Canada on January 7, 2025
ca fait le travaIL
gaetan chauvette
Reviewed in Canada on January 27, 2025
pour porte de garage
Matthew S.
Reviewed in the United States on August 31, 2024
If I need anymore of these in the future I will definitely buy from this seller!
Mr. C Grant
Reviewed in Canada on March 17, 2024
Could have gone with a size down for a residential garage door. But definitely worth the price. Very sturdy hardware. Doesn't come with nuts or bolts to install though.
Dentman
Reviewed in the United States on December 31, 2024
Product was just like
RJ Cormack
Reviewed in the United States on December 15, 2024
Not sure what is wrong, the box shows no signs of damage, but one is stuck and won't move. The good one seems like it would be a good product if they were both functional.
Customer
Reviewed in the United States on November 27, 2024
Fixed my issue with two doors. The cable would become slack at the top these keep the cable taut and stops it from unwinding.
KMom
Reviewed in the United States on October 14, 2024
My jackshaft wall mounted garage door opener would fail to close over and over. Since installing these, it operates as it should.Easy install. The downside, is that it didn’t come with hardware. Common sense installation.
Tim
Reviewed in the United States on April 24, 2024
well made
M. i
Reviewed in Canada on December 25, 2023
I recently purchased a pair of 15" Garage Door Plunger Bumper Springs and I am delighted with their performance. These springs are of excellent quality and have greatly improved the functionality of my garage door. The 15" size is perfect for my needs and provides the right amount of tension for smooth operation. The installation was straightforward, and the springs have proven to be durable and reliable. I recommend these Garage Door Plunger Bumper Springs.
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