---
product_id: 3275704
title: "Lisle 22100 Flywheel Locking Tool for 6.6L Duramax"
brand: "lisle"
price: "R1266"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Lisle"
url: https://www.desertcart.co.za/products/3275704-lisle-22100-flywheel-locking-tool-for-6-6l-duramax
store_origin: ZA
region: South Africa
---

# Fits 36mm 12-point socket & 3/4" drive Specifically engineered for 6.6L Duramax Saves time on water pump replacement Lisle 22100 Flywheel Locking Tool for 6.6L Duramax

**Brand:** lisle
**Price:** R1266
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock your Duramax in place and never miss a beat!

## Quick Answers

- **What is this?** Lisle 22100 Flywheel Locking Tool for 6.6L Duramax by lisle
- **How much does it cost?** R1266 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/3275704-lisle-22100-flywheel-locking-tool-for-6-6l-duramax)

## Best For

- lisle enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** Designed exclusively for 6.6L Duramax engines with Allison automatic transmissions for perfect engagement.
- • **Trusted by Pros:** Highly rated with 4.8 stars from over 1,190 users who swear by its reliability and time-saving power.
- • **Compact & Durable:** Compact 4x3x3 inch design built to withstand tough engine bay conditions without breaking.
- • **Lock & Load Efficiency:** Securely locks flywheel to speed up harmonic balancer removal without starter removal hassle.
- • **Heavy-Duty Compatibility:** Works seamlessly with 36mm 12-point sockets and 3/4" square drives, handling over 300 ft-lbs torque.

## Overview

The Lisle 22100 Flywheel Locking Tool is a precision-engineered, compact device designed to lock the flywheel on 6.6L Duramax engines with Allison automatic transmissions. It streamlines harmonic balancer removal and reinstallation by eliminating the need to remove the starter, saving valuable time during water pump replacements. Compatible with 36mm 12-point sockets and 3/4" square drives, it withstands high torque demands and is trusted by thousands of professional and DIY mechanics alike.

## Description

Locks Flywheel in Place When Removing Harmonic Balancer on 6.6L Duramax Engines with Allison Automatic Transmissions.Saves time by locking the flywheel at the transmission instead of having to remove the starter for water pump replacement. On 2500 and 3500 pickups, remove metal spring-loaded inspection plate on the bottom of the transmission. Tool should slide into opening toward engine with the top of the tool engaging the teeth of the flywheel. On 4500 and 5500 trucks, remove the rubber inspection cap on the bottom of the transmission. Insert the tool at the front of the opening to engage the flywheel and hand tighten bolt to hold tool in place. Use 36mm 12 point socket with 3/4" square drive to remove harmonic balancer bolt and re-torque on installation. 36mm 12 point socket can also be used on axle nuts.

Review: Got the dreaded job done - I wasn't sure because it was so cheap, but I needed this part and had already spent enough on the water pump. Way easier and faster than the engine crank method. The flywheel lock tool and socket did not break and got the horrible job done. It made it a little easier without risking any damage. I highly recommend this if you are changing your own water pump on a duramax. This was perfect for my LBZ.
Review: Cheap and required to remove a crank balancer... - Used this for my LBZ Duramax so that I could lock the engine in order to remove the harmonic balancer. Due to the heavy torque on the balancer (>300 ft lbs) I had to use a 3/4" breaker bar that was over 5 feet long. This tool held the engine from turning so that I could remove the bolt, and then held it again so that I could torque the new bolt back on when done with the other work.

## Features

- Locks flywheel in place when removing harmonic balancer on 6.6L Duramax engines with Allison automatic transmissions
- Saves time by locking the flywheel at the transmission instead of having to remove the starter for water pump replacement
- Use 36mm 12-point socket with 3/4 square drive to remove harmonic balancer bolt and retorque on installation
- Package dimension is 4.5 inches width by 5 inches height by 2 inches depth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002MCVPOO |
| Best Sellers Rank | #36,858 in Automotive ( See Top 100 in Automotive ) #14 in Engine Flywheel Tools |
| Brand | Lisle |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,190) |
| Date First Available | July 7, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.45 pounds |
| Item model number | 22100 |
| Manufacturer | Lisle |
| Manufacturer Part Number | 22100 |
| Model | Lisle 22100 Flywheel Locking Tool for 6.6L Duramax |
| OEM Part Number | 22100 |
| Position | Center |
| Product Dimensions | 4 x 3 x 3 inches |

## Images

![Lisle 22100 Flywheel Locking Tool for 6.6L Duramax - Image 1](https://m.media-amazon.com/images/I/71-PZscOXnL.jpg)
![Lisle 22100 Flywheel Locking Tool for 6.6L Duramax - Image 2](https://m.media-amazon.com/images/I/71xHLVny5KL.jpg)
![Lisle 22100 Flywheel Locking Tool for 6.6L Duramax - Image 3](https://m.media-amazon.com/images/I/81eji6-rBAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Got the dreaded job done
*by J***S on June 17, 2022*

I wasn't sure because it was so cheap, but I needed this part and had already spent enough on the water pump. Way easier and faster than the engine crank method. The flywheel lock tool and socket did not break and got the horrible job done. It made it a little easier without risking any damage. I highly recommend this if you are changing your own water pump on a duramax. This was perfect for my LBZ.

### ⭐⭐⭐⭐⭐ Cheap and required to remove a crank balancer...
*by D***N on February 27, 2024*

Used this for my LBZ Duramax so that I could lock the engine in order to remove the harmonic balancer. Due to the heavy torque on the balancer (>300 ft lbs) I had to use a 3/4" breaker bar that was over 5 feet long. This tool held the engine from turning so that I could remove the bolt, and then held it again so that I could torque the new bolt back on when done with the other work.

### ⭐⭐⭐⭐⭐ Good tool. Worth the money.
*by E***C on February 14, 2021*

Makes changing the water pump on your Duramax a lot easier!! It comes with 2 flywheel holding pieces. One for 3/4 and 1 ton models. And another one for bigger models. The socket works great. I would also recommend getting the fan pulley holding tool for changing out the water pump. Makes the job a lot easier.

## Frequently Bought Together

- Lisle 22100 Flywheel Locking Tool for 6.6L Duramax
- ARP 129-2503 Dampener Bolt (GM Durmax)
- FEL-PRO ES 71347 Water Pump Mounting Set

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**Shop now:** [https://www.desertcart.co.za/products/3275704-lisle-22100-flywheel-locking-tool-for-6-6l-duramax](https://www.desertcart.co.za/products/3275704-lisle-22100-flywheel-locking-tool-for-6-6l-duramax)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-15*