---
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: "₪97"
currency: ILS
in_stock: true
reviews_count: 10
category: "Seeboo"
url: https://www.desertcart.co.il/products/319001963-ls-harmonic-balancer-installation-tool-crank-pulley-install-tool-551141
store_origin: IL
region: Israel
---

# Includes Thrust Bearing & Wrench Flats 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:** ₪97
**Availability:** ✅ In Stock

## Summary

> 🛠️ The ultimate GM LS pulley install tool that means business—don’t get left behind!

## 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?** ₪97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/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:** Engineered to flawlessly fit all GM LS & LT series engines from 1997 onward, including Camaro, Corvette, and more.
- • **Trusted by Pros & DIYers:** Highly rated with 4.6 stars and praised for saving time and money compared to rental kits that don’t fit.
- • **Effortless Installation & Removal:** Custom flange nuts and upgraded wrench flats ensure slip-free, smooth pulley installation and quick disassembly.

## Overview

The LS Harmonic Balancer Installation Tool is a heavy-duty, rust-resistant 35CrMo steel kit designed for seamless installation and removal of harmonic balancers on all GM LS and LT engines from 1997 to present. Featuring a 12.9 strength rating, custom flange nuts, and included thrust bearing, this tool guarantees precision fit and durability, making it a must-have for professional mechanics and serious enthusiasts upgrading or replacing crank pulleys.

## 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: Awesome price and works like a charm. - $65 -$100 dollars to maybe rent a kit from auto part store.. only to get home and realize it doesn't work for your car!!!! Happened 3 times before I found this tool. 2007 gm sierra classic v vin 4.8L. Super simple use. 1 minute after opening box the harmonic balancer was re installed with no fuss. Great price, great quality, perfect fit, and I didn't have to argue with the high schoolers at parts house.
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

## 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 | #16,704 in Automotive ( See Top 100 in Automotive ) #8 in Engine Pulley Tools |
| Brand | SEEBOO |
| Customer Reviews | 4.6 4.6 out of 5 stars (692) |
| 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

### ⭐⭐⭐⭐⭐ Awesome price and works like a charm.
*by J***. on January 25, 2026*

$65 -$100 dollars to maybe rent a kit from auto part store.. only to get home and realize it doesn't work for your car!!!! Happened 3 times before I found this tool. 2007 gm sierra classic v vin 4.8L. Super simple use. 1 minute after opening box the harmonic balancer was re installed with no fuss. Great price, great quality, perfect fit, and I didn't have to argue with the high schoolers at parts house.

### ⭐⭐⭐⭐⭐ 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

### ⭐⭐⭐⭐⭐ Must Have Tool
*by T***D on January 17, 2026*

Worked as advertised. I have used it multiple times. It works great.

## 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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- For GM LS Harmonic Balancer Puller 25264 Crank Pulley Puller Automotive Replacement Engine Quickly Removes Harmonic Balancers without Tapped Holes and No Radiator Removal

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-09*