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Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver

Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver

Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver
$ 359.79

Score By Feature

Based on 39 ratings
Customer service
8.65
Satisfaction
9.16
Giftable
9.14
Packaging
8.93

OveReview Final Score

How Our Score Is Calculated

Product Description

This part is for all Chevrolet/GMC 6 models from 2003 to 2005. Duramax 6L
Superior cooling and maximum durability thanks to the stacking of plates
Mishimoto coolers can easily be connected to stock fluid lines or AN sizes thanks to CNC-machined adapters
The cooler has a 174% higher core volume than the
The Mishimoto Lifetime Warranty and greater fin surface area over the stock cooler bring 192% more cooling surface to the extreme

Questions & Answers

Can you tell me how big this cooler is?

The core number for this project is 27. Thank you. It measures 95"x5". 1.78" x 1.78" You can reach out to Support@Mishimoto if you have additional questions or concerns. Go to www.com! Justin T. Thanks for the feedback, Justin T. Japanese Automotive Industry Mitsimoto

Can you tell me how large the inlet is?

Approximately 5/8" of space is available at the inlet diameter of this transmission cooler. Send us an e-mail at support@mishimoto for any other questions you may have. Feel free to contact us at www.com and we would be happy to help you. Please accept my sincere thanks, *br> *br> Mishima

Does it need to be tuned?

Hi, I'm Jeff. Anyway, installing this cooler does not require any special tuning. You can reach out to Mishimoto Support if you have any further questions or concerns. Go to www.com! Justin T. Thanks for the feedback, Justin T. Japanese Automotive Industry Mitsimoto

This should work for 2500HD How can you have no ?

A direct replacement transmission cooler is available for the 2003-2006 Nissan NP300 The Amazon page for the product displays the 2005 model year GM trucks with Duramax engines and Allison transmissions. The product page for the Mishimoto site notes that the trucks have an Allison transmission. The company. The gasoline trucks will not be a direct fit. To fix the gas trucks directly, you can purchase MMTC-model number as a direct-fit option I'm referring to version 14, which is compatible with 2014-2015 Currently, we are in the 2018 model year. Please send an email to support@mishimoto if you have any other questions. Feel free to contact us at www.com and we would be happy to help you. Please accept my sincere thanks, *br> *br> Mishima

Selected User Reviews For Mishimoto MMTC-DMAX-03SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver

There are several gaps in the Tec service
4/5

It took me two attempts to get the clamps to hold on to the hoses they were too light. It came flying tech told me to look for PDF on the company website. I went to the 05 LLY site, and the directions explained what was wrong with a 2003 Duramax. There is not a plug and play solution as Mishimoto said, I had to relocate the transmission temperature sensor. There is no way for me to tell whether the temperature of the transmission has improved. I will have to pull a load first. I am seriously concerned about the transmission There is no size that fits all when it comes to the cooler. The transmission stays cooler for at least two weeks after driving for this amount of time. It will be interesting to see how it performs in the summer when you pull.

Magnus Rich
Magnus Rich
| Nov 25, 2020
There is a lack of quality control
3/5

My 2003 GMC Sierra DMax has this kit, which is advertised as a direct replacement for the OEM cooler Mishimoto offers two different kits for 2003 GMC Sierra DMax's. Mishimoto advised me to order their cooler assembly, and after relocating the ambient air sensor, it bolts in just fine. Nevertheless, the connectors provided with the cooler to facilitate connecting the OEM lines to the new coolers are incorrect. I called Mishimoto again, and they advised me that I needed the other cooler As a result, I returned the first one and ordered the second. drew the truck apart for the second time, and again I found connectors that were wrong. I shipped it back to Amazon you'd think for the price of their products, they would get it right. I am.

Stetson Valencia
Stetson Valencia
| Jan 24, 2021
The performance was very good
5/5

It reduces the transmission temperature by almost 100 degrees with the Mishimoto transmission cooler. Even when towing uphill, the transmission temp still rises, but remains under 200 degrees, whereas it would reach nearly 300 degrees before. This is a great transmission cooler from Mishimoto. Everything you need to install it is included, including the hardware and hoses. As well as looking cool, it also works pretty well.

Kelvin Marshall
Kelvin Marshall
| Oct 12, 2020
I really like this product
5/5

I like this product. It is much cooler than what I expected.

Malcolm Fritz
Malcolm Fritz
| Sep 08, 2020
I can't say enough about how good this product is
4/5

A pretty generic video covers multiple models and provides only moderate support. The product works well, but the installation video is extremely It is fortunately possible to find other You Tube videos that provide the information you need, but after paying north of $350, you would think Mishimoto could make an educational, complete video for my truck instead of a mediocre video that doesn't get much done.

Aubrie BEVAN
Aubrie BEVAN
| May 11, 2021
The trans stays 30 degrees cooler than before thanks to this product
5/5

I have not towed it, but it works well just to drive around town. It's easy to install and only takes a few minutes.

Stella Bond
Stella Bond
| Sep 04, 2020
You can get the best transmission cooler by purchasing it
5/5

The cooler fits perfectly in a duramax, easy to install and will take less than an hour to install. It is almost 3 times the size of the stock cooler, but well worth it for the price.

Autumn Tran
Autumn Tran
| Aug 01, 2020
This is a great product
5/5

You did a great job! It's awesome that it's packaged! Exactly what I was looking for! It is easy to install any new lines after old lines have been removed by applying heat to them if they are stuck.

Anne Patton
Anne Patton
| Nov 11, 2020

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