Garage Door Opener Replacement Belts
Garage door opener replacement belts and belt parts for LiftMaster, Chamberlain, Craftsman, Genie, Marantec, Linear and Hormann belt drive openers. Belts come in lengths for 7', 8' and 10' doors (and more for Genie), so match the length to your door height.
Not sure which belt you have? The guide below the products explains.
Marantec 8030278 Replacement Belt for 7' Garage DoorSKU: 8030278$46.01 As low as $41.41Genuine Marantec OEM replacement belt for 7' garage door…
Marantec 8030279 Replacement Belt for 8' Garage DoorSKU: 8030279$53.00 As low as $47.70Marantec part 8030279 replacement drive belt for 8'…
Chamberlain 41A5250 Full Belt Assembly 7'SKU: 41A5250$138.70 As low as $124.83Chamberlain 41A5250 Full Belt Assembly 7'
Linear HAE00023 7 ft Belt Assembly w/ innerslideSKU: HAE00023$130.60 As low as $117.54Compatible with Linear garage door opener models: LDO33,…
Chamberlain 41A5250-1 Full Belt Assembly for 8 ft Garage Doors, One-Piece Replacement BeltSKU: 41A5250-1$148.74 As low as $133.87The genuine Chamberlain 41A5250-1 is the one-piece…
Hormann D437347 Replacement Belt Kit for 7-8 ft SilentDrive Rails (SD5500, SD7500, SD8500)SKU: D437347$27.72 As low as $24.95Genuine Hörmann D437347 replacement belt kit for…
Hormann D437348 Replacement Belt Kit for 10-12 ft SilentDrive Rails (SD5500, SD7500, SD8500)SKU: D437348$59.60 As low as $53.64Genuine Hörmann D437348 replacement belt kit for…
Marantec 8030280 Replacement Belt for 10' Garage DoorSKU: 8030280$66.00 As low as $59.40OEM replacement drive belt for Marantec belt-drive openers…
Linear HAE00033 8 ft Belt Assembly w/ innerslideSKU: HAE00033$166.14 As low as $149.53Compatible with Linear garage door opener models: LDO33,…
LiftMaster 41A5434-11A Replacement Belt for 7' Garage Door, Full Belt Assembly for Belt Drive OpenersSKU: 41A5434-11A$138.70 As low as $124.83Genuine LiftMaster 41A5434-11A replacement belt for…
LiftMaster 41A5434-13A Replacement Belt for 8 ft Garage Door, Full Belt AssemblySKU: 41A5434-13A$148.74 As low as $133.87Genuine LiftMaster 41A5434-13A full belt assembly for…
LiftMaster 41A5434-14 (041A5434-14A) Belt Assembly for 10 Ft DoorsSKU: 41A5434-14$158.80 As low as $142.92Genuine LiftMaster 041A5434-14A one-piece belt assembly for…
LiftMaster 41A4371 Belt Cap RetainerSKU: 41A4371$9.92 As low as $8.93OEM replacement Belt Cap Retainer for LiftMaster part…
Genie 39354R.S Belt for 7' DoorSKU: 39354R$141.25 As low as $127.13Genuine Genie replacement drive belt, part 39354R.S,…
Genie 37561T.S Belt and Bullet Assembly for 10' Door, C-Channel Belt RailSKU: 37561T.S$148.83 As low as $133.95The genuine Genie 37561T.S is the one-piece belt and bullet…
Chamberlain 41A5250-2 Full Belt Assembly for 10' Garage Door, One-Piece Replacement BeltSKU: 41A5250-2$158.80 As low as $142.92The genuine Chamberlain 41A5250-2 is a one-piece,…
LiftMaster 41B5669 Belt Clip and LinkSKU: 41B5669$12.17 As low as $10.95LiftMaster 41B5669 Belt Clip and Link — OEM replacement…
Genie 37561S.S Belt and Bullet Assembly for 8' Door, C-Channel Belt RailSKU: 37561S.S$129.96 As low as $116.96The genuine Genie 37561S.S is the one-piece belt and bullet…
LiftMaster 41A3589-3 7' Full Belt AssemblySKU: 41A3589-3$138.70 As low as $124.83OEM replacement: LiftMaster 41A3589-3 Full Belt Assembly…
LiftMaster 29B129 Belt ConnectorSKU: 29B129$5.50 As low as $4.95Compatible with LiftMaster garage door openers,…
Find your belt
| Opener brand | Belts and parts |
|---|---|
| LiftMaster / Chamberlain / Craftsman, 2003 on | 41A5434-11A 7', 41A5434-13A 8', 41A5434-14 10' |
| LiftMaster / Chamberlain, before 2003 | 41A3589-3 7', 41A3589-1 8', 41A3589-2 10' |
| Chamberlain one-piece | 41A5250 7', 41A5250-1 8', 41A5250-2 10' |
| LiftMaster belt parts | 41A4371 belt cap retainer, 109B33 trolley belt clip, 29B129 connector, 41B5669 clip and link |
| Genie (C-channel rail) | 37561R.S 7', 37561S.S 8', 37561W.S 9', 37561T.S 10', 37561V.S 14'; 39354R.S 7' |
| Marantec, Linear, Hormann | Marantec 8030278 7', 8030279 8', 8030280 10'; Linear HAE00023 7', HAE00033 8'; Hormann rail repair kits D437347 (7'-8'), D437348 (10'-12') |
How to replace a LiftMaster belt
- Unplug the opener (and disconnect the backup battery). Pull the emergency release and close the door by hand.
- Loosen the outer nut on the trolley's threaded rod, remove the belt cap retainer, and take the belt off the sprocket and trolley.
- Route the new belt around the end pulley and the motor sprocket, ribbed side against them, and hook it into the trolley. Make sure it isn't twisted.
- Tighten until the tension spring measures 1-1/4" (or the line on the spring retainer plate shows).
- Reconnect power and reset the travel limits and force as your owner's manual describes.
Have a chain drive? See chain assemblies. Sprockets: sprockets. Questions? Call 877-379-4947 with your opener model.
Frequently Asked Questions
Which replacement belt fits my LiftMaster opener?
Check the parts list in your manual. In general, LiftMaster and Chamberlain belt drive openers made from 2003 use the 41A5434 belts (20 grooves per 6"), and older ones use the 41A3589 belts (12 grooves per 6"). Order the length for your door height (7', 8' or 10'); belts for different heights aren't interchangeable.
How do I replace a garage door opener belt?
Unplug the opener, pull the emergency release and close the door. Loosen the tension nut on the trolley, remove the belt cap and take the old belt off the sprocket and trolley. Route the new belt with the ribbed side against the pulley and sprocket, hook it into the trolley, set the tension, then reset the travel and force.
How tight should a garage door opener belt be?
On LiftMaster and Chamberlain belts with a spring capsule, tighten until the spring measures 1-1/4". On openers with a spring retainer plate, tighten until the line on the plate shows. A belt that's too loose slaps or slips; too tight wears the sprocket.
