

Merchant Automotive Transmission Cooler Line Repair Kit & Cutter (2001-2010 6.6L Duramax)
Secure Checkout
Genuine Parts
Fast Shipping
Diesel Experts
Want this installed at our shop?
Fill out the form below and we'll reach out to schedule your installation.
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Merchant Automotive Transmission Cooler Line Repair Kit & Cutter (2001-2010 6.6L Duramax) you will earn 275 DIESEL DOLLARS in your SDS Fuel Tank!
Pick up the Merchant Automotive 10611 Transmission Cooler Line Repair Kit & Cutter from SDS for your vehicle today. Replace leaking coolant lines on your 2001 to 2010 Allison Transmission with this repair kit that includes a mini tube cutter for easy installation. A common area for leaks to occur in an Allison Transmission is at the factory crimp on the OEM-installed coolant lines. This is more common in cold weather as the rubber hose on the line shrinks and allows leaks around the factory crimp. To fix this area of concern Merchant has created replacement lines that feature high-grade fittings. They also upgraded the lines with heavy-duty D.O.T.-approved hydraulic hoses which can withstand pressures of nearly 2000 PSI. Properly sized and ready to install, this kit is a permanent solution to a growing problem. To install, cut the factory line a half inch from the factory crimp.
Manufacturer Warranty*:Features:
- High Grade Fittings
- Heavy-Duty D.O.T. Approved Hydraulic Hoses
- Withstands Nearly 2000 PSI of Pressure
- Mini Tube Cutter for Easy OEM Line Removal
- Hoses are Sized to Fit
- Manufactured to Meet or Exceed Strict Quality Requirements
- Designed to Deliver Trouble-free, Consistent Performance
1 Year Limited

Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Merchant Automotive Transmission Cooler Line Repair Kit & Cutter (2001-2010 6.6L Duramax) you will earn 275 DIESEL DOLLARS in your SDS Fuel Tank!