LiftMaster 41A5434-11 Belt 7 ft Door

LiftMaster 41A5434-11 Garage Door Opener Belt - 7 ft Door

SKU:

41A5434-11

Availability:

In Stock

Description

41A5434-11 full belt assembly for a 7 ft tall garage door — genuine LiftMaster OEM. Fits LiftMaster 2500, 2500B, 2500D, 2580, 2280, 3280, 3500, 3500D, 3850, 8550, 8550W and 8550WL, and the equivalent LiftMaster, Chamberlain and Sears Craftsman openers of that generation. Complete belt ready to fit, not a length of raw belting.

Specifications

Part number	41A5434-11
Door height	7 ft
Belt family	41A5434 — the current LiftMaster belt drive generation
Fits	LiftMaster 2500, 2500B, 2500D, 2580, 2280, 3280, 3500, 3500D, 3850, 8550, 8550W and 8550WL
Type	Genuine LiftMaster OEM

Is this the right belt?

Two things must match: the belt family and the door height. Get either wrong and it will not tension correctly.

Check	This belt is right if…
The old belt	It is printed 41A5434-11 or 41A5434-11. The number is usually on the belt itself.
Opener model	2500, 2580, 2280, 3280, 3500, 3850, 8550 or the equivalent of that era
Door height	7 ft. Measure the door opening — not the old belt, in case the wrong length was fitted before.

Other lengths in this family

Door height	Genuine LiftMaster	Aftermarket
7 ft — this belt	41A5434-11	41A5434-11 aftermarket
8 ft	41A5434-13	41A5434-13 aftermarket
10 ft	41A5434-14	41A5434-14 aftermarket

The 41A5434-11 aftermarket is the same length and fitment at roughly a third of the price. Genuine LiftMaster is the choice where a warranty or specification requires OEM.

Wrong family? The 41A3589 fits 1270, 1280, 1280R. The 041A5250 fits WD822K, WD912KS, WD922K, LW2000, LW3500. These are not interchangeable. See the belt and rail selector if you are unsure.

Is the belt actually the problem?

A belt drive that will not move the door is not always a failed belt. Before ordering, check:

Symptom	Likely cause
Belt frayed, split or snapped	This belt
Belt intact but slack, will not hold tension	41B4103 tensioner — far cheaper, and a common misdiagnosis
Belt pulled out of its anchor at the trolley	041B5669 belt clip & link
Door releases on the cord but will not re-engage	41B3869-1 trolley assembly
Grinding or squealing along the rail	83A11-2 rail grease

Common questions

Will this fit my 2500? Yes — LiftMaster 2500, 2500B, 2500D, 2580, 2280, 3280, 3500, 3500D, 3850, 8550, 8550W and 8550WL all take the 41A5434 family, in the length that matches your door.

Is it the same as a Chamberlain or Craftsman belt? Yes. LiftMaster, Chamberlain and Sears Craftsman openers of the same generation share the drivetrain, so this belt fits all three.

How do I know if I need the 7 ft one? Go by the door opening height, not the opener model. Measure the door.

Can I splice my old belt instead? Connectors exist — 29B129 for the 41A3589 series and 29B130 otherwise — but a spliced belt is a repair, not a fix. If it has stretched enough to need splicing, it is due for replacement.

Does it come with a trolley? No, this is the belt assembly only. For a complete rail with belt and trolley see the rail assemblies — those ship as oversized freight, so confirm the rail is genuinely damaged first.

LiftMaster belt drive belts & rail parts · belt tensioner · trolley assembly · all garage door opener parts

Not sure which belt you need? Send us a photo of the old belt and your opener’s model number — parts@gatehousesupplies.com or 866-965-5599. We install and service this equipment and would rather confirm it than have you fit the wrong length. Since 1993.

32 Reviews Hide Reviews Show Reviews

5
Great product fast shipping

Posted by Grant Morrison on Aug 2nd 2021

Your system works easy to use. Thank you
5
belt

Posted by david couick on May 18th 2021

part exactly as described. staff helpful to determine which belt was needed for my model.
5
New Garage Door Belt and replacement video

Posted by tim glassman on Apr 28th 2021

3585p chamberlain liftmaster 3/4 hp elite series 7 foot belt replacement: Excellent youtube video: https://www.youtube.com/watch?v=RnJj1XHG70k
5
Great product

Posted by Martin Torres on Aug 17th 2020

Exactly what I order
5
Great product

Posted by Marthika on Jul 29th 2018

I contacted gate house supplies for product information, and I was quickly informed of the correct part number for my garage door .
Part was delivered quickly and worked efficiently.
5
Great Product!

Posted by Bradley Vern on Apr 14th 2018

Replacing my garage door belt myself saved me at least $150. It was promised on a Friday but arrived the Thursday before! There were easy to follow directions online plus their website was super easy to navigate with great tips. This is my new garage door resource.
5
MONEY SAVER

Posted by Bob H on Apr 2nd 2018

Great company. Local garage door company wanted $250.00 per belt for garage door opener plus labor. Got the belts from gatehouse at 1/3 the price and received them in three days. Great product, great price, great service. Highly recommended
5
Liftmaster drive belt

Posted by John on Mar 20th 2018

Needed to replace my belt, called gatehouse young lady who answered was super helpful knew my part number, had me set up in minutes, great service, will definitely recommend and use again, thanks for great customer service so many companies are lacking.
5
Great site

Posted by Charles Pindziak on Dec 13th 2017

The belt was hard to find locally and was able to find here at Gatehouse. Great service and belt arrived on time and was as expected. Thanks for you service.
5
Replacement Belt for Chamberlain LIftmaster

Posted by Craig Scherer on Aug 8th 2017

This belt was an exact match for the original, and installation was completed in less than an hour. I only had to reset the upper and lower limits for the door travel, and it was back in service.
5
Saved lots of $$$$

Posted by Daniel Bernabei on Jun 15th 2017

Online rep helped me find the exact belt needed for garage door motor. Easy checkout. Cheap price $70, installed it myself. Very easy. I had a service come look to get a ballpark estimate. They wanted $270. &#128563; Very happy with gatehouse. Thanks!
5
Excellent Customer SVC

Posted by Lisa1225 on Jan 19th 2017

Knowledgeable customer service helped me find the right part.
The part arrived fast and easy to install.