---
product_id: 733850675
title: "Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models"
brand: "tck tech"
price: "A$13"
currency: AUD
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.au/products/733850675-replaces-liftmaster-41c4220a-gear-and-sprocket-kit-for-chamberlain-sears
store_origin: AU
region: Australia
---

# Fits multiple 1/3 & 1/2 HP chain drive models Precision-engineered gear & sprocket Complete installation kit included Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models

**Brand:** tck tech
**Price:** A$13
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Upgrade your garage game with precision and ease!

## Quick Answers

- **What is this?** Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models by tck tech
- **How much does it cost?** A$13 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/733850675-replaces-liftmaster-41c4220a-gear-and-sprocket-kit-for-chamberlain-sears)

## 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

- • **Durable Build:** High-quality components designed to withstand daily wear and tear
- • **All-in-One Kit:** Includes gear, sprocket, worm gear, grease, and bearings for hassle-free replacement
- • **Lightweight & Compact:** Easy to handle and store with a sleek 431g package
- • **Seamless Compatibility:** Works flawlessly with Chamberlain, Sears, Craftsman & LiftMaster models from 1984+
- • **Step-by-Step Installation:** Comes with a detailed tutorial to get you back on track fast

## Overview

This TCK TECH replacement kit features a precision gear and sprocket set compatible with 1/3 and 1/2 HP chain drive garage door openers from Chamberlain, Sears, Craftsman, and LiftMaster (1984 and newer). The kit includes all necessary parts—worm gear, grease, motor shaft and sprocket bearings—plus an installation tutorial, ensuring a smooth, durable, and professional-grade repair experience.

## Description

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

## Features

- Installation tutorial included
- Kit includes: Gear and sprocket, worm gear, grease, motor shaft bearing, sprocket bearing
- Chain Drive Chamberlain sears craftsman Operators 1984 and up
- Compatible with Chamberlain, Sears, Craftsman, Lift Master 1/3 and 1/2 HP Chain Drive Models, Replacement Parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | TCK TECH |
| Model Number | 54101-212542AT |
| Package Dimensions | 15.49 x 11.81 x 11.71 cm; 431 g |
| Color | 01 |
| Are Batteries Included | No |
| Usage | Insect Control |
| Item Weight | 431 g |

## Images

![Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 1](https://m.media-amazon.com/images/I/71wSbXn2bQL.jpg)
![Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 2](https://m.media-amazon.com/images/I/71WAy1XGXwL.jpg)
![Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 3](https://m.media-amazon.com/images/I/610P0q4TrjL.jpg)
![Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 4](https://m.media-amazon.com/images/I/711mrlsJmZL.jpg)
![Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models - Image 5](https://m.media-amazon.com/images/I/61Ux8MUxxcL.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 May 29, 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。

## Frequently Bought Together

- Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models
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- Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*