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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Wingman58
New York, US
★★★★★ 5
Works fine.
Style: 1-Pack, Size: 6 Feet
It's a cord and works fine.
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Reviewed in the United States on May 11, 2026
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This Amazon Basics DisplayPort‑to‑HDMI cable is the strong, silent type — uni‑directional, dependable, and absolutely not here for your “why won’t this work backwards?” nonsense. It plugs in, does its job, and beams your DisplayPort signal to your HDMI display like a loyal little digital courier. No flickering, no tantrums, no “surprise, I’m actually an adapter from 2009.” If you want a cable that just works and doesn’t demand emotional support, this is the one.
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Reviewed in the United States on June 2, 2026
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West Palm Beach, US
★★★★★ 5
Clear picture and reliable connection.
Style: 1-Pack, Size: 6 Feet
This DisplayPort to HDMI cable was exactly what I needed at a low price point to connect my computer to my monitor. The gold-plated connectors are functional for maintaining a steady signal, and the 6ft length is more than adequate for my desk setup. I’m giving it 5 stars because the picture quality is excellent and it worked immediately without any flickering—this was a good choice.
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Reviewed in the United States on February 27, 2026
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Marc
Dallas, US
★★★★★ 5
just works perfectly out of the box
Style: 1-Pack, Size: 6 Feet
Plugged this in between my PC and monitor and it worked right away with zero setup required. Picture quality is great and I've had no issues with flickering or signal drops after weeks of use. The 6 foot length is perfect for a typical desk setup and it feels a lot sturdier than the random cheap cables I've used before. Honestly what more could you want from a cable at this price point.
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Reviewed in the United States on April 4, 2026
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Msmelsc
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★★★★★ 5
Great value
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Great price for display to HDMI cable. I don’t know anything about it, but my son says it works perfectly!
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Reviewed in the United States on May 21, 2026

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