Transmission Cooler, fits Chevrolet/GMC 6.6L Duramax (LB7) 2001-2003
Transmission Cooler, fits Chevrolet/GMC 6.6L Duramax (LB7) 2001-2003
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- Direct fit for all 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 #D900,161
- Mishimoto Lifetime Warranty
Installation Difficulty: Easy
- Direct fit for all 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 #D900,161
- Mishimoto Lifetime Warranty
Product Description
Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 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.
TECH SPECS
| Rows | 13 |
|---|---|
| Core Length (in) | 27.95 |
| Core Height (in) | 5.78 |
| Core Thickness (in) | 1.25 |
| Engine Codes | 6.6L Duramax |
| Chassis Codes | LB7 |
| Note | This kit fits with early 2003 trucks with orange clips. Late 2003 trucks with purple clips should use MMTC-DMAX-03 |
Compatible Vehicles
Installation Guides
Purchase Includes
CNC-Machined Quick-Disconnect to Hose Barb Adapters
Stock-style Quick-Disconnect Fittings
Transmission Hoses
Mounting Brackets
Worm Gear Clamps
Zip Tie
Mounting Hardware
Mishimoto Lifetime Warranty
Note:
This kit fits with early 2003 trucks with orange clips. Late 2003 trucks with purple clips should use MMTC-DMAX-03With so many model years to cover, our biggest challenge would be making one cooler fit them all. But we had a plan.
Our 2001-2014 Chevy / GMC Duramax transmission cooler blog so far has focused on the two stock coolers. We looked at the early, comically small, transmission cooler. We looked at the later, and larger but poorly placed, transmission cooler. Finally, after almost a year of R&D, we get to look at Mishimoto's solution to the stock coolers' shortcomings. But first, we need to take a closer look at one more of the stock components.
At the end of our last post, we mentioned wanting to use one large cooler to fit all 14 model years
No matter how many trucks I write about, I'm always surprised how often a critical part of the drivetrain is underdeveloped. It's even more surprising when a truck built for towing and hauling has a major flaw in the transmission system. The transmission is the heart of towing, and when you're asking it to carry over five tons of truck and trailer up a grade, any weakness in the system is sure to show itself. However, the Allison transmission mated to 2001-2014 Duramax engines is not that weak point.
Extreme heat is always the enemy, especially when it comes to vehicles equipped with an automatic transmission. The Allison gearbox mated with your 6.6L Duramax is no exception. With the high temperatures produced by an automatic transmission, it seems almost cruel that the sweltering summer heat comes when most of the towing of campers, boats, and other outdoor toys happens. GM did include some help to keep your gears cool. Unfortunately, it's a little small.
For such an iconic towing machine, it seems strange to equip it with
Warranty
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
For our complete warranty policy, please click here.
Frequently Asked Questions (1)
