NewTransmission Lines HEAVY-DUTY Cooler Hoses For 06-10 GM 6.6L +Allison

Transmission Lines and Cooler Hoses for GM 6.6L with Allison

These heavy-duty transmission lines and cooler hoses are designed to route and cool automatic transmission fluid for 2006 to 2010 GM 6.6L Duramax trucks paired with the Allison transmission.

Overview

These transmission lines and cooler hoses are built to replace worn or leaking factory fluid routing on 2006 to 2010 GM 6.6L diesel trucks equipped with the Allison transmission. The heavy-duty assembly carries transmission fluid between the transmission and the cooler, helping maintain steady operating temperatures under load. This set is intended for owners and technicians servicing these specific GM 6.6L and Allison applications who want reliable fluid flow.

Built For Performance

• Heavy-duty construction suited to the demands of 6.6L diesel towing and hauling
• Designed to route transmission fluid to and from the cooler for consistent cooling
• Built to withstand the higher pressures and heat of Allison transmission operation
• Direct-fit routing for the 2006 to 2010 GM 6.6L platform
• Sold as a set covering both the transmission lines and cooler hoses

Fits These Machines

• for 2006 to 2010 GM vehicles with the 6.6L engine
• for vehicles equipped with the Allison transmission

On-The-Job Use

• Towing and hauling with high transmission fluid temperatures
• Replacing cracked, rusted, or leaking factory fluid lines
• Routine transmission cooling system service and repair
• Shop repairs on 2006 to 2010 GM 6.6L diesel trucks

Specs At A Glance

Good To Know

Q: Do these replace the factory cooler lines directly? A: They are built to match the factory routing on the 2006 to 2010 GM 6.6L with Allison transmission. Confirm your model and year before ordering.

Q: Are fittings included? A: The set covers the transmission lines and cooler hoses as shown. Check your fittings and connection style against your existing setup before installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.