---
product_id: 321690463
title: "TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models"
brand: "tck tech"
price: "€ 69.27"
currency: EUR
in_stock: true
reviews_count: 5
category: "Tck Tech"
url: https://www.desertcart.com.cy/products/321690463-tck-tech-replacement-for-liftmaster-41c4220a-gear-and-sprocket-kit
store_origin: CY
region: Cyprus
---

# Fits 1/3 & 1/2 HP Chain Drive Models Precision Gear & Sprocket Kit Complete Installation Tutorial Included TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models

**Brand:** tck tech
**Price:** € 69.27
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage game — don’t get left behind!

## Quick Answers

- **What is this?** TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models by tck tech
- **How much does it cost?** € 69.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/321690463-tck-tech-replacement-for-liftmaster-41c4220a-gear-and-sprocket-kit)

## Best For

- tck tech enthusiasts

## Why This Product

- Trusted tck tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Friendly:** Step-by-step installation tutorial ensures you’re back in control without calling a pro.
- • **All-in-One Kit:** Includes gear, sprocket, worm gear, grease, and bearings for a hassle-free replacement experience.
- • **Trusted by Thousands:** Rated 4.7 stars by over 7,800 users who upgraded their garage opener performance.
- • **Seamless Compatibility:** Engineered to fit Chamberlain, Sears, Craftsman & LiftMaster chain drive openers from 1984 to today.
- • **Durability Meets Precision:** High-quality components designed to restore smooth, reliable garage door operation.

## Overview

The TCK TECH Replacement Gear and Sprocket Kit is a precision-engineered solution compatible with 1/3 and 1/2 HP chain drive garage door openers from Chamberlain, Sears, Craftsman, and LiftMaster (1984-current). This all-inclusive kit features gears, sprockets, worm gear, grease, and bearings, plus an easy-to-follow installation tutorial, delivering a durable and reliable upgrade trusted by thousands of satisfied customers.

## Description

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

Review: 到着に時間がかかる。 - 予定到着日より１０日以上遅れて到着しましたが、無事配送されました。 取り付けのねじ部がタップが切られていませんでした。 なお、ネジはインチネジ （元と同じですが）でISO規格ではないので注意が必要。
Review: Right fit - Everything worked out. Repair was easy and parts for as they should.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H4XYNPS |
| ASIN  | B07H4XYNPS |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | 1 |
| Customer Reviews | 4.7 4.7 out of 5 stars (7,848) |
| Customer reviews | 4.7 4.7 out of 5 stars (7,848) |
| Date First Available | 3 October 2018 |
| Date First Available  | 3 October 2018 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 481 g |
| Item model number | 54101-212542AT |
| Item model number  | 54101-212542AT |
| Manufacturer | TCK TECH |
| Manufacturer  | TCK TECH |
| Package Dimensions | 15.39 x 11.61 x 11.51 cm; 481 g |
| Package Dimensions  | 15.39 x 11.61 x 11.51 cm; 481 g |
| Part number | 54101-212542AT |
| Size | 1 |

## Images

![TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 1](https://m.media-amazon.com/images/I/71kM7tVhJ4L.jpg)
![TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 2](https://m.media-amazon.com/images/I/81vu4uBoLbL.jpg)
![TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 3](https://m.media-amazon.com/images/I/81spIoeEpML.jpg)
![TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 4](https://m.media-amazon.com/images/I/71S3ETs5ZgL.jpg)
![TCK TECH Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 5](https://m.media-amazon.com/images/I/81cn1WzORqL.jpg)

## Questions & Answers

**Q: 41ac050-1 will this work?**
A: 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**
A: 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?**
A: 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 ?**
A: 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.

## Customer Reviews

### ⭐⭐⭐ 到着に時間がかかる。
*by 高***澤 on 29 May 2025*

予定到着日より１０日以上遅れて到着しましたが、無事配送されました。 取り付けのねじ部がタップが切られていませんでした。 なお、ネジはインチネジ （元と同じですが）でISO規格ではないので注意が必要。

### ⭐⭐⭐⭐⭐ Right fit
*by V***E on 19 August 2020*

Everything worked out. Repair was easy and parts for as they should.

### ⭐⭐⭐⭐⭐ Keep Craftman garage door opener alive if motor still working but internal plastic gear stripped.
*by H***A on 30 July 2026*

Product comes with extra washers, helical gear, lubricant, cotter pins, in addition to main gear already mounted. No instructions included. A QR code printed on paper insert indicates that instructions available, however, it only brought up a website for garage door remotes. No instructions on product installation. On line videos on Google or U-tube is best option on installation. This not a drop in part and is more involved than suggested. Garage door opener was a legacy Craftman manufactured in 1991. Maybe newer models have simpler internal orientation, and their repair may be easier. Take into account drive chain needs to be taken off sprocket so give chain lots of slack before starting. 5/16 bolts x3 secure mounting plate to housing and need to be approached from within the opener(an articulating 1/4" socket wrench with extension helps). The mounting plate holes for these bolts need to be chased first with original bolts or threaded with tap and die otherwise it is almost impossible to screw in the bolts unless whole unit is on a backtable. That said, gearing fit perfectly in this aged opener and worked well on final assembly. Lubricate gears liberally before replacing cover back on. Make sure door travel is adjusted before put back in regular service. Quiet operation.

## Frequently Bought Together

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-08-19*