---
product_id: 9154166
title: "Extension Ladder Replacement Pulley Assembly, Kit 31-12"
brand: "werner"
price: "R719"
currency: ZAR
in_stock: true
reviews_count: 9
category: "Werner"
url: https://www.desertcart.co.za/products/9154166-extension-ladder-replacement-pulley-assembly-kit-31-12
store_origin: ZA
region: South Africa
---

# Compact 5 x 3.5 x 2 inch dimensions for easy installation Complete kit with pulley, rung bracket & hardware Universal fit for all Werner Aluminum & Fiberglass ladders Extension Ladder Replacement Pulley Assembly, Kit 31-12

**Brand:** werner
**Price:** R719
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your ladder game with Werner’s precision pulley kit—because every climb deserves smooth moves!

## Quick Answers

- **What is this?** Extension Ladder Replacement Pulley Assembly, Kit 31-12 by werner
- **How much does it cost?** R719 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/9154166-extension-ladder-replacement-pulley-assembly-kit-31-12)

## Best For

- werner enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Kit:** Includes pulley assembly, rung bracket, rivet, bolt, nut & instructions—no extra parts needed
- • **Precision Engineering:** Durable aluminum pulley ensures smooth, reliable ladder extension
- • **Seamless Compatibility:** Fits every Werner extension ladder for hassle-free upgrades
- • **Trusted Werner Quality:** Backed by a 4.6-star rating and industry-leading ladder accessory expertise
- • **Effortless Installation:** Designed for quick replacement with standard tools like a 7/16" socket wrench

## Overview

The Werner Extension Ladder Replacement Pulley Assembly Kit 31-12 is a precision-engineered, all-inclusive replacement kit designed to fit all Werner aluminum and fiberglass extension ladders. Featuring a durable pulley assembly, rung bracket, and all necessary hardware, it ensures smooth ladder operation and easy installation with common tools. Trusted by professionals and DIYers alike, this compact kit delivers reliable performance and extends the life of your ladder.

## Description

Fits all WERNER brand Aluminum & Fiberglass Extension Ladders. Kit includes pulley assembly, rung bracket, pop rivet, bolt, nut, and installation instructions. Werner Kit #31-12.

Review: Use a Socket Wrench to Install - So, my old 24' extension ladder (by manufacturer unknown) needed a new pully assembly (and rope). To install, a machine screw (included) goes through one end of the (bendable) rung bracket, through the pully (wheel) assembly, and out the other end of the rung bracket. Then a lock nut goes on the bottom end of the machine screw to hold everything in place. As I learned, a lock nut has to be fastened with a wrench, in this case a socket wrench, or it won't travel onto the screw; it gets locked onto the screw when it's tightened. My typical wrench didn't tighten the lock nut tight enough; so a socket wrench was used and it fastened the lock nut tighter, or farther up the machine screw. The instructions say to use a 7/16" wrench, so I assume we (my neighbor the mechanic did this for me) used a 7/16" socket wrench. The instructions also say to fasten the rung bracket to the rung with the included rivet---we did not do that. Perhaps I will find another way to affix the rung bracket to the rung, but it is not necessary. My old pully assembly was not fastened to the rung. By the way, instructions say to remove the old pully with a chisel and hammer. That didn't work either. We needed a sawzall tool to remove it. My ladder was already put away, hung on the inside of my garage door, so that's why the pully is sideways in the photos. Also, my rung is slightly less than 5" in diameter. I also bought the Werner Extention Ladder Replacement Rope, AC30-2, and worked nicely. I used a candle to melt the ends to prevent the ends from fraying.
Review: Does what it's suppose to do. - Will buy another for my other ladder when needed

## Features

- Fits all WERNER brand Aluminum & Fiberglass Extension Ladders
- Kit includes pulley assembly, rung bracket, pop rivet, bolt, nut, and installation instructions
- Werner Kit #31-12

