---
product_id: 504129356
title: "Drive Gear 81B0045 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A"
brand: "kbz"
price: "₱1465"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/504129356-drive-gear-81b0045-replacement-for-liftmaster-chamberlain-craftsman-sears-garage
store_origin: PH
region: Philippines
---

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

**Brand:** kbz
**Price:** ₱1465
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage game with precision power!

## Quick Answers

- **What is this?** Drive Gear 81B0045 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A by kbz
- **How much does it cost?** ₱1465 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/504129356-drive-gear-81b0045-replacement-for-liftmaster-chamberlain-craftsman-sears-garage)

## 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

- • **Durable Build:** Crafted for longevity, compatible with chain & belt drive openers from 1984 to present.
- • **Compact & Lightweight:** Only 1.44 oz and 1.5 x 1.5 x 0.5 inches — easy to install without hassle or heavy lifting.
- • **Precision Engineering:** 32 teeth drive gear with exact 1/2" bore size ensures smooth, reliable garage door operation.
- • **Universal Compatibility:** Fits all major brands like LiftMaster, Chamberlain, Sears & Craftsman for seamless replacement.
- • **Future-Proof Your Garage:** Supports 1/3 HP to 3/4 HP models, keeping your opener running like new for years.

## 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, this lightweight and durable gear fits both chain and belt drive models from 1984 onward, supporting 1/3 to 3/4 HP motors for reliable, long-lasting garage door performance.

## Description

Drive Gear 81B0045 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A

## 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 |
|---------------|-------|
| Manufacturer | KBZ |
| Part Number | 81B0045 |
| Item Weight | 1.44 ounces |
| Product Dimensions | 1.5 x 1.5 x 0.5 inches |
| Item model number | 81B0045 |
| Color | White |
| Included Components | 1pack drive gear |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Drive Gear 81B0045 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 1](https://m.media-amazon.com/images/I/51XaNLHhfWL.jpg)
![Drive Gear 81B0045 Replacement 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 Replacement 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 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 4](https://m.media-amazon.com/images/I/51CAlrb0KQL.jpg)
![Drive Gear 81B0045 Replacement for Liftmaster Chamberlain Craftsman Sears Garage Door Opener 41A2817 41C4220A - Image 5](https://m.media-amazon.com/images/I/51XaNLHhfWL.jpg)

## 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
- HIMARKLIF Upgrade Aluminum Alloy Drive and Worm Gear Kit Compatible with LiftMaster Craftsman Chamberlain Master Mechanic Garage Master Door Opener Access System Replace# 41A2817 41C4220 41C4220A

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-22*