68RFE Sun Shell 2010-2018, remanufactured and ready to install. Fits the 68RFE. Ships fast from the USA.
The name on this listing says sun shell, but the part you receive is a heavy-duty remanufactured valve body, CR-2762BHD, for the 2010-2018 68RFE behind the 6.7L Cummins. Ram 2500 and 3500 owners usually find it after the second burned overdrive clutch, a P0871 that keeps returning, or shifts that go soft and flare once the truck is loaded and hot. This build targets the leaks that cause those failures: it has an updated solenoid switch valve with oversized end plugs, hard-anodized billet aluminum accumulator pistons, a heavy-duty accumulator support plate and a separator plate with gaskets. The solenoid block is not included.
Sonnax calls overdrive clutch failure the most common 68RFE failure, and it is worth knowing why. The factory OD steels are single-sided with a core only .034 in. thick, so they have little room for heat. Anything that lowers holding pressure lets them slip, and slip makes heat. The valve body is a big part of that pressure story. The solenoid switch valve plugs sit at the end of a bore that also feeds the 2nd and OD circuits, and Sonnax names those plugs the weakest link in the OD system. They cycle constantly, wear the aluminum casting, and cross-leak OD apply oil. A new set of clutches on a leaking body will burn again.
The accumulators matter too. They soften each clutch apply. Worn or broken factory pistons give harsh or uneven shifts, so this build replaces them with billet pieces.
Start with the scan tool. Graph commanded and actual line pressure and watch the pressure switch states on a drive. Then test the solenoid pack, since a weak pack can mimic a leaking body. Our 68RFE valve body testing guide covers the pressure checks and the vacuum test of the switch valve bore, and the Ram 2500 Cummins common problems guide shows how the OD clutch, valve body and cooling problems tie together.
This body is listed for 2010-2018 68RFE and 66RFE units with the 5 check ball layout. On the diesel side that means Ram 2500 and 3500 trucks with the 6.7L Cummins from 2010 through 2018. Transmission Digest notes the 2010 running change that removed the OD solenoid and moved to a gray pass-through connector, and the 2019 change to a blue connector with a separate TCC solenoid and a reverse solenoid. A white-connector 2007-2009 truck or a blue-connector 2019-up truck needs a different body. Check your connector color and ball count, or send us your year and VIN. Browse the rest of the lineup on the 68RFE parts page.
| Fits | 68RFE 2010-2018 |
| Part type | Sun Shell |
| 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 title is a catalog error. The part is a complete heavy-duty 5 check ball valve body for 2010-2018 68RFE and 66RFE units, less the solenoid block.
It removes one of the main causes, leaking switch valve plugs. If the clutches are already burned they still need replacing, and heat and power levels still matter.
No. 2007-2009 68RFE trucks use the white-connector design and a 7-ball body. This unit is for 2010-2018 gray-connector trucks.
No. 2019 and later units have a blue connector, a separate TCC solenoid and a different valve body.
No. Reuse your tested pack on a new gasket or buy a 2010-2018 gray-connector pack.
Fill with ATF+4, check the level hot at 160 degrees F or higher, clear codes and run a quick learn before the road test.
