Garage Door Opener Rail Parts & Extensions

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Replacement garage door opener rail parts for LiftMaster, Chamberlain, Genie, Marantec, Sommer, Linear and Hormann: belt caps, tensioners, chain spreaders, bullets, rail clamps, wire clips, complete rails and rail extension kits.
Find your brand in the guide below the products.
- LiftMaster 197LM Wire Channel for T-Rail, 5 ft (Replaces 27LM)SKU: 197LM$5.98 As low as $5.38Genuine LiftMaster 197LM wire channel. The plastic strip…
- Clevis Pin 5/16" x 1" for Garage Door Opener Brackets (Sold Each)SKU: 797$0.33 As low as $0.26Replacement 5/16 in x 1 in clevis pin for garage door…
- Marantec 96834 Belt Rail Reference Tab Kit (Position Tab Replacement)SKU: 96834$8.03 As low as $7.23Genuine Marantec 96834 replacement position (reference) tab…
- Linear HAE00019 Wire Clips for Garage Door Opener Rail (10 Pack)SKU: HAE00019X10$4.82 As low as $4.34Genuine Linear HAE00019 plastic wire clips that hold the…
- Genie 37857R.S Tensioner Assembly with Pulley for Belt and Chain Drive OpenersSKU: 37857R.S$16.43 As low as $14.79Genuine Genie 37857R.S tensioner assembly with pulley: the…
- Chamberlain 41A7276 Square Rail Trolley Wear Pads, Set of 4SKU: 41A7276$7.42 As low as $6.68Genuine Chamberlain 41A7276 trolley wear pads: the four…
- Marantec 106141 Shaft Adapter for Belt and Chain Standard RailsSKU: 106141$7.80 As low as $7.02Genuine Marantec 106141 shaft adapter: the small part that…
- Marantec 187536 2-Piece Belt Rail Assembly for 8 ft Garage DoorsSKU: 187536$102.30 As low as $92.07Genuine Marantec 187536 two-piece belt rail for 8 ft tall…
- Genie 19807A04 Retaining Clip for Genie Screw Drive OpenersSKU: 19807A04$2.22 As low as $2.00Genuine Genie 19807A04 retaining clip (19807A04.S). Genie…
- Marantec 98875 Chain Rail Position (Reference) Tab ReplacementSKU: 98875$8.03 As low as $7.23Genuine Marantec 98875 replacement position (reference) tab…
- Marantec 187533 2-Piece Belt Rail Assembly for 7 ft Garage DoorsSKU: 187533$82.57 As low as $74.31Genuine Marantec 187533 two-piece belt rail for 7 ft tall…
- LiftMaster 4A1008 Master Link Kit for #48 Opener Chain (2 Links)SKU: 4A1008$8.09 As low as $7.28Genuine LiftMaster 4A1008 (004A1008) master link kit for…
- Genie 19806A04 Collar for Screw Drive RailSKU: 19806A04$2.22 As low as $2.00Genuine Genie 19806A04 collar for Genie screw drive…
- Marantec 8030196 Belt Connector Kit for Marantec Belt Drive RailsSKU: 8030196$11.36 As low as $10.22Genuine Marantec 8030196 two-piece belt connector. It joins…
- Genie 35372A.S Carriage Stop for Genie Screw Drive OpenersSKU: 35372A.S$3.82 As low as $3.44Genuine Genie 35372A.S carriage stop for Genie screw drive…
- Sommer US3123 Side Mount Kit (3123V000) for Sommer Direct Drive OpenersSKU: 3123V000$90.86 As low as $81.77Genuine Sommer US3123 side mount kit (3123V000). Lets you…
- LiftMaster 041A4208-2 Chain Spreader Kit for Chain Drive Garage Door OpenersSKU: 41A4208-2$13.82 As low as $12.44The genuine LiftMaster 041A4208-2 is the chain spreader kit…
- LiftMaster 41A4371 Belt Cap Retainer Kit (041A4371)SKU: 41A4371$9.92 As low as $8.93Genuine LiftMaster 041A4371 belt cap retainer with…
- Marantec 196669 (104455) Rail Bumper Kit for Synergy OpenersSKU: 196669$14.67 As low as $13.20Special OrderWhat does this mean?Genuine Marantec 196669 (also sold as 104455): the rail…
- Sommer 187 Slide-In Part with Contact (Synoris & Direct Drive Rail)SKU: 187$24.49 As low as $22.04Drop ShipWhat does this mean?Genuine Sommer slide-in part with contact, part 187, for…
Rail parts by brand
| Brand | Rail parts |
|---|---|
| LiftMaster / Chamberlain | Belt drive: 41C76 belt cap and sprocket, 41A4371 belt cap retainer, 41B4103 belt tensioner, 29B130 belt connector. Chain drive: 41A4208-2 and 41A5615 chain spreader kits, 4A1008 master link. Square rail: 41A5665 rail, 41A7276 wear pads, 41D598-1 U bracket. Also 041A6550 rail clips, 197LM wire channel |
| Genie | Rail extension kits for 8' doors: EKCC chain, EKBC belt, EKSC screw. Bullets 37557R.S (chain) and 37556R.S (belt), 37857R.S tensioner, 37844R.S bearing block, 21019B04 rail clamp |
| Marantec | 2-piece rails for 7', 8', 10', 12' and 14' doors; 8030196 belt connector kit, 96834 / 98875 tabs |
| Sommer | Rail extensions 9'9" and 11'6", 3' and 5'; US3123 side mount kit, ceiling brackets |
| Linear / Hormann | Linear HAE00019 wire clips, CSB center support; Hormann D436255 center support |
Raising a door from 7' to 8'?
Many openers need a rail extension for an 8' door. Genie sells separate kits for chain, belt and screw drive rails (37301R, 37302R, 37303R). Rail length is based on door height, so check your opener's manual for the exact rail or extension kit.
Looking for the trolley? See carriages. Need a chain or belt? See chains and belts. Call 877-379-4947 with your opener model.
Frequently Asked Questions
What is the trolley on a garage door opener?
The trolley (Genie calls it the carriage) rides along the opener rail and connects to the door arm. Pulling the emergency release handle disconnects the outer trolley from the inner trolley, so you can move the door by hand; it re-engages when the opener runs.
























