66RFE Input Drum 2010-2018, remanufactured and ready to install. Fits the 66RFE. Ships fast from the USA.
Owners of 2010-2018 Ram heavy-duty trucks, whether a HEMI gas truck with the 66RFE or a 6.7L Cummins with the 68RFE, usually land here after harsh or flared shifts, a converter that will not lock, or an overdrive clutch that keeps burning. Our store title calls this an input drum, but the part is a built valve body for the 66RFE and 68RFE, 2010-2018, in the 5 check ball style. Its build sheet lists hard anodized billet aluminum accumulator pistons, a separator plate with gaskets, a heavy-duty accumulator support plate, an updated solenoid switch valve and oversized solenoid switch valve plugs. The solenoid block is not included.
Both transmissions are clutch-to-clutch six-speeds with no governor. The control module commands a solenoid block bolted to the valve body, and the valve body turns those signals into apply oil for each clutch. In these years the Low/Reverse solenoid also controls the converter clutch, and the solenoid switch valve decides which job its oil goes to. When the switch valve or its end plugs wear the aluminum bore, apply pressure leaks away and you get lockup complaints, a burned overdrive clutch or failsafe operation.
That is why the oversized plugs matter. Sonnax lists oversized switch valve plug kits for this valve body family specifically because the original bore wears, and the repair is to ream the bore and fit larger plugs. Billet accumulator pistons replace the factory pistons, which wear and break, and the heavy-duty support plate and fresh separator gaskets close the cross-leaks a tired body develops.
Rule out low fluid and a bad solenoid block first, because the block carries over to this unit. Then compare commanded and actual line pressure on a scan tool; a gap that grows as the fluid heats points to internal leakage. Our valve body testing guide covers these checks, and the solenoid testing guide helps you clear the pack before you spend money on hard parts.
The build is listed for 2010-2018 66RFE and 68RFE valve bodies in the 5 check ball style. On the 66RFE side that means Ram 2500, Power Wagon and 3500 chassis cab gas trucks through 2018; on the 68RFE side it means 2010-2018 Ram 2500 and 3500 Cummins trucks. These units use the gray pass-through connector. A white-connector 2009-and-earlier unit or a blue-connector 2019-and-later unit takes a different valve body. Count the check balls in your old unit, check the connector color, or send us your year, engine and VIN. If you prefer a standard-duty remanufactured unit, compare the 66RFE 2010-2018 5-ball valve body. The rest of the lineup is on our RFE parts page.
| Fits | 66RFE 2010-2018 |
| Part type | Input Drum |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. Despite the store title, it is a complete built valve body for 2010-2018 66RFE and 68RFE transmissions, 5 check ball style, without the solenoid block.
The build is listed for both the 66RFE (HEMI gas Ram HD) and the 68RFE (6.7L Cummins) for 2010-2018. Confirm the 5-ball layout and gray connector on your old unit.
No. Reuse your tested gray-connector solenoid block or buy a replacement, and install it with a new gasket.
The solenoid switch valve plug bore is a known wear point in this valve body family. Reaming the bore and fitting oversized plugs restores the seal so apply oil is not lost.
No. 2019-up units have a separate TCC solenoid, a blue connector and a different valve body.
ATF+4 only, level set hot, then a TCM quick learn with a scan tool.
