---
product_id: 123158683
title: "Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L"
brand: "gpp"
price: "VT99278"
currency: VUV
in_stock: true
category: "Automotive"
url: https://www.desertcart.vu/products/123158683-heavy-duty-upgraded-allison-transmission-cooler-lines-2001-2005-gm
store_origin: VU
region: Vanuatu
---

# Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L

**Brand:** gpp
**Price:** VT99278
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L by gpp
- **How much does it cost?** VT99278 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/123158683-heavy-duty-upgraded-allison-transmission-cooler-lines-2001-2005-gm)

## Best For

- gpp enthusiasts

## Why This Product

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

## Description

The Allison transmission cooler lines fix the old leaky transmission lines in your 2001-2005 GM 6.6L Duramax LB7 & LLY. These heavy-duty, high-flow, flexible transmission lines are just what you need for trouble-free performance from your Allison Transmission. Kit Includes: Transmission Lines Concave Washers Includes All Fittings/Hardware Note: In most cases, trucks with aftermarket radiators will require the purchase of aftermarket fittings for installation. Due to the many possible combinations, fitment is not guaranteed on non-stock components. 2001-2005 GM 6.6L LB7 & LLY Duramax Diesel (w/ Allison Transmission ONLY)

## Features

- 2001-2005 GM 6.6L LB7 & LLY Duramax Diesel (w/ Allison Transmission ONLY)
- Heavy Duty
- Includes All Fittings/Hardware
- High Flow Lines
- ›See more product details

## Images

![Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L - Image 1](https://images-na.ssl-images-amazon.com/images/I/81oW2aFwalL.jpg)
![Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L - Image 2](https://images-na.ssl-images-amazon.com/images/I/7181juygBqL.jpg)

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---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-16*