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003DQ7FDS |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #923,657 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,214 in Ladder Accessories |
| Brand | Werner |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (422) |
| Date First Available | March 1, 2013 |
| Included Components | WERNER - 31-12 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.98 ounces |
| Item dimensions L x W x H | 5 x 3.5 x 2 inches |
| Item model number | WERNER - 31-12 |
| Manufacturer | Werner |
| Number of Pieces | 1 |
| Part Number | FBA_31-12 |
| Product Dimensions | 5 x 3.5 x 2 inches |
| UPC | 051751033151 |

## Product Details

- **Brand:** Werner
- **Color:** Silver
- **Included Components:** WERNER - 31-12
- **Item dimensions L x W x H:** 5 x 3.5 x 2 inches
- **Number of Pieces:** 1

## Images

![Extension Ladder Replacement Pulley Assembly, Kit 31-12 - Image 1](https://m.media-amazon.com/images/I/31TK36Fx7dL.jpg)

## Questions & Answers

**Q: Does the rope come with it**
A: Rope does not come with kit.

**Q: Are the Keller extension ladder rungs the same diameter as a Werner to where I can purchase a new rope pulley and have it work without modification?**
A: It is likely that you will be able to use the replacement pulley on your Keller ladder, but not 100% sure.  It is the same part for all Werner Ladders.  The Amazon part # B00JAGEE9S is a Werner Rope and Pulley kit.

**Q: Will this work on an old aluminum ladder that never had a prior pulley assembly?**
A: If it's an extension ladder and you need to replace the pulley wheel it should work. Replaced the pulley wheel on mine because the nylon wheel wore out. This pulley works fine on my extension ladder.

**Q: what thickness of rope does this take?  5/16, 7/16, or 3/8**
A: They say 6/16.  But im sure slightly larger work also, because there is enough room for 7/16 and 3/8 is still enough contact to move the wheel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Use a Socket Wrench to Install
*by S***N on August 29, 2020*

So, my old 24' extension ladder (by manufacturer unknown) needed a new pully assembly (and rope). To install, a machine screw (included) goes through one end of the (bendable) rung bracket, through the pully (wheel) assembly, and out the other end of the rung bracket. Then a lock nut goes on the bottom end of the machine screw to hold everything in place. As I learned, a lock nut has to be fastened with a wrench, in this case a socket wrench, or it won't travel onto the screw; it gets locked onto the screw when it's tightened. My typical wrench didn't tighten the lock nut tight enough; so a socket wrench was used and it fastened the lock nut tighter, or farther up the machine screw. The instructions say to use a 7/16" wrench, so I assume we (my neighbor the mechanic did this for me) used a 7/16" socket wrench. The instructions also say to fasten the rung bracket to the rung with the included rivet---we did not do that. Perhaps I will find another way to affix the rung bracket to the rung, but it is not necessary. My old pully assembly was not fastened to the rung. By the way, instructions say to remove the old pully with a chisel and hammer. That didn't work either. We needed a sawzall tool to remove it. My ladder was already put away, hung on the inside of my garage door, so that's why the pully is sideways in the photos. Also, my rung is slightly less than 5" in diameter. I also bought the Werner Extention Ladder Replacement Rope, AC30-2, and worked nicely. I used a candle to melt the ends to prevent the ends from fraying.

### ⭐⭐⭐⭐⭐ Does what it's suppose to do.
*by M***G on October 11, 2024*

Will buy another for my other ladder when needed

### ⭐⭐⭐⭐ Good quality repair kit
*by R***B on February 21, 2019*

A very high quality kit for extension ladder repair. My ladder is not a Werner, but this kit worked fine to replace the broken pulley assembly. This pulley is much better quality than my original. I gave it only 4 stars as the locknut was missing in my kit. I had a replacement in my 'spare parts' bin, but it was annoying that it was not included.

## Frequently Bought Together

- Werner Extension Ladder Replacement Pulley Assembly, Kit 31-12
- Werner Aluminum Extension Ladder Locks - Model 28-11
- Werner AC30-2 Extension Ladder Replacement Rope

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-05-13*