---
product_id: 92620807
title: "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: "€ 35.98"
currency: EUR
in_stock: true
category: "Tck Tech"
url: https://www.desertcart.it/products/92620807-replacement-for-liftmaster-41c4220a-gear-and-sprocket-kit-fits-chamberlain
store_origin: IT
region: Italy
---

# Fits multiple 1/3 & 1/2 HP chain drive models Precision-engineered gear & sprocket Complete installation kit included 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:** € 35.98
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage game with precision power!

## Quick Answers

- **What is this?** 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?** € 35.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/92620807-replacement-for-liftmaster-41c4220a-gear-and-sprocket-kit-fits-chamberlain)

## 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:** Crafted by GDR PRO for long-lasting performance under daily use
- • **All-in-One Kit:** Includes gear, sprocket, worm gear, grease, and bearings for a hassle-free upgrade
- • **Lightweight & Compact:** Just over 1 lb and fits easily in your toolkit or garage shelf
- • **Seamless Compatibility:** Works flawlessly with Chamberlain, Sears, Craftsman & LiftMaster models from 1984 to today
- • **Step-by-Step Installation:** Comes with a detailed tutorial to get you back on track fast

## Overview

This GDR PRO replacement gear and sprocket kit is designed for 1/3 and 1/2 HP chain drive garage door openers from Chamberlain, Sears, Craftsman, and LiftMaster (1984-current). The kit includes all essential components—gear, sprocket, worm gear, grease, and bearings—plus an installation tutorial, ensuring a smooth, durable, and professional repair or upgrade.

## Description

desertcart.com: Replacement for Liftmaster 41c4220a Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models : Tools & Home Improvement

## 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 |
|---------------|-------|
| Manufacturer | GDR PRO |
| Part Number | 54101-212542AT |
| Item Weight | 1.06 pounds |
| Package Dimensions | 6.06 x 4.57 x 4.53 inches |
| Item model number | 54101-212542AT |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![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/71wSbXn2bQL.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.

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-01-26*