Refurbished 68RFE solenoid block pack bundled with the pan filter, spin-on filter and pan gasket, so the solenoid swap and a fluid service happen together.
When a Ram 2500 or 3500 with the 6.7L Cummins and 68RFE goes into limp mode with solenoid or pressure switch codes, and the valve body underneath has tested good, the solenoid block is the part to replace. This kit is a refurbished solenoid and pressure switch block packaged with the three service items you need once the pan is off: the pan filter, the spin-on secondary filter, and the pan gasket. One box covers the electrical repair and the fluid service in a single job.
The block bolts to the top of the valve body and is the computer's only way to move oil. Each solenoid opens or closes a circuit that applies a clutch or sets line pressure. The same housing holds five pressure switches, one per clutch circuit, which close at about 22 psi and open again at about 11 psi so the computer can confirm a clutch really got oil. When a coil weakens, a switch sticks, or the housing cracks, the computer sees a commanded state that never shows up on its switch, sets a code, and drops the truck into a limp gear to protect it.
Do not buy a block for a valve body problem. With the engine running and the selector in Reverse, all five pressure switches should read open; any that read closed point to a fault that must be found first, and a reading that flickers when you wiggle the case connector points to wiring. A full house of solenoid codes at the same moment usually means a shared power feed or ground, not five dead solenoids. On the other side, Sonnax reports that P0871 is caused by worn valve body bores about 90 percent of the time, so a returning P0871 is a reason to test the casting instead. Our 68RFE shift solenoid testing guide covers all three checks, and the valve body testing guide covers vacuum testing the bores.
The listing cross-references 04799654AC, 4799654AC, 52119435AF, 52119435AB and 5170877AF, and it is shown for the 68RFE as well as the 45RFE and 545RFE that share the block design. The important check is the connector generation. Chrysler used white-connector packs with an overdrive solenoid through 2009, gray-connector packs without it from 2010 to 2018, and a blue-connector design from 2019 on with a separate converter clutch solenoid. Match the part number on your old block and its connector color to this kit before ordering, or send us your year and VIN. If you need a different version, browse the 68RFE parts collection.
Drain the fluid and drop the pan, then remove the old pan filter and the spin-on filter. Unbolt the block from the valve body and lift it straight off so the connector seal is not torn. Lube the new O-rings with ATF+4, seat the block by hand, and torque the Torx bolts to the 53 inch-pound value Sonnax publishes for the RFE family; overtightening cracks the housing. Install the new pan filter and spin-on filter, lay the new gasket on a clean pan rail, and fill with ATF+4. Check the level with the fluid hot, clear codes, and run the quick learn so shift adapts reset. If testing showed a worn casting, a complete 68RFE valve body is the better buy, and if the pan shows clutch debris, plan on a 68RFE overhaul kit.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
A refurbished solenoid and pressure switch block, the pan filter, the spin-on secondary filter and a pan gasket.
The listing cross-references 04799654AC, 4799654AC, 52119435AF, 52119435AB and 5170877AF. Compare the number on your old block before ordering.
Check carefully. 2019-up trucks use a blue-connector design with a separate converter clutch solenoid, so match the connector color and part number on your existing block first or send us your VIN.
No. The block bolts to the top of the valve body and comes off with the pan dropped. The valve body can stay in the transmission.
Sonnax lists 53 inch-pounds for the RFE solenoid pack bolts. Overtightening can crack the housing.
Yes. Clear the codes and run the quick learn with a scan tool so the computer resets its shift adapts.
