---
product_id: 319001963
title: "LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats"
brand: "seeboo"
price: "NT$1244"
currency: TWD
in_stock: true
reviews_count: 10
category: "Seeboo"
url: https://www.desertcart.tw/products/319001963-ls-harmonic-balancer-installation-tool-crank-pulley-install-tool-551141
store_origin: TW
region: Taiwan
---

# Includes thrust bearing & flange nut 12.9 grade steel strength Fits GM LS & LT engines '97+ LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats

**Brand:** seeboo
**Price:** NT$1244
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your engine game—install like a pro, every time!

## Quick Answers

- **What is this?** LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats by seeboo
- **How much does it cost?** NT$1244 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/319001963-ls-harmonic-balancer-installation-tool-crank-pulley-install-tool-551141)

## Best For

- seeboo enthusiasts

## Why This Product

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

## Key Features

- • **Complete Pro Kit:** Includes stud, washers, thrust bearing, and flange nut—everything you need for a professional-grade install.
- • **Unmatched Durability:** Crafted from premium 35CrMo alloy steel with 12.9 strength grade for long-lasting, rust-proof performance.
- • **Precision Compatibility:** Seamlessly fits all GM LS & LT series engines from 1997 onward, including Camaro, Corvette, and more.
- • **Trusted by Pros & Enthusiasts:** Top-rated tool (#5 in Engine Pulley Tools) with 4.6 stars from 600+ users who swear by its reliability and ease.
- • **Effortless Installation & Removal:** Designed with upgraded wrench flats and thrust bearing for smooth, slip-free pulley installation and easy disassembly.

## Overview

The SEEBOO LS Harmonic Balancer Installation Tool is a heavy-duty, rust-resistant crank pulley installer made from 12.9 grade 35CrMo steel. Compatible with all GM LS and LT engines from 1997 to present, it features wrench flats and a thrust bearing for smooth, slip-free installation and removal. This complete kit includes all necessary components and is highly rated by automotive professionals and enthusiasts alike.

## Description

The package includes: 1 X threaded rod, 1 X thrust bearing, 1 X heightening nut, 2 X washer Material: It is made of high-quality alloy structural steel material 35CrMo, with a strength of 12.9 grade, excellent solidity and durability, and the surface has undergone strict anti-rust treatment. When installing the harmonic balancer, the tool will not break in the crank. Equipped with: harmonic balancer installation tool. Compatible with all GM LS and LT series engines from 1997 to the present (3rd, 4th and 5th generation). You can also search for your matching models through desertcart to purchase. Compatibility: This LS Harmonic balancer is perfect for your Camaro, Corvette, Trans Am, GTO, G8, LS Truck, or LS powered street rod. Simple installation: This tool is long enough, you only need to screw it into the crankshaft and use the nut to push the crankshaft pulley into place. This is necessary to replace the engine or upgrade the balancer (it will be more perfect when used with lubricating oil). Note: The installation tool is not compatible with Gen 2 LT1 5.7 engine (1992-1997). If you have any questions you can contact us in time, we will reply you as soon as possible.

Review: Works great, but needs high pressure grease! - Works great with some high pressure grease, but didn't come with any instructions. Easy enough to figure out. It is one time use on the thrust bearing, maybe that should earn it a 4 star but it's cheap enough to replace the thrust bearing only when needed. Possibly operator error because I used a cheater bar and put some weight on it to make sure the pully was completely set. 5 stars either way and makes install super easy and tool removal is even easier! Threads fit 2011 silverado 2500HD 6.0 perfectly
Review: Ls balancer installer - Great tool , arrived fast and worked perfect. Lubed the outer bore and anti seize inner bore on the balancer and lightly lubed tool threads. Installed tool finger tight , snugged with a 12mm backed off a hair and walked the nut down with a 24mm while holding the tool stud with the 12mm. Walked in no issues, tool felt smooth and sturdy.

## Features

- 【HIGH PERFORMANCE】—The Crank Strength Of The Harmonic Balancer Installation Tool Is 12.9, And It Is Made Of High-Quality 35CrMo Heavy Steel. The Quenching Process Is Modulated To Ensure That It Does Not Affect Long-Term Use. The Surface Is Black And Rust-Proof. There is No Need To Worry About The Wrench Slipping Off During The Installation Process With Customized Flange Nuts!
- 【COMPATIBLE WITH CHEVROLET GM LS & LT SERIES 】—Harmonic Balancer Installation Tool Suitable For Camaro, Corvette, Trans Am, GTO, G8, LS Truck Or LS Power Road Signs. Compatible With All GM LS And LT Series Engines From 1997 To The Present (Third, Fourth And Fifth Generations). You Can Also Search For Matching Models Through desertcart To Purchase!
- 【 INSTALLATION AND REMOVAL 】— Can Be Screwed Completely Into The Crank, Just Slowly Twist The Nut Until The Pulley Is In Place. The Upgraded Wrench Plane Is Convenient For Disassembly Without Worry，This Is Required For Engine Replacement Or Balancer Upgrades. A Little Lubricating Oil Will Make It Smoother When Using!
- 【 PACKAGE INCLUDES ​】— 1*Stud, 2*Washer, 1*Thrust Bearing, 1*Flange Nut
- 【AFTER-SALES SERVICE 】 If You Are Not Satisfied With The Harmonic Balancer Crank Pulley Installation Tool, Please Contact Us, We Will Help You Solve It As Soon As Possible!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08ZYRCNFY |
| Best Sellers Rank | #7,982 in Automotive ( See Top 100 in Automotive ) #5 in Engine Pulley Tools |
| Brand | SEEBOO |
| Customer Reviews | 4.6 4.6 out of 5 stars (683) |
| Date First Available | March 24, 2021 |
| Item Weight | 15.2 ounces |
| Manufacturer | SEEBOO |
| Manufacturer Part Number | SO-003 |
| Package Dimensions | 8.27 x 2.05 x 1.61 inches |

## Images

![LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats - Image 1](https://m.media-amazon.com/images/I/61MQAzFeY7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, but needs high pressure grease!
*by T***N on September 9, 2025*

Works great with some high pressure grease, but didn't come with any instructions. Easy enough to figure out. It is one time use on the thrust bearing, maybe that should earn it a 4 star but it's cheap enough to replace the thrust bearing only when needed. Possibly operator error because I used a cheater bar and put some weight on it to make sure the pully was completely set. 5 stars either way and makes install super easy and tool removal is even easier! Threads fit 2011 silverado 2500HD 6.0 perfectly

### ⭐⭐⭐⭐⭐ Ls balancer installer
*by P***N on September 2, 2025*

Great tool , arrived fast and worked perfect. Lubed the outer bore and anti seize inner bore on the balancer and lightly lubed tool threads. Installed tool finger tight , snugged with a 12mm backed off a hair and walked the nut down with a 24mm while holding the tool stud with the 12mm. Walked in no issues, tool felt smooth and sturdy.

### ⭐⭐⭐⭐⭐ Works Great
*by T***S on December 3, 2025*

This Harmonic Balencer Installation Tool , made installing the harmonic balencer an easy job. A must have tool if you have install the Harmonic Balencer. I'm very happy and pleased with this tool.

## Frequently Bought Together

- SEEBOO LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats
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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-26*