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Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models

Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models

Q: 41ac050-1 will this work?

The part # you are giving is the main board. The sprocket does have a separate part#. You're better off getting the kit in case other parts are broken that you didn't know about. Anyway, the kit doesn't cost much more than just the sprocket. This is used in multiple door openers, very common.

Q: Does this work for model 139.54985

read on the website OR it fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models

Q: Will this kit work with a linear ldo50 garrage door opener?

No it won't Liftmaster/Chamberlain are different manufacturer than the LDO50 which is made by Linear

Q: I have this craftsman motor, and my gear assy is the same, but..mine is belt, not chain. can i just swap the sprocket out ?

I dont think you can the gear and sprocket is one assembly your top is for chain drive not belt it won't come apart from what I saw with my repair.

Product ID: 144242322

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🔧Fits 1/3 & 1/2 HP Chain Drive Models

⚙️Precision Gear & Sprocket Kit

🛠️Complete Installation Tutorial Included

Frequently Bought Together

Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models

HIMARKLIF Upgrade Aluminum Alloy Drive and Worm Gear Kit Compatible with LiftMaster Craftsman Chamberlain Master Mechanic Garage Master Door Opener Access System Replace# 41A2817 41C4220 41C4220A

Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A

Description

⚙️ Upgrade Your Garage Game with Precision & Ease!

DURABLE BUILD - Engineered by TCK TECH for long-lasting performance and reliability under daily use.
ALL IN ONE KIT - Includes gear, sprocket, worm gear, grease, motor shaft & sprocket bearings for a full upgrade.
SEAMLESS COMPATIBILITY - Works flawlessly with Chamberlain, Sears, Craftsman & LiftMaster chain drive openers (1984-current).
EFFORTLESS INSTALLATION - Step-by-step tutorial ensures quick, professional-grade replacement without the hassle.
OPTIMIZED FIT FUNCTION - Specifically designed for 1/3 and 1/2 HP models to restore smooth, quiet operation.

This TCK TECH aftermarket gear and sprocket kit is a comprehensive replacement solution for 1/3 and 1/2 HP chain drive garage door openers by Chamberlain, Sears, Craftsman, and LiftMaster (1984 to present). The kit includes all essential components plus a detailed installation tutorial, ensuring a durable, seamless fit that restores optimal performance and quiet operation.

Specifications

Manufacturer	TCK TECH
Part Number	54101-212542AT
Package Dimensions	15.39 x 11.61 x 11.51 cm; 481 g
Item model number	54101-212542AT
Colour	1
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No
Item Weight	481 g

Have a Question? See What Others Asked

41ac050-1 will this work?

Does this work for model 139.54985

Will this kit work with a linear ldo50 garrage door opener?

I have this craftsman motor, and my gear assy is the same, but..mine is belt, not chain. can i just swap the sprocket out ?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 58.63

Duties & taxes incl.

Croatiastore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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