---
product_id: 468460702
title: "7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4\" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS)"
brand: "e-cowlboy"
price: "2076.85 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "E Cowlboy"
url: https://www.desertcart.tn/products/468460702-7040-piston-ring-compressor-tool-adapter-anti-polishing-ring-cummins
store_origin: TN
region: Tunisia
---

# Anti-corrosion red coating Fits 5.4" bore engines 4-piece heavy-duty alloy steel set 7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS)

**Brand:** e-cowlboy
**Price:** 2076.85 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your engine game with precision and power!

## Quick Answers

- **What is this?** 7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) by e-cowlboy
- **How much does it cost?** 2076.85 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/468460702-7040-piston-ring-compressor-tool-adapter-anti-polishing-ring-cummins)

## Best For

- e-cowlboy enthusiasts

## Why This Product

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

## Key Features

- • **Bold & Built to Perform:** Finished with a vibrant red corrosion-resistant coating that stands out in any professional mechanic’s toolkit.
- • **Anti-Polishing Innovation:** Includes a specialized anti-polishing ring adapter to protect cylinder liners and extend engine life.
- • **Precision Fit for Powerhouses:** Seamlessly compatible with Cummins ISX/QSX 15 & Caterpillar 3400 series engines, ensuring flawless piston ring installation every time.
- • **Time-Saving Installation Upgrade:** Designed as a perfect alternative to PT-7040 and related models, enabling quick, effortless piston ring compression and removal.
- • **Durability That Outlasts the Competition:** Crafted from premium centrifugal cast alloy steel, engineered to resist deformation and corrosion for long-term reliability.

## Overview

The 7040 Piston Ring Compressor Tool Kit is a robust 4-piece set designed for professional-grade compatibility with Cummins ISX/QSX 15 and Caterpillar 3400 series engines featuring a 5.4" bore. Manufactured from premium alloy steel via centrifugal casting, it offers superior durability, corrosion resistance, and precision fit. This kit includes an anti-polishing ring adapter to protect cylinder liners, streamlining piston ring installation and removal while extending engine longevity.

## Description

Great Compatibility — Compatible with Cummins ISX 15 & QSX 15 and Caterpillar 3400, 3406, 3408, 3412 and C15 with a 5.4" bore.

Review: No response from seller to inquire location of package - Great
Review: Very please with product ! Heavy Duty - very pleased ,

## Features

- Great Compatibility Works on Caterpillar 3400, C15 and Cummins ISX 15 & QSX 15 with a 5.4" bore.
- Special Features Alternative to PT-7040, 5299448, 5299447 and 5299339.
- Upgrade Design Used In conjunction with an existing piston ring compressor to install piston rings into anti-polishing cylinder liners. Removing and installing the piston ring with ease and quick to save your time and energy.
- Superior Quality Premium grade heavy duty steel, manufactured using centrifugal casting for quality, durability, anti-deformation and anti-corrosion. High precision, high hardness and bright red paint coated surface can prevent the tool from corrosion and rust to provide a much longer service life.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088R9QNXM |
| Best Sellers Rank | 76,657 in Automotive ( See Top 100 in Automotive ) 21 in Car Engine Piston Rings & Ring Sets |
| Brand | E-cowlboy |
| Colour | Red |
| Customer Reviews | 4.4 out of 5 stars 74 Reviews |
| Manufacturer | E-cowlboy |
| Manufacturer Part Number | EC - Tool&RingKit |
| Material | Alloy Steel |
| Number of Pieces | 4 |
| Number of items | 4 |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |

## Product Details

- **Brand:** E-cowlboy
- **Color:** Red
- **Manufacturer:** E-cowlboy
- **Material:** Alloy Steel
- **Unit Count:** 1.0 Count

## Images

![7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) - Image 1](https://m.media-amazon.com/images/I/71Q7+6HTy6L.jpg)
![7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) - Image 2](https://m.media-amazon.com/images/I/61cnDpyq1vL.jpg)
![7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) - Image 3](https://m.media-amazon.com/images/I/71jx5482oRL.jpg)
![7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) - Image 4](https://m.media-amazon.com/images/I/610tbjr1c8L.jpg)
![7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5299448 5299447 5299339 (4 PCS) - Image 5](https://m.media-amazon.com/images/I/61U9+GzbUEL.jpg)

## Questions & Answers

**Q: Does generator gas tank need to be full? Also the vent on the external tank open or closed?**
A: Helps if the gas tank is full. Vent open

**Q: How do you hook from the cap to an external gas tank?**
A: I used a boat gas connection and hose to a boat gas can

## Customer Reviews

### ⭐⭐⭐⭐⭐ No response from seller to inquire location of package
*by L***D on 1 April 2026*

Great

### ⭐⭐⭐⭐⭐ Very please with product ! Heavy Duty
*by A***N on 24 July 2022*

very pleased ,

### ⭐⭐⭐⭐ Worked fine on a 3406b
*by J***E on 15 February 2025*

Works fines better one one than the other but made 3406b pistons in new liners easy

## Frequently Bought Together

- 7040 Piston Ring Compressor Tool+Adapter+Anti-Polishing Ring For Cummins ISX/QSX, Caterpillar 3400, C-15 5.4" bore Alternative PT-7040 5394454 5299448 5299447 5299339 (4 PCS)
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**Shop now:** [https://www.desertcart.tn/products/468460702-7040-piston-ring-compressor-tool-adapter-anti-polishing-ring-cummins](https://www.desertcart.tn/products/468460702-7040-piston-ring-compressor-tool-adapter-anti-polishing-ring-cummins)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-13*