Description
Fits
Year | Make | Engine |
2001 - 2004 | GM | LB7, LLY 6.6L Duramax |
You have an awesome truck with an Allison transmission, but coolant line issues can lead to fluid loss. That's why we've joined forces with Fleece Performance to offer these top - notch, high - flow Allison Transmission lines. Keep your Duramax on the road longer and more reliably!
Part Number: FPE - TL - LB7 - LLY
Features
- High - Quality, High - Flow Transmission Lines
- Double Hose Clamps
- Locking Cable Ties
- Heavy - duty Full Replacement Line Kit
Installation
- Click here for installation instructions

Using these transmission cooler lines is straightforward. First, make sure you click on the installation instructions link for a step - by - step guide. When installing, pay attention to properly securing the double hose clamps and locking cable ties. This will ensure a tight and leak - free connection. As for maintenance, regularly check the lines for any signs of wear or damage, like cracks or leaks. If you notice any issues, replace the lines promptly. Keep your Duramax running smoothly by using these high - quality lines and following these simple tips.