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XDP Xtra Cool Transmission Cooler Thermal Bypass Valve Upgrade XD343
PART#
XD343 | SKU XD343
★★★★★
Vehicle Fitment For:
2013-2018 Ram with 6.7L Cummins Engine (68RFE & AS69RC Transmission)
See full application list below
$99.95
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Description
Replace the problematic factory thermal bypass valve in your 2013-2018 Dodge Ram 6.7L Diesel before it causes catastrophic failure with the XDP Xtra Cool Transmission Cooler Thermal Bypass Valve Upgrade XD343. The OE thermal bypass valve is designed to route bypass the transmission cooler in cold temperatures in order to bring the transmission up to operating temperature faster. Unfortunately, the bimetallic valve commonly fails in the closed position, causing hot transmission fluid to constantly circulate right back into the transmission, never, or barely, passing through the cooler at all. This results in excessive transmission temperatures, potentially damaging your transmission and leaving you stranded on the side of the road with not only an expensive tow bill, but a costly repair bill as well!
XDP's Thermal Bypass Valve Upgrade utilizes an unrestricted straight through design, eliminating the recirculation aspect of the factory TBV. No more having to worry about when the factory part will fail you. By removing the passageway that returns hot fluid back to the transmission, fluid restriction is reduced, lowering overall transmission temperatures. A transmission that runs cool will last longer than one that's always hot. Installation is just like installing the OE part, requiring no cutting or modifications to the factory lines. To prevent leaks before they start, Four (4) new O-rings are supplied as well as two (2) quick connect fittings, making for a complete bolt-on kit for the 68RFE and Aisin AS69RC transmissions.
Features:
- Direct Replacement
- Eliminates Hot Fluid Recirculation
- Cooler Transmission Temperatures
- No Modification Needed For Installation
- Replaces Factory Thermal Bypass Valve
- Fits 68RFE & Aisin AS69RC Transmissions
- Replaces OE Part #: 68186711AA & 68186711AB
Note: Will also fit Hemi trucks equipped with a 545RFE, 65RFE, or 66RFE transmission.
Manufacturer Warranty*:
2 Year / Unlimited Mileage
2 Year / Unlimited Mileage
Instructions & Tech Info
Installation Info
Reviews For XDP XD343
Overall Rating
/5
7 Reviews
Verified Buyer
68rfe mastectomy pan,xdp thermal bypass,and filter bracket
chris (NC) | August 22nd, 2025
Great parts, well made. Just make sure to check the fittings on the thermal bypass. Mine were hand tight and leaked when I installed it. Tightened them up good and everything is good.
Much Cooler
Jesse (CA) | March 25th, 2021
I purchased XDP Transmission Cooler TBV due to a hot transmission after a rebuild. Before the purchase the transmission would run 180-185deg empty on a 65deg day. Now the transmission runs at 115deg while towing 10,000lbs at 70mph on a 65deg day here in Cali. The TBV comes with everything needed making it a direct swap.
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Specifications For XDP XD343
MPN
XD343
SKU
XD343
GTIN
856217008793
ID
50183
Manufacturer Name
XDP
Shipping Weight
1.00 lb.
Shipping Length
7 in.
Shipping Width
5 in.
Shipping Height
3 in.
Fuel Type
Diesel / Gas
Manufacturer Warranty*
2 Year / Unlimited Mileage
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference #
68186711AA, 68186711AB
Internal
L0R40
ITEM ADDED TO CART
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