66RFE Planetary 2010-2018, remanufactured and ready to install. Fits the 66RFE. Ships fast from the USA.
This listing went into our catalog under the name planetary, but it is not a gearset. It is a heavy-duty remanufactured valve body, part number CR-2762BHD, built for 2010-2018 66RFE and 68RFE transmissions in the 5 check ball style. If you drive a gas Ram 2500, Power Wagon or 3500 chassis cab with the 5.7L or 6.4L HEMI and the truck has started banging into gear, refusing to lock the converter, slipping out of overdrive or dropping into limp mode, a worn valve body is one of the first places a builder looks. The unit comes with billet accumulator pistons, a heavy-duty accumulator support plate, a separator plate with gaskets, an updated solenoid switch valve and oversized switch valve plugs. Your solenoid block is not included and moves over from the old unit.
The 66RFE is the gas-engine member of the RFE family. It shares its gearset and six ratios with the 68RFE but sits behind roughly 400 to 430 lb-ft of HEMI torque instead of diesel torque. Like every RFE it has no bands and no governor. The control module fires solenoids in the pack, and the valve body under that pack routes oil to each clutch, cushions the apply with accumulators, and uses the solenoid switch valve to send Low/Reverse solenoid oil either to the Low/Reverse clutch or to the converter clutch. Sonnax notes that this family switched to a larger .453 in. switch valve spool around the 2010 model year, which is why a 2010-2018 body uses a different switch valve than earlier units.
A gas truck spends a lot of time at higher rpm and on long tows, and heat is what wears the aluminum bores. Once the switch valve bore and its end plugs leak, oil meant for one clutch bleeds into another circuit.
Check the fluid level hot and smell the fluid first. Then test the solenoid pack, because a failed pack causes many of the same codes and is cheaper to fix. If the pack checks good and the codes return, the valve body is the next suspect. Our 66RFE valve body symptoms guide covers the gas-truck complaints, and the RFE valve body testing guide explains vacuum testing the switch valve bore, the check Sonnax recommends before calling a casting worn.
The listing covers 2010-2018 66RFE and 68RFE units with 5 check balls and the gray pass-through solenoid connector. Transmission Digest documents that 2009 and earlier packs used a white connector and that 2019 and later units moved to a blue connector with a separate TCC solenoid, so this body is not for either of those. Pull the pan and look before you buy: count the check balls in your old body and note the connector color, or send us your year, engine and VIN and we will confirm it. If you only want a standard-duty replacement, compare the standard-duty 2010-2018 5-ball body. More gas-truck parts are in the 66RFE collection, and diesel-side parts are in the 68RFE collection.
| Fits | 66RFE 2010-2018 |
| Part type | Planetary |
| 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. The store title is wrong. This is a complete heavy-duty valve body, CR-2762BHD, for 2010-2018 66RFE and 68RFE transmissions, 5 check ball style, without the solenoid block.
The listing covers 2010-2018 66RFE units with the 5-ball layout and gray connector. Confirm the ball count and connector color on your old body, or send us your VIN.
Yes, the listing covers both the 66RFE and the 68RFE for 2010-2018. The valve body hydraulics are shared across these two units in those years.
Not always. Test your pack first. If it tests good, reuse it on a new gasket. If it is weak or shorted, replace it at the same time.
ATF+4 only. Set the level with the fluid hot, at 160 degrees F or higher, and run a quick learn afterward.
It can, when the cause is a worn solenoid switch valve bore, because in these years the Low/Reverse solenoid also controls lockup through that valve. Rule out the pack and the converter first.
