---
product_id: 508008997
title: "Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A"
brand: "kbz"
price: "KSh6848"
currency: KES
in_stock: true
reviews_count: 5
category: "Kbz"
url: https://www.desertcart.co.ke/products/508008997-drive-gear-81b0045-for-liftmaster-chamberlain-craftsman-sears-garage-door
store_origin: KE
region: Kenya
---

# 2.75" diameter fit 1/2" bore size 32 teeth precision gear Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A

**Brand:** kbz
**Price:** KSh6848
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage opener with the gear that keeps your home moving!

## Quick Answers

- **What is this?** Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A by kbz
- **How much does it cost?** KSh6848 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/508008997-drive-gear-81b0045-for-liftmaster-chamberlain-craftsman-sears-garage-door)

## Best For

- kbz enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Performance:** Highly rated by pros and DIYers for restoring garage opener functionality
- • **Durable Construction:** Built to withstand years of heavy-duty chain & belt drive use
- • **Effortless Installation:** Direct replacement with exact bore & diameter specs for a perfect fit
- • **Universal Compatibility:** Fits all major LiftMaster, Chamberlain, Sears & Craftsman models since 1984
- • **Precision Engineered Drive Gear:** 32 teeth for smooth, reliable garage door operation

## Overview

The Drive Gear 81B0045 is a high-precision replacement part compatible with a wide range of LiftMaster, Chamberlain, Sears, and Craftsman garage door openers. Featuring a 32-tooth design, 2.75-inch diameter, and 1/2-inch bore size, it ensures seamless integration and reliable performance for chain and belt drive models manufactured from 1984 to present. Lightweight and easy to install, this gear restores optimal opener function and durability.

## Description

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, 985, 2565, 2575, 2595, 140, 150, 240, 350, 450, 550, 700WHC, 701WHC, 1000, 2000, 4000, 4001, 5000, 710WHC, 711WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, 7420, PD752, PD758S. Compatible with these belt drive models: 1280, 1280R, 2580, 2585, 8100, 8100M, 8200, 9200, WD922K, WD912KS, WD822KS 3918315SR, 13918415SR, 13918616SR, 13918847, 13918857, 13918869, 13918880, 13953100, 139531006, 13953110, 13953200, 139532006, 13953210, 13953225SRT, 13953225SRT1, 13953300, 139533006, 13953310, 13953315SR, 13953325, 13953325SRT, 13953325SRT1, 13953335SRT3, 13953400, 13953403, 13953413, 13953415SR, 13953425, 13953425SRT, 13953425SRT1, 13953500, 139535006, 13953513, 13953515SR, 13953525, 13953525SRT, 13953535SRT1, 13953600, 139536006, 13953602, 13953603, 139536036, 13953605, 13953606, 13953607, 13953608, 13953609, 13953610, 13953611, 13953612, 13953613, 139536141SR, 13953614SR, 139536151SR, 13953615SR, 139536181SR, 13953618SR, 139536191SR, 13953619SR, 13953622, 139536251SR, 13953625SR, 139536261SR, 13953626SR, 13953627SRT, 13953628SRT, 13953628SRT1, 13953629SRT, 13953629SRT1, 13953632SR, 13953635SRT, 13953635SRT1, 13953636SRT, 13953637SRT, 13953637SRT1, 13953638SRT, 13953639SR, 13953640SRT, 13953641SRT, 13953644SRT, 13953645SRT3, 13953646SRT2, 13953647SRT1, 1395364812, 13953648D, 13953648SRT2, 13953650SRT, 13953651SR, 13953660SRT1, 13953661SRT1, 13953661SRT3, 13953662SRT, 13953662SRT1, 13953662SRT2, 13953664SRT, 13953664SRT2, 13953669SRT, 13953670SRT, 13953670SRT1, 13953671SRT, 13953671SRT1, 13953671SRT2, 13953671SRT3, 13953672SRT1. 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, 139.53629SRT1, 139.53674SRT2, 139.18850 and 139.18851. 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 Dalton. Compatible with these belt drive models: 1280, 1280R, 2580, 2585, 8100, 8100M, 8200, 9200, WD922K, WD912KS, WD822KS.

Review: Innenbohrungen ist nicht 12,7 mm sondern 13,00 mm und der Maß zwischen den Spannstiften ist zu klein
Review: This original piece failed (deteriorated) in my old Liftmaster and this replacement part fit perfectly.

## Features

- (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, 985, 2565, 2575, 2595, 140, 150, 240, 350, 450, 550, 700WHC, 701WHC, 1000, 2000, 4000, 4001, 5000, 710WHC, 711WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, 7420, PD752, PD758S.
- 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, 139.53629SRT1, 139.53674SRT2, 139.18850 and 139.18851.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BF5V8PSQ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 810,754 in DIY & Tools ( See Top 100 in DIY & Tools ) 669 in Garage Door Hardware |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (104) |
| Date First Available | 28 Sept. 2022 |
| Included Components | 1pack drive gear |
| Item Weight | 41 g |
| Item model number | 81B0045 |
| Manufacturer | KBZ |
| Part Number | 81B0045 |
| Product Dimensions | 3.81 x 3.81 x 1.27 cm; 41 g |

## Images

![Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 1](https://m.media-amazon.com/images/I/51XaNLHhfWL.jpg)
![Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 2](https://m.media-amazon.com/images/I/61Lv-SFm1JL.jpg)
![Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 3](https://m.media-amazon.com/images/I/51+CrmIMRPL.jpg)
![Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 4](https://m.media-amazon.com/images/I/51CAlrb0KQL.jpg)

## Customer Reviews

### ⭐ Review
*by G***R on 14 September 2025*

Innenbohrungen ist nicht 12,7 mm sondern 13,00 mm und der Maß zwischen den Spannstiften ist zu klein

### ⭐⭐⭐⭐⭐ Review
*by R***K on 24 November 2025*

This original piece failed (deteriorated) in my old Liftmaster and this replacement part fit perfectly.

### ⭐⭐⭐⭐⭐ Review
*by E***W on 7 September 2025*

was a perfect match for the gear that had sheared off in the garage door opener, replaced it and now it works perfectly like a new opener was installed!

## Frequently Bought Together

- Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A
- 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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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-08*