Mishimoto MMTC-DMAX-03SL FITS: 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Transmission Coolers
SKU: 11643705096

Mishimoto MMTC-DMAX-03SL FITS: 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Transmission Coolers

Sale price$204.13 Regular price$226.81
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Mishimoto MMTC-DMAX-03SL FITS: 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Transmission CoolersThere's no greater enemy for a transmission than heat. Whether your 2003 2005 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. Our 2003 2005 Chevy GMC 6. 6L Duramax transmission cooler utilizes a stacked plate design for maximum durability

There's no greater enemy for a transmission than heat. Whether your 2003-2005 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. Our 2003-2005 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from It's durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174-percent greater core volume, and 192-percent greater fin surface area than the stock 2003-2005 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.

  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
  • Direct-fit for all 2003-2005 Chevrolet/GMC with Allison transmission (LB7/LLY)
  • Stacked-plate construction for maximum durability and superior cooling

This Part Fits:

Year Make Model Submodel
2003-2005 Chevrolet Silverado 2500 HD Base
2003-2005 Chevrolet Silverado 2500 HD LS
2003-2005 Chevrolet Silverado 2500 HD LT
2003-2005 Chevrolet Silverado 2500 HD WT
2003-2005 Chevrolet Silverado 3500 Base
2003-2005 Chevrolet Silverado 3500 LS
2003-2005 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2003-2005 GMC Sierra 2500 HD Base
2003-2005 GMC Sierra 2500 HD SLE
2003-2005 GMC Sierra 2500 HD SLT
2003-2005 GMC Sierra 2500 HD WT
2003-2005 GMC Sierra 3500 Base
2003-2005 GMC Sierra 3500 SLE
2003-2005 GMC Sierra 3500 SLT
2004-2005 GMC Sierra 3500 WT
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11643705096

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Simplified
San Leandro, US
★★★★★ 5
Space-Saving, Stylish, and Surprisingly Strong Closet Upgrade
Color: Black, Size: Pack of 100
I’ve been using these Amazon Basics slim velvet hangers, and they completely changed how organized my closet feels. The biggest difference is how much space they save. Because they’re so thin compared to regular plastic hangers, I was able to fit a lot more clothes in the same closet without it feeling crowded. The velvet coating is also a great feature. Clothes actually stay in place and don’t slip off, even lighter fabrics like tank tops or blouses. That alone makes getting dressed in the morning easier because I’m not constantly picking things up off the floor. They feel sturdy too. Even though they are slim, they hold heavier items like jackets and sweaters without bending or breaking. The shape helps keep clothes looking neat and prevents those annoying shoulder bumps that some hangers cause. I also like the clean black and silver look, it gives the closet a more uniform and organized appearance, which makes everything feel more put together. Overall, these hangers are a simple but very effective upgrade for any closet. They save space, keep clothes in place, and make everything look more organized without much effort.
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Reviewed in the United States on April 21, 2026
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Diana
Boise, US
★★★★★ 5
Looks more organized than bulky plastic hangers and multiple colors
Color: Black/Rose Gold, Size: Pack of 100
Love these hangers! The cloth helps from shirts slipping off and holds them in place! Stylish and thin so doesn’t take up all space on rack either! I’ve changed all our hangers over to these! They are very durable and there’s no assembly obviously. I’ve had one break, but that was with a pair of jeans hanging on it and I yanked the jeans instead of pulling the hanger off and taking the jeans off the hanger so I would say they’re pretty durable. There’s a lot of overweight people here and so the jeans and certain items are pretty heavy. I’m able to hang my husband uniforms in sets on them pants and then the shirt over top. Love these hangers. However, customer service is unreachable and when order you may be waiting for months to receive them!
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Reviewed in the United States on April 2, 2026
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Angela Colson
Pawtucket, US
★★★★★ 5
Good product
Color: Black, Size: Pack of 50
I love this product. Actually is the second time that I buy from this company. It is very sturdy and has a good grip and also is beautiful. I recommend it.
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Reviewed in the United States on May 27, 2026
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Jennifer
Los Angeles, US
★★★★★ 5
Overall, they’re a great way to display memories and decorate any space
Color: Black, Size: 11x17
Love these frames, They are really good quality and feel sturdy, not cheap at all. They were very easy to set up and insert my pictures, which I really appreciate. The size is perfect for posters or photos, and they make everything look much more professional and elegant on the wall. I also like how they fit well with any home decor style
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Reviewed in the United States on April 21, 2026
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Amy LST
Massapequa, US
★★★★★ 5
Quality frame - turns a puzzle into art
Color: Black, Size: 19.7x27.6, Color: Black, Size: 19.7x27.6
This puzzle frame worked perfectly for my 50cm x 70cm puzzle—it fits exactly and really transforms the finished puzzle into a beautiful display piece. The frame is well constructed and has a clean, finished look that doesn’t come across as cheap plastic. Mounting the puzzle was very easy, and everything sat securely once in place. It arrived well packaged with no damage, and the protective plastic sheet is a nice touch. It keeps the puzzle safe while being much lighter than glass, which makes hanging and handling easier. Overall, this is a quality frame that makes your completed puzzle look like real wall art.
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Reviewed in the United States on May 14, 2026

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