Shop 68RFE Parts →
The 68RFE sits behind the 6.7L Cummins in 2007.5-and-later Ram 2500 and 3500 trucks. When one starts shifting erratically, hanging between gears, or dropping into limp, the solenoid pack is one of the first parts named. Sometimes that is right. Often it is not, and this page is as much about not buying the wrong part as it is about the price.
Plan on $500 to $950 installed for a 68RFE solenoid pack replacement, or $250 to $450 in parts and fluid if you do the work yourself.
Cost Breakdown
| Line Item | Typical Range | Notes |
|---|---|---|
| Solenoid pack, OE Mopar | $350 - $550 | Includes the integrated pressure switches |
| Solenoid pack, quality aftermarket | $200 - $350 | Brand quality varies more than price does |
| Labor | $180 - $400 | 2 to 3 hours, pan down, pack unbolted from the valve body |
| ATF+4 fluid, filter, pan gasket | $90 - $160 | Pan drop takes roughly 5 to 6 quarts |
| Quick-learn / relearn | $0 - $150 | Scan-tool procedure after the pack is replaced |
What the Solenoid Pack Actually Is
On the 68RFE the solenoids are not individual screw-in units the way they are on many GM transmissions. They come as one serviceable block that bolts to the valve body inside the pan, with the pressure switches integrated into the same assembly. That matters for two reasons: you cannot replace one failed solenoid in isolation, and a pressure switch fault reads as a solenoid pack fault on the invoice even though nothing electrical about the solenoids is wrong.
The pack is accessible with the transmission in the truck. Drop the pan, drop the filter, unbolt the pack, disconnect the internal harness, and transfer. It is not a difficult job. The difficulty is deciding whether it is the right job.
Before You Buy a Solenoid Pack, Rule Out the Overdrive Clutch
This is the single most expensive mistake made on 68RFE trucks. The overdrive clutch pack is the known weak point in this transmission, particularly on tuned or towing trucks. When the overdrive clutch starts slipping, the transmission commands a shift, the clutch does not hold, the controller sees the mismatch, and it sets pressure and ratio codes that look like a solenoid problem.
A new solenoid pack will not fix a burnt overdrive clutch. The truck drives the same after the repair, the codes come back, and you are out $700 with the original problem intact.
How to tell them apart
- Drop the pan and read it. Black clutch fiber in the pan and on the magnet means friction material is being shed. That is the clutch, not the solenoids.
- Check whether the fault is gear-specific. A failure that only shows up in the higher gears under load points at the overdrive clutch. Solenoid faults tend to be less selective and often come with hard electrical codes.
- Look at pressure switch codes carefully. Overdrive pressure switch rationality codes are frequently reporting a real hydraulic condition, not a bad switch.
- Consider the truck's history. A tuned, towing, high-mileage 68RFE that has never been apart is a rebuild candidate. Assume the clutch until the pan tells you otherwise.
Symptoms That Really Do Point at the Solenoid Pack
- Erratic shifting that changes character from one drive cycle to the next, with a clean pan
- Hard electrical codes on a specific solenoid circuit rather than performance or rationality codes
- An immediate drop to a default gear on startup, before the transmission has been loaded at all
- Shift behavior that changes with transmission temperature in a way that tracks an electrical fault, not clutch slip
Fluid: ATF+4 Only
| Spec | 68RFE |
|---|---|
| Fluid | ATF+4. Not Dexron, not Mercon, no substitutes. |
| Pan drop refill | Roughly 5 to 6 quarts |
| Total fill with converter | Roughly 17 to 18 quarts |
| Filters | Primary filter in the pan. Many trucks also have a spin-on cooler-return filter. Check yours. |
ATF+4 is not a marketing preference on this transmission. The friction material and the clutch apply strategy were developed around its specific friction characteristics, and a universal fluid will produce shudder and shift complaints that look like mechanical failure.
After the Pack Is In
- Run the quick-learn / relearn procedure with a capable scan tool. Skipping it leaves the transmission shifting off stale adaptive values and feeling worse than it did before the repair.
- Clear the codes and drive it through a full range of shifts, including the higher gears under moderate load.
- Recheck the level warm, using the factory temperature-based procedure rather than a cold reading.
- Rescan for returning codes after 100 miles. If the same pressure or ratio codes come back, the fault was never electrical and the clutch pack is next.
68RFE Parts, Same-Day Ship
Solenoid packs, filters, gasket kits, overdrive clutch packs, and full rebuild kits for the 68RFE. Order before 2pm Eastern and it ships the same day.
Shop Gearbox Insider → Core Transmission Parts →FAQ
Can I replace the 68RFE solenoid pack myself?
Yes, if you can safely support the truck and keep the work area clean. The pan comes down, the filter comes out, the pack unbolts from the valve body. The part most DIYers cannot do at home is the scan-tool relearn afterward, and the transmission will shift poorly without it.
Are aftermarket solenoid packs worth the savings?
Some are, some are not, and price alone will not tell you which is which. Given the labor already invested in the job, a known-good OE or premium aftermarket unit is usually the better economic choice over saving $120 on the part.
Why did my codes come back after a new pack?
Almost always because the underlying fault was hydraulic or mechanical. On a 68RFE that means the overdrive clutch first, then valve body wear. The solenoid pack was reporting a real condition it did not cause.
Does a solenoid pack fix harsh shifting?
Only if the harsh shift traces to a pressure control fault. Harsh shifting on a 68RFE is also caused by low or contaminated fluid, stale adaptive values that need a relearn, and worn clutch packs. Work through the cheap causes first.