---
product_id: 9154166
title: "Werner Extension Ladder Replacement Pulley Assembly, Kit 31-12"
brand: "werner"
price: "NT$1797"
currency: TWD
in_stock: true
reviews_count: 9
url: https://www.desertcart.tw/products/9154166-werner-extension-ladder-replacement-pulley-assembly-kit-31-12
store_origin: TW
region: Taiwan
---

# Complete hardware kit included Precision-engineered pulley assembly Universal fit for Werner ladders Werner Extension Ladder Replacement Pulley Assembly, Kit 31-12

**Brand:** werner
**Price:** NT$1797
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ladder game with Werner’s ultimate pulley kit — don’t get left hanging!

## Quick Answers

- **What is this?** Werner Extension Ladder Replacement Pulley Assembly, Kit 31-12 by werner
- **How much does it cost?** NT$1797 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/9154166-werner-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, pop rivet, bolt, nut, and clear installation guide
- • **Easy Installation:** Designed for straightforward replacement with common tools like a socket wrench
- • **Seamless Compatibility:** Fits all Werner aluminum & fiberglass extension ladders for effortless upgrades
- • **Trusted Werner Quality:** Backed by a top-rated brand with 4.6-star reviews and proven reliability
- • **Durable Metal Construction:** Robust metal pulley assembly outlasts original plastic parts, built to endure weather exposure

## Overview

The Werner Extension Ladder Replacement Pulley Assembly Kit 31-12 is a precision-engineered, all-inclusive hardware set designed to fit all Werner aluminum and fiberglass extension ladders. Featuring a durable metal pulley assembly and essential mounting components, it ensures a long-lasting, weather-resistant upgrade. Easy to install with standard tools, this kit is trusted by professionals and DIYers alike to restore ladder functionality and safety.

## 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: Great replacement for plastic assembly - This pulley assembly is much better quality than the original pulley which came with my Keller ladder. It was plastic and broke many years ago. I had jury rigged a metal plate over the plastic sleeves which held the roller in place, but it finally gave out this year when we were putting up Christmas lights. I was a little concerned about ordering this as I typically like to see the assembly before I buy, but this is a perfect replacement. It installed easily and will be perfect for the ladder. The ladder is stored on the side of the workshed under the eave, but still gets some exposure to the elements and this metal assembly should last for some time.

## 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 |
| Best Sellers Rank | #1,193,653 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,699 in Ladder Accessories |
| Brand | Werner |
| Brand Name | Werner |
| Color | Silver |
| Customer Reviews | 4.6 out of 5 stars 422 Reviews |
| Included Components | WERNER - 31-12 |
| Item Dimensions | 5 x 3.5 x 2 inches |
| Item Type Name | WERNER - 31-12 |
| Item dimensions L x W x H | 5 x 3.5 x 2 inches |
| Manufacturer | Werner |
| Manufacturer Part Number | FBA_31-12 |
| Model Number | WERNER - 31-12 |
| Number of Pieces | 1 |
| UPC | 051751033151 |
| Unit Count | 1 Count |

## 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

![Werner 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.

### ⭐⭐⭐⭐⭐ Great replacement for plastic assembly
*by C***. on January 1, 2016*

This pulley assembly is much better quality than the original pulley which came with my Keller ladder. It was plastic and broke many years ago. I had jury rigged a metal plate over the plastic sleeves which held the roller in place, but it finally gave out this year when we were putting up Christmas lights. I was a little concerned about ordering this as I typically like to see the assembly before I buy, but this is a perfect replacement. It installed easily and will be perfect for the ladder. The ladder is stored on the side of the workshed under the eave, but still gets some exposure to the elements and this metal assembly should last for some time.

### ⭐⭐⭐⭐ 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 Taiwan*
*Store origin: TW*
*Last updated: 2026-09-21*