A malfunctioning garage door opener can be a significant inconvenience and a security risk. The gears within the opener are critical components that wear down over time. Selecting the correct replacement gears ensures smooth operation and longevity for your garage door system.
- Gear and Sprocket Replacement Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings.
- Compatible with Chamberlain, Sears, Craftsman and Lift Master 1/3 and 1/2 HP chain drive models, replacement parts.
- Compatible with chain drive Chamberlain Sears Craftsman Liftmaster manufactured operators 1984-current.
- Installation: Step-by-step instructions included, free tech support available.
- This kit 041c4220a includes all of the 41A2827 Drive / Worm Gear kit and is easier to install because you do not have to disassemble the output shaft assembly - the spur gear is already mounted on the new output shaft.
- (1pack)drive gear replace part number 81B0045, 41A2817, 41A5021, 41C4220A.
- Compatible With All Chamberlain, Sears ,Liftmaster , Craftsman and Raynor Residential Garage Door Openers.
- Drive Gear Bore Size: 1/2" , Drive Gear Outside Diameter: 2 3/4" , Drive Gear Number of Teeth: 32.
- Compatible LiftMaster, Chamberlain CHAIN DRIVE garage door opener models: 1040, 1045, 1046, 1050, 1055, 1056, 1060, 100WD, 200WD, 300WD, 110WD, 210WD, 310WD, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1246R, 1255R, 1256R...
- Fits For Sears Craftsman models: 139.53990, 139.53992, 139.53914, 139.53985, 139.53930, 139.5365, 139.53964, 139.53646, 139.53660, 139.53920, 139.53939, 139.184050, 139.18803, 139.18805, 139.18814, 139.18830, 139.53603, 139.53629SRT, 139.53629SRT...
- Gear and Sprocket Replacement Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings.
- Compatible with Chamberlain, Sears, Craftsman and LiftMaster 1/3 and 1/2 HP chain drive models.
- Compatible with chain drive Chamberlain Sears Craftsman manufactured operators 1984-current.
- Installation: Step-by-step instructions included, free tech support available.
- This kit 041c4220a includes all of the 41A2827 Drive / Worm Gear kit and is easier to install because you do not have to disassemble the output shaft assembly - the spur gear is already mounted on the new output shaft.
- Includes installation tutorial
- Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings
- Compatible with chain drive chamberlain sears craftsman operators 1984-current
- Compatible with chamberlain, sears, craftsman and lift master 1/3 and 1/2 HP chain drive models, replacement parts
- This is a an aftermarket replacement
- 15-Minute Upgrade, Zero Hassle: Skip complicated disassembly! Our pre-assembled shaft lets you replace gears in 3 steps (tools included) – no professional needed
- Perfect Fit for 40+ Years of Models: Works with 1/3 & 1/2 HP chain drive openers (1984-2024), most standard 1/3 & 1/2 HP chain drive garage door openers
- Industrial-Grade, Noise-Free Operation: Heat-treated steel gears + factory-calibrated sprockets reduce wear & noise by 60% vs. plastic competitors
- Everything in One Kit: Get gears, bearings, grease, a magnetic tray, AND a visual step-by-step manual . Unbox, follow the 3-step diagram, done
- We’ve Got Your Back – Forever: Need help? We’ve got your back 24/7 – today, tomorrow, or years down the road. Your garage deserves worry-free peace of mind
- Gear and Sprocket Replacement Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings
- Compatible with Chamberlain, Sears, Craftsman and LiftMaster 1/3 and 1/2 HP chain drive models
- Compatible with chain drive Chamberlain Sears Craftsman manufactured operators 1984-current
- Installation: Step-by-step instructions included, free tech support available. This replacement kit 041c4220a includes all of the 41A2817 Drive / Worm Gear kit, and is easier to install because you do not have to disassemble the output shaft assembly...
- Our After-Sales Service: lf you are not positive that this is the correct item for you, please contact us through our store front page "Ask a question". If you are unhappy with it for any reason, reach us and we will sort things out for you
- Direct Replacement Kit – Designed to replace worn or broken gear and sprocket assemblies; compatible with part numbers 41A4315-7D and 41C4220A
- Chain Drive Compatibility – Works with popular chain drive garage door opener models including 139.53615SR, 3280, 2265R, and 1245R
- Restores Quiet & Smooth Operation – Eliminates grinding noise, slipping chains, and door movement issues caused by stripped gears
- Heavy-Duty Construction – Manufactured from high-strength, wear-resistant materials to withstand frequent open/close cycles
- OEM-Fit Design – Precision-engineered to match original specifications for proper alignment and reliable long-term performance
- 【Upgrade Aluminum Alloy Material】:The drive and worm gear kit is made of aluminum alloy, which is sturdy, durable, and not easily damaged. Compared with other plastic materials, it greatly increases the wear resistance of the product. CNC processing...
