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

Mishimoto SKU: MISMMTC-L5P-TBVFF
Price
Regular price $10300
Regular price $11300 Sale price $10300
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18 In stock


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Description
The 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-line thermal bypass valve that controls fluid flow to the transmission cooler. The purpose of this valve is to prevent transmission fluid from flowing to the cooler until it reaches operating temperature. The thermostat inside this valve is prone to failure, however, and when that happens, the fluid never flows to the cooler, and the transmission can overheat. That's why Mishimoto has developed a full-flow thermal bypass valve upgrade for your 2017-2019 Chevrolet/GMC 6.6L Duramax. Our CNC-machined aluminum full-flow thermal bypass valve not only looks better than the stock unit, but it performs better too. This Mishimoto thermal bypass valve eliminates the internal thermostat, providing full fluid flow to the transmission cooler in all running conditions. This setup is ideal for owners in warm climates, those performing heavy towing, and trucks needing the best possible cooling efficiency for their transmission. The Mishimoto thermal bypass valve features strategically machined internal passages, providing improved flow over the stock valve for more effective cooling. In addition, cooling fins machined into the valve body adds even more heat dissipation. This 2017-2019 Chevrolet/GMC 6.6L Duramax L5P Full-Flow Thermal Bypass Valve Kit is built to last a lifetime with a durable black anodized finish and our Mishimoto Lifetime Warranty.

This Part Fits:

Year Make Model Submodel
2017-2019 Chevrolet Silverado 2500 HD High Country
2017-2019 Chevrolet Silverado 2500 HD LT
2017-2019 Chevrolet Silverado 2500 HD LTZ
2017-2019 Chevrolet Silverado 2500 HD WT
2017-2019 Chevrolet Silverado 3500 HD High Country
2017-2019 Chevrolet Silverado 3500 HD LT
2017-2019 Chevrolet Silverado 3500 HD LTZ
2017-2019 Chevrolet Silverado 3500 HD WT
2017-2019 GMC Sierra 2500 HD Base
2017-2019 GMC Sierra 2500 HD Denali
2017-2019 GMC Sierra 2500 HD SLE
2017-2019 GMC Sierra 2500 HD SLT
2017-2019 GMC Sierra 3500 HD Base
2017-2019 GMC Sierra 3500 HD Denali
2017-2019 GMC Sierra 3500 HD SLE
2017-2019 GMC Sierra 3500 HD SLT
Shipping information

Tracking will be sent once it leaves our warehouse.

For Canadian shipments, if the item is at a US address, the item needs to be brought into our Winnipeg warranty prior to shipping out to the destination.

Tracking information will be received once it leaves Winnipeg.

Please note, average turn around time for this is roughly 2 weeks, if the product is in stock.

Absolutely NO refunds/exchanges on special order items. If return of a non special order item is requested, customer must pay shipping and it must be requested within 14 days of purchase. 

Any orders not picked up by the customer within 15 days after notification of arrival becomes property of OSS Motorsport Ltd. no credit or refund will be given.

Customers that remove product(s) from OSS Motorsport will have been deemed to agree with all of the above terms and conditions. All items sold are for Off Road Use Only.

All performance modifications are done at your own risk and may void your warranty.

UNWANTED ITEMS

Unwanted items are subject to a 20% restocking fee, in addition to the return shipping to our warehouse(if applicable). Used items cannot be returned.

Electronics

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TERMS AND CONDITIONS

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Shipments, returns & refund

During the payment process, we provide delivery options with different delivery companies with which we have no contractual relationship. We offer commission free this added service so the client can receive its order without having to round trip to our warehouse. If there is any problem with the delivery, it is the consignee responsibility to contact the delivery company he/she dealt with directly. The carrier provide a limited insurance of 100$. If you need more, please contact us prior to purchase as we will get you the quotation for extra insurance from the carrier you will select.

NO return accepted. Exchange upon approval and proof of factory default.

Partial or full refund requests are subject to 5% administrative fees. Refund is immediately issued upon cancellation and a confirmation email is sent. However, depending on the payment method used, it may take one (1) to ten (10) days for the refund to appear in client account.

Special orders are non-refundable.

United States orders may be subject to Custom fees and tax as we ship from Canada. 

Disclaimers:

Some products may be used for off-road only. Customer is responsible to check with his/her local/state laws and ordinances.

We are not responsible if the client ordered the wrong item, which does not work on its vehicle.

All parts required professional installation, there is no return or exchange if the client does not know how to install it him/herself.

OSS Motorsport is not responsible for defective or damage caused by unprofessional installation or misuse of the product.

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