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When working properly, the 68RFE and Aisin AS69RC are a great transmission. Unfortunately, though, when things go bad, they go very bad. The 68RFE especially has been plagued with a high failure rate that many attribute to the fact the converter in this transmission never goes into a full lockup, which creates excessive heat, and we all know what heat does to a transmission. Interestingly enough, this easy to install bypass valve delete can keep your transmission temperatures in check in certain environments, potentially saving you a heap of money.
Another part that can be damaged by the heat allowed to pass through the factory bypass valve is the factory plastic filter coupler. To remedy this, ATS manufactures and includes a billet filter coupler so that the filter has a solid mounting point which won't be compromised by higher temperatores or over-tightening.
HOW IT WORKS: Ram decided to incorporate a transmission cooler bypass valve into the cooling system of the 68RFE and Aisin AS69RC that bypasses the transmission cooler during cold operation. The intent is to force the transmission to warm up faster. The reality is this bypass valve leaks and sticks in the bypass position in almost every case, causing the transmission cooler flow to bypass the trans cooler, essentially eliminating the trans cooler from the circuit. This causes severe damage to the transmission over time because it is not being adequately cooled by the transmission cooler. The ATS cooler block replaces the faulty design, eliminating the bypass valve and ensures 100% of the trans cooler flow is forced through the trans cooler. In every case this substantially reduces transmission temperatures.IMPORTANT FITMENT NOTES:
- This product will only work on 68RFE and Aisin AS69RC transmissions. The AS69RC is found on cab and chassis models, which is different than the ASC69RC, found on the later model High Output Rams. If you are uncertain as to which transmission you have, please reference your build sheet.
- Replaces part numbers 68186711AA, 68186711AB
- ManufacturerATS Diesel Performance
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Do you have a install video on this product? I just ordered one for my 2017 HD2500 Ram 6.7L CTD.?
We do not have any install videos. But it is a very simple install and looks like it will only go on one way. DppSands
Will this fit the 66rfe transmission as well??
If they use the same valve I don't see why not. That has only been confirmed on the 68rfe and Aisin 6.7 Cummins trucks, DppSands.
Will this work on a 65rfe ram 1500, I fell that it should 65rfe 66rfe and the 68rfe all use the same system. Thanks Marco?
This product will only work on 68RFE and Aisin AS69RC transmissions. DppSands
Will this product fit a 2010 Cummins with the 68rfe?
No, this is designed for the 2013+ trucks.
I have a 2013 Cummins with the 68rfe would this thermal bypass valve delete be a good idea to add if my truck is fully deleted and has hpp 5 stage efi and rev max trans tuning or would trans tuning alone be enough, I dont want to go overkill, also would the valve body plate be a good idea as well if I have trans tuning I see there's alot of pressure modules an things like that to benefit the trans just want to know what's best considering I already am deleted and tuned and also have trans tuning thanks.?
Yes that bypass valve delete is a great idea, excellent upgrade for longevity of the transmission. I would definitely look at a gasket and plate kit also. When we up the line pressure on the 68's it can cause some internal cross leakage. That would cut that leakage down to almost nothing. And prevent the clutches from dragging. Thank you! DppSands