Mishimoto Transmission Cooler, Chevy/GMC (2001-03) 6.6L Duramax 2500 & 3500 LB7

• Direct fit for 2001–2003 Chevrolet/GMC 6.6L Duramax (LB7)
• Stacked-plate construction for maximum durability and superior cooling
• CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
• 174% greater core volume than stock cooler
• 192% greater external fin surface area over stock cooler
• Patent Pending
• Mishimoto Lifetime Warranty

*This kit fits with early 2003 trucks with orange clips. Late 2003 trucks with purple clips should use MMTC-DMAX-03
Was: $464.37
Sale: $394.95
Save: 15%
Save: $69.42

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There’s no greater enemy for a transmission than heat. Whether your 2001–2003 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.

Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Their 2001–2003 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174% greater core volume, and 192% greater fin surface area than the stock 2001–2003 Duramax transmission cooler.

The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.

(1) Mishimoto Stacked Plate Transmission Cooler
(2) CNC-Machined Quick-Disconnect to Hose Barb Adapters
(2) Stock-style Quick-Disconnect Fittings
(2) Transmission Hoses
(2) Mounting Brackets
(4) Worm Gear Clamps
(1) Zip Tie
• Mounting Hardware
• Mishimoto Lifetime Warranty

This kit fits with early 2003 trucks with orange clips. Late 2003 trucks with purple clips should use MMTC-DMAX-03



Shipping Information

  • Item Requires Shipping
  • 11.0 lbs.
  • W14.0000” x H4.0000” x L29.0000”
  • Free Shipping

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