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

$99.95

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

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve KitThe Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the Allison 1000 transmission utilizes an in

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At first had trouble. The instructions that came with it would not reset my printer. I emailed the seller and about 24 hours later I received another set of instructions that worked on my printer. The price for 4 is great I now have a good supply of back ups. I have and do recommend this. It was an easy install of the ink tray, good quality and fit perfectly. It is compatible with several printers.

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Reviewed in the United States on April 14, 2026

Verified Purchase

ImEdD

Lexington, US

★★★★★ 5

Works good

Program work fine. Very easy to use it. No code needed to use it. Its activated. Printer is back to business

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Reviewed in the United States on June 10, 2026

Verified Purchase

Magaly

New York, US

★★★★★ 5

Easy process

I only used it once, I don’t know how the other 3 keys are supplied to work because I did not see any counting bit it work perfectly. It was super easy, my only issue is that I had to download the driver and restart the pc to make everything work out but the process itself is pretty easy. The printer work like new and the installation was easy too.

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Reviewed in the United States on March 25, 2026

Verified Purchase

Amazon Customer

Lake Worth, US

★★★★★ 5

Fits perfectly in the Epson ET-2720 and reset software worked!

The waste ink pad replacement fit perfectly in the Epson ET-2720 and looked to be identical to the original that needed replacing. The reset software they provide also worked without any issue.

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Reviewed in the United States on May 3, 2026

Verified Purchase

joseph g pope

Alexandria, US

★★★★★ 1

Not everything included

It says it comes with program to reset the printer an all the information that came with the tanks takes you to sites that want you to buy the key to unlock. These were purchased with the idea everything you needed came with it.

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Reviewed in the United States on November 9, 2025