---
product_id: 477980344
title: "Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56"
brand: "rapartsinc"
price: "87.44 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Ra Partsinc"
url: https://www.desertcart.tn/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56
store_origin: TN
region: Tunisia
---

# Compact 2 7/16" overall diameter Smooth 1/4" pulley width Precision 1/2" mounting hole Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56

**Brand:** rapartsinc
**Price:** 87.44 DT
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your garage game with precision and reliability!

## Quick Answers

- **What is this?** Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 by rapartsinc
- **How much does it cost?** 87.44 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56)

## Best For

- rapartsinc enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Yet Strong:** Only 18.1g for easy installation without compromising strength
- • **Universal White Finish:** Clean, neutral color blends with any garage door setup
- • **Precision Fit & Function:** Exact 1 3/16" radius ensures flawless square rail assembly integration
- • **Engineered for Durability:** Robust aftermarket design built to last through countless cycles
- • **Seamless OEM Compatibility:** Effortlessly replaces LiftMaster, Chamberlain & Craftsman #144C56

## Overview

This RAPartsinc aftermarket front idler pulley is a direct replacement for LiftMaster, Chamberlain, and Craftsman square rail assemblies (OEM #144C56). Featuring a 1/2" mounting hole, 1 3/16" radius, and 1/4" pulley width, it offers a precise fit and smooth operation. Lightweight at just 18.1g with a clean white finish, it ensures durable, hassle-free garage door performance.

## Description

New Aftermarket Garage Door Idler PulleyAll OEM part numbers and logos are to be used for identification purposes only

Review: Just like original - Worked perfect, exact replacement for my Chamberlain opener with cog belt.
Review: Exactly as described - The idler pulley fit perfectly on the Craftsman Garage Door Opener. The original pulley had cracked and allowed the cable to slide off creating slack in the line which resulted in an incomplete closure. The pulley was an exact fit for the bolt and twisted wire cable.

## Features

- Front idler cable pulley for square rail assemblies
- Radius: 1 3/16" -- Hole: 1/2" -- Width (Pulley) 1/4"
- Overall round size: 2 7/16"
- Replaces Original Manufacturer Numbers: 144C56

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | RAPartsinc |
| Manufacturer | Aftermarket Liftmaster, Chamberlain, Sears |
| Model number | OTK20-0406 |
| Colour | White |
| Number of Memory Sticks | 1 |
| Item Weight | 18.1 g |
| Product Dimensions | 12.7 x 12.7 x 12.7 cm; 18.14 g |
| Item model number | OTK20-0406 |
| Item Height | 5 Inches |
| Item Width | 5 Inches |
| Are batteries included? | No |

## Images

![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 1](https://m.media-amazon.com/images/I/51HOUjonBxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just like original
*by M***R on 5 June 2024*

Worked perfect, exact replacement for my Chamberlain opener with cog belt.

### ⭐⭐⭐⭐⭐ Exactly as described
*by R***C on 29 August 2024*

The idler pulley fit perfectly on the Craftsman Garage Door Opener. The original pulley had cracked and allowed the cable to slide off creating slack in the line which resulted in an incomplete closure. The pulley was an exact fit for the bolt and twisted wire cable.

### ⭐⭐⭐⭐⭐ Fit my garage door!
*by W***Y on 16 January 2023*

It was easy to install, fit the garage door idler track (with existing hardware), and has proven effective for my garage door all day.

## Frequently Bought Together

- 144C56 Garage Door Idler Pulley Made to Fit LiftMaster, Chamberlain, and Craftsman (Square-Rail Garage Door Models)
- LIFTMASTER Garage Door Openers 41A5615 Chain Spreader for Sears
- LIFTMASTER Garage Door Openers 144C56 Chain Cable Idler Pulley, Black

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**Shop now:** [https://www.desertcart.tn/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56](https://www.desertcart.tn/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-30*