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 6 - Jul 11

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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:
  1. Standard Shipping : 3-10 business days
  • 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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Emily K.
Houston, US
★★★★★ 5
Great quality for the price
Size: Queen (90" X 90"), Color: 14 - Olive Green (No Comforter)
Soft and comfortable duvet cover and pillow cases. Color is true to the picture.
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Reviewed in the United States on May 24, 2026
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Sandra Davidoff
Whiting, US
★★★★★ 5
Love the Duvet!
Size: King (104" X 90"), Color: 04 - Linen (No Comforter)
Looks lovely and definitely a great product! Highly recommend! Color is perfect, fits perfectly
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Reviewed in the United States on May 15, 2026
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Lee V.
Birmingham, US
★★★★★ 3
Decent
Size: King (104" X 90"), Color: 05 - Khaki (No Comforter)
I purchased a bedsure duvet and duvet cover. King size. Should’ve purchased oversized king because it barely hangs over my bed. Highly disappointed with that, being that it’s not cheap when going duvet route, but otherwise happy with its comfort and texture.
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Reviewed in the United States on April 1, 2026
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mk johnson
Battle Creek, US
★★★★★ 5
Light, cool and comfortable.
Color: 02 - Beige, Size: King
I love these bamboo sheets! They are very soft and silky feeling. They keep me cool at night. I have not had any issues with washing/drying, they come out beautifully. They feel light and airy. I would definitely consider purchasing a set in another color as well.
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Reviewed in the United States on June 4, 2026
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Richard A Lane
Boise, US
★★★★★ 5
Well worth the money!
Color: 04 - Mineral Blue, Size: Queen
Really beautiful sheets and plenty big. So soft and cool. I love them
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Reviewed in the United States on May 23, 2026

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