---
product_id: 477980344
title: "Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56"
brand: "rapartsinc"
price: "¥3925"
currency: JPY
in_stock: true
category: "Ra Partsinc"
url: https://www.desertcart.jp/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56
store_origin: JP
region: Japan
---

# 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:** ¥3925
**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?** ¥3925 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

## 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 |
|---------------|-------|
| ASIN | B078NZLB58 |
| Are batteries included? | No |
| Brand | RAPartsinc |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (111) |
| Date First Available | 9 January 2020 |
| Item Dimensions LxWxH | 12.7 x 12.7 x 12.7 Centimeters |
| Item Height | 5 Inches |
| Item Weight | 18.1 g |
| Item Width | 5 Inches |
| Item model number | OTK20-0406 |
| Manufacturer | Aftermarket Liftmaster, Chamberlain, Sears |
| Model number | OTK20-0406 |
| Number of Memory Sticks | 1 |
| Product Dimensions | 12.7 x 12.7 x 12.7 cm; 18.14 g |

## Images

![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 1](https://m.media-amazon.com/images/I/41I94mFS0wL.jpg)
![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 2](https://m.media-amazon.com/images/I/31hPE2WPdsL.jpg)
![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 3](https://m.media-amazon.com/images/I/51a0-rkHsuL.jpg)
![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 4](https://m.media-amazon.com/images/I/51RoZP2s0cL.jpg)
![Replaces LiftMaster, Chamberlain, Craftsman, Square Rail Idler Pulley # 144C56 - Image 5](https://m.media-amazon.com/images/I/513uSEpQR+L.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## 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.jp/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56](https://www.desertcart.jp/products/477980344-replaces-liftmaster-chamberlain-craftsman-square-rail-idler-pulley-144c56)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-18*