- 【Replace Part Number】:41A2817 / 41C4220 / 41C4220A .
- 【Compatible with Chamberlain】: 1100, 7200, 248735, 48930D, 710WHC, 7920KD, CG40D, HD620EV, PD100, PD200, PD210, PD210D, PD212, PD212D, PD300D, PD610, PD610D, PD612D, PD752CD, PD752CDS, PD612K, PD612KLD, PD6776, PD752, PD752KDS, PD752KLD, PD752KLDS...
- 【Compatible with Craftsman】:3953614SR 139536151SR 13953615SR 139536181SR 13953618SR 139536191SR 13953619SR 139536251SR 13953625SR 139536261SR 13953626SR 13953627SRT 13953622 13953910 13953914 13953954 13953974 13953985 13953995SRT 13953997D...
- 【Compatible with Craftsman】:13953834SRT3 13953901DM 13953903DM 13953904D 13953678SRT 13953699SR 13953608 13953609 13953610 13953611 13953612 13953613 13953976SRT 13953977SRT 13953978SRT 13953982SRT 13953984SRT 13953985D 13953985DM 1395399011 13953990D...
- 【Compatible with LiftMaster】:41A2817 41C4220 41C4220A 1045-9 1050-6 1050-9 1055-253 1055-6 1055-9 1060 1240 1245 1250 1255 1260 325 985 1040 1045 1050 1055 1060-253 1060-6 1060-9 1240R 1245-266 1245LMC 1245LMC-R 1245R 1250-266 1250LMC 1255-266 1255-2R...
- 【Compatible with 】:Compatible with Wayne Dalton 41A2817 41C4220 41C4220A Garage Door Opener Access System; Compatible with Frantz 125-4F 325-4F 525-4F Garage Door Opener Access System; Compatible with Garage Master 140GM 1245GM 1255GM 1245GMR 1255GMR...
- 【Compatible Brand】Drive gear replace 41A2817 41C4220A 81B0045, compatible with Chamberlain, Sears, Liftmaster, Craftsman and Raynor Residential garage door openers.Fits over 170 for Craftsman garage door openers.
- 【Compatible Model】Drive gear compatible with these models: LiftMaster, Chamberlain CHAIN DRIVE garage door opener models: 1040, 1045, 1046, 1050, 1055, 1056, 1060, 100WD, 200WD, 300WD, 110WD, 210WD, 310WD, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD...
- 【Compatible Model】Drive gear compatible with Sears Craftsman models...
- 【Wide Compatible】Works with all 1/3 HP, 1/2 HP and 3/4 HP chain and belt drive garage door openers manufactured from 1984 to the present for these manufacturers: LiftMaster, Sears Craftsman, Chamberlain, Garage Master, Master Mechanic and Wayne...
- 【Package Contents】Drive gear are made of durable quality materials that are sturdy, stable operation.Drive Gear Bore Size: 1/2"; Drive Gear Outside Diameter: 2 3/4"; Drive Gear Number of Teeth: 32. You will receive garage door opener drive gear * 1.If...
- Replacement for Chamberlain 2265R 248730 41AC050-1T / 41AC050-1 41A5021 Opener
- Replacement for Liftmaster 41A5483 2245 3265 3255 1256LM 1345M
- Replacement for Sears Craftsman gears, craftsman and Liftmaster 1/3 and 1/2 HP chain-drive models
- Compatible with: 2245, 2255, 2265, pd210, pd212, pd610, pb2k, 1200 series, 1240, 1245, 1246, 1255, 1256, 1265, 1266, 1266LM
- Please check the model before buy. This aftermarket Bake Unit Heating Element is manufactured to fit the listed models. Non-OEM replacement part. Please contact us if you are not sure if this item will fit your model.
This article is part of our complete guide Tools & Home Improvement — browse all our comparisons and buying guides.
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API