Mishimoto 06-10 Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) Transmission Cooler Line Kit

Mishimoto 06-10 Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) Transmission Cooler Line Kit

Marsoni

M251S

$174.97

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

Mishimoto 06-10 Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) Transmission Cooler Line KitEvery truck owner knows that it doesn't matter how powerful or reliable your engine is if you can't get any power to the wheels. The transmission mated to your 2006 20010 LLY LBZ LMM Duramax is essential to everything your truck does, and keeping it cool is crucial. Upgrading your transmission cooler with a Mishimoto performance transmission cooler is a good start, but the fluid still needs to get to the cooler. That's where this 2006 20010 LLY LBZ

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I am updating an emergency vehicle and am using this to run the equipment. It’s easy to work with and good thick wire. Came with nice little Velcro straps for keeping the roll together. The finish is nice on the outer casing. Nice gloss black. Excellent product. In fact I bought another 50 foot roll. And the prices for this is extremely good. Glad I found this wiring.

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Reviewed in the United States on January 31, 2024

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Capt Chris

Whiting, US

★★★★★ 5

Good quality wire

Size: 100ft, Style: 6C-18AWG

Good wire. Nice heaven outer casing. Have used several hundred feet of this for industrial vehicles. It comes in several wire counts. We use the 4 wire and 6 wire mostly and have never found an issue.

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Reviewed in the United States on October 17, 2025

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israel

Cuba, US

★★★★★ 5

Like the description

Size: 30ft, Style: 6C-18AWG

Good

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Reviewed in the United States on February 23, 2026

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