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One-Piece Garage Doors
Millions of one piece, jamb mounted garage doors have been installed and are operational across the USA, especially in the western regions. One piece garage doors are advantageous because they are easy to install, take up less headroom in the garage and can fit in tighter spaces than sectional doors.
P528 Plug-End Extension Spring
Used for One-Piece Garage Doors
The P528 28" Plug-End Garage Door Spring is a Holmes spring replacement for 7 ft. or higher one piece garage doors. Two springs are required to operate the 7 ft. one piece door. This product is perfect for DIY garage door repair.
Plug Spring-End
A c-hook is required for a single spring installation while a w-hook is required for a double spring installation - available separately.
Replace Springs at Same Time
We recommend replacing all springs at the same time for balanced door lift and even wear. PROUDLY MANUFACTURED IN THE USA.
Spring Specs
- Length Over Coils: 28 in.
- Outside Diameter: 1-5/8 in.
- Wire Diameter & Gauge: (.207) #5
- Initial Tension: 135-145 lbs
- Max. Allowable Stretch: 22 in.
- Minimum 1 in. low headroom required
- Handles 105 - 175 lb. for single door garages and 200 - 350 lb. for double door garages
- Safety containment to prevent it from coming loose
Jerry
Reviewed in the United States on April 13, 2021
Perfect
Duke
Reviewed in the United States on September 30, 2020
Thought I was ordering 2 springs from the photo. Used the sizing method per instructions (counting coils, etc) but the spring was MUCH stiffer than the springs I was replacing on an old one piece garage door. Had to install with a bunch of slack in the chain and adjust to the weakest position in order to close the door. On open position the garage door operator holds the door all the way open. I chose these springs because of the safety wires that are supposed to contain a broken spring.If you aren't familiar with garage doors or operators be very wary of doing this yourself.I thought the difference in tension must have been the old springs were stretched out but I believe the temper or diameter must have been a little different. Seller was no help in resolving the issue.
klach
Reviewed in the United States on June 28, 2018
Easy to use, works great!
Correy
Reviewed in the United States on August 5, 2016
This spring was a direct replacement for my father's toy hauler. It installed very easily and works great. Thank you!
N H.
Reviewed in the United States on May 4, 2016
Worked great. It was the same brand that was originally installed in 1981.
Gary L. Pyles
Reviewed in the United States on May 10, 2016
Order the right part and it fits. Works great.
Ron4478
Reviewed in the United States on September 1, 2015
I was replacing the hinge hardware on my heavy wood garage door as the rod bearings were falling out of the joint. I decided to replace the springs as well, though they were working ok. That way everything would be new.My original springs were P728C, which the discription said was good for up to 300 pounds. My door is sold wood and heavy. I decided to change to a stronger spring (P528C) which the discriptions said would handle doors up to 350 pounds. When I installed the new springs, the electric door opener could no longer open the door. It would stop at about 4 ft. This did not make sense to me. I adjusted the attachment points, lowering the bottom lag screw one inche. The door would still not open.I then re install the old springs and the door opened with no problem. I also noted that the new springs were 1 inch shorter than my old springs. Perhaps they were mismarked???All I know is these springs could not handle the weight of my solid wood door, while the old springs (P728C) worked well.....I had to return the new springs, which Amazon handled with no issues.
Princess
Reviewed in the United States on August 28, 2015
Had to replace one side. It does what it says
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