Buy Now, Pay Later with 0% Financing!

Shop Specials & Save 5% at Instantly


This section doesn’t currently include any content. Add content to this section using the sidebar.

Image caption appears here

Add your deal, information or promotional text



Mishimoto 6.6L Duramax Transmission Cooler Line Kit | Fits 2001-2005 Chevrolet/GMC (MMTCL-DMAX-01)

1 item left

z  Ships Within 24 Hours

MAP price match guarantee

6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit by Mishimoto

Every truck owner knows it doesn’t matter how powerful or reliable your engine is if you can’t get any power to the wheels.

If the engine is the heart of the drivetrain, the transmission is its backbone, holding it all together and letting the power flow to the wheels.

The transmission mated to your 2001-2010 LB7, LLY, LBZ, or LMM 6.6L Duramax is essential to everything your truck does, and keeping it cool is crucial.


  • Direct fit for 2001-2005 LB7/LLY Duramax
  • Includes -10AN to M22x1.5 fittings for use with many aftermarket radiators


  • High-strength nylon outer braid prevents expansion under high pressure and protects line against abrasion
  • Working pressure of 2,000 psi and burst pressure of 6,000 psi
  • High-flow -10AN lines and fittings ensure high flow while preventing leaks


  • Chevrolet Duramax 2001-2005
  • GMC Duramax 2001-2005

What's In The Box?

  • 1 - Transmission Cooler Line Kit


  • Mishimoto Lifetime Warranty.