Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Marsoni

M251S

$147.95

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

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve KitSKU: MMTC L5P TBV UPC: 840197710616 Mishimoto 2017+ Chevrolet GMC 6. 6L Duramax L5P Transmission Thermal Bypass Valve Kit Replace the failure prone stock thermal bypass valve in your 2017+ Chevrolet Silverado and GMC Sierra HD trucks with L5P Duramax diesel. This Mishimoto kit ensures transmission fluid reaches the cooler for effective heat management during towing and heavy loads. CNC machined aluminum design delivers reliable performance with faster

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I’ve been using this for a while now and I’m glad I chose this one. The pump action is great to keep filled for easy use. I have 2 sponges on it and on the right side I keep a bottle brush as well as a squeeze bottle of dawn. It is a really good size! Good value and very functional for my needs.

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Reviewed in the United States on January 23, 2026

Verified Purchase

Dad-E

New York, US

★★★★★ 3

Good enough

This item does the job but if you place wet items into the pocket, it will leak that water out the bottom, leaving your counter top wet. Otherwise, it works fine.

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Reviewed in the United States on January 6, 2026

Verified Purchase

Debra Bilecky

Lexington, US

★★★★★ 4

Very good dispenser

This soap dispenser was a little bigger than expected, but I still like it. Sturdy and holds a lot of dish liquid and lots of room for sponges and other items.

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Reviewed in the United States on October 22, 2025

Verified Purchase

Amazon Customer

Massapequa, US

★★★★★ 5

Sop

It is easy to fill with soap. Easy to use

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Reviewed in the United States on March 22, 2026