---
product_id: 613162466
title: "Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A"
brand: "kbz"
price: "R1459"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Kbz"
url: https://www.desertcart.co.za/products/613162466-drive-gear-81b0045-for-liftmaster-chamberlain-craftsman-sears-garage-door
store_origin: ZA
region: South Africa
---

# 2.75" diameter fit 0.5" bore size 32 teeth precision gear Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A

**Brand:** kbz
**Price:** R1459
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage opener with precision power — don’t get left behind!

## 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?** R1459 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/613162466-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

- • **Compact & Lightweight:** Only 41g and 3.81cm diameter for easy installation
- • **Universal Compatibility:** Fits all major LiftMaster, Chamberlain, Sears & Craftsman models since 1984
- • **Durable Replacement Part:** Restores your opener’s performance with OEM-grade quality
- • **Future-Proof Your Garage:** Compatible with chain & belt drive openers up to 3/4 HP
- • **Precision Engineered Drive Gear:** 32 teeth for smooth, reliable garage door operation

## Overview

The Drive Gear 81B0045 is a high-quality replacement part compatible with a wide range of LiftMaster, Chamberlain, Sears, and Craftsman garage door openers manufactured from 1984 to present. Featuring a 32-tooth design, 2.75-inch diameter, and 0.5-inch bore size, this durable gear ensures smooth and reliable operation for chain and belt drive models up to 3/4 HP. Lightweight and compact, it’s engineered for easy installation and long-lasting performance.

## 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 |
| Generic Name | Drive Gear 81B0045 for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A |
| Included Components | 1pack drive gear |
| Item Dimensions LxWxH | 38 x 38 x 13 Millimeters |
| Item Weight | 41 g |
| Item model number | 81B0045 |
| Manufacturer | KBZ |
| 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
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-18*