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 CoolerThere'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

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Your Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler orders ship within 1-2 business days.

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Fast: 2-3 business days
Express: 1-2 business days

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So I have several self warming pads, this is the first one all three cats like. The outer cover is similar to the fake rabbit fur blankets and that was a huge hit in my house, everyone kneaded it excessively. While the pad isn't thick it does generate some heat keeping my smallest cat warm. And even my fattest guy liked it. It is made well and I am already ordering a second.

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Reviewed in the United States on March 25, 2026

Verified Purchase

Monica I

Lexington, US

★★★★★ 5

Small cat (or dog) warming bed.

Size: 20.0"L x 16.0"W x 0.5"Th, Color: Grey

LOVE this warming cat bed!! With a tiled or cement floor, this is an ideal strategy to remind little pets that this is a warm spot for you to lay your head <3

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Reviewed in the United States on May 13, 2026

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Sherry R.

Draper, US

★★★★★ 5

Great.

Size: 27.6"L x 18.8"W x 0.5"Th, Color: Grey

My cats love these. Will choose these over and over again. I had to buy multiple so they could each have one. Does seem to help keep warmth in. It’s also easy to clean.

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Reviewed in the United States on April 19, 2026

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curtis840

Alexandria, US

★★★★★ 4

Warm, Comfy, and No Electricity Needed

Size: 20.0"L x 16.0"W x 0.5"Th, Color: Grey

This self-warming cat mat works well — it reflects body heat and stays noticeably warm without plugs or electricity. The surface is soft and cozy, and most cats seem to take to it quickly. It's lightweight, easy to clean, and fits well in beds, carriers, or on furniture. It’s a bit thin, so adding extra padding underneath may help. Also, it can slide on hard floors, so best used on carpet or fabric surfaces.

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Reviewed in the United States on July 21, 2025

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Love J and K

Whiting, US

★★★★★ 5

It's a hit!

Size: 27.6"L x 18.8"W x 0.5"Th, Color: Grey, Size: 27.6"L x 18.8"W x 0.5"Th, Color: Grey

He loves it. I wish I had purchased the large instead of the medium, but it still fits him okay. If he stretches out, it won't, though. :) He's a big boy. I have it lying on a bed in the spare room, where he often is, looking out the window. It's soft and makes barely any noise. It doesn't slip on the bed. I might on the floor. With anything new that we buy him, we spray it lightly with catnip spray and he always takes right to it, as he did with this. It's warm under his body. He's happy, we're happy! :) I ordered the larger one. It got here today! I moved the smaller one to a window seat. I hate when the delivery guys add, was handed directly to homeowner, no it wasn't It was put in a package box outside, ringing the door bell is not the same as handing it directly to me! LOL

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Reviewed in the United States on October 27, 2025