Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler

Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler

Marsoni

M251S

$249.47

Get it in 3 business days with 1 day shipping. Friday, May 29

Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission CoolerSKU: MMTC DMAX 03SL UPC: 811580034084 Mishimoto 03 05 Chevrolet GMC 6. 6L Duramax (LB7 LLY) Transmission Cooler Control transmission heat in your 2003 2005 Chevrolet Silverado 2500 HD 3500 or GMC Sierra 2500 HD 3500 with 6. 6L Duramax LB7 or LLY engine using this Mishimoto transmission cooler. The stacked plate design delivers powerful cooling for towing fleet work or drag strip runs. This direct fit cooler features a larger core for reliable

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Yoooooo great product but what is with the comically tiny screws? Actually installing this on the underside of a wooden desk is near impossible unless, of course, you are in fact a Disney princess and in charge of a team of handy-dandy mice all with #0 Phillips head screwdrivers and 5/32" drill bits. They drill, you hold, kind of thing.

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Reviewed in the United States on May 11, 2026

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Totentanz1980

Natrona Heights, US

★★★★★ 5

Great for cable management

Size: 6ft Cord, Color: 20W_Black

If you are obsessed with keeping cables neatly organized for your desk, this is the perfect power strip to get. It comes with decent enough screws for mounting that will hold the weight of all the cords you plug in. The outlets on all three sides is very convenient and makes it a snap to fit all your devices in even with some having very large adapters on the plugs, which often take up a majority of the power strip. I have already purchased a couple more so I can organize my wife's desk and one of my kid's desks.

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Reviewed in the United States on December 1, 2025

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Lilnono

Battle Creek, US

★★★★★ 5

Affordable yet quality

Size: 10ft Cord, Color: 20W_Black

I bought 2 of these to screw in place under my desk. Good quality and works good.

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Reviewed in the United States on January 2, 2026

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Evelyn Barlow

Whiting, US

★★★★★ 5

Very nice

Size: 6ft Cord, Color: 20W_Black

Perfect for what I needed. Plenty of plugin space.

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Reviewed in the United States on October 31, 2025

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doglogic

Dallas, US

★★★★★ 5

Fine, Be Careful How You Mount It

Size: 6ft Cord, Color: 20W_Black

Good power strip with the functionality that I needed. 12 plugs and usb. Be careful how you mount it because the plugs on one side are upside down. You may have to buy thin pigtails which I did.

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Reviewed in the United States on March 21, 2025