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68RFE Solenoid Kit

$400.99
In stock • ships from the USA • qualifies for FREE shipping

68RFE Solenoid Kit, new and ready to install. Fits the 68RFE. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

If your Ram 2500 or 3500 with the 6.7L Cummins and 68RFE six-speed has started flaring on upshifts while towing, dropping into limp mode on a grade, or setting pressure switch and solenoid circuit codes, the solenoid pack on top of the valve body is one of the first parts to check. This listing is a new Mopar-branded solenoid kit. The product photo shows the solenoid pack together with a pan filter and pan gasket, so the job of dropping the pan and swapping the pack can be done with fresh service parts in one pass.

What the solenoid kit does in a 68RFE

The 68RFE is a clutch-to-clutch design: on every shift one clutch drains while the next one fills, and there are no bands or sprags to cover a sloppy handoff. The solenoid pack is what times those events. It bolts to the front plate of the valve body and carries the clutch solenoids, the line pressure solenoid and a set of pressure switches that report back to the computer. Sonnax describes five pressure switches in the RFE system that close at roughly 22 psi and release at roughly 11 psi. When a solenoid is slow or a switch never sees pressure, the computer logs a fault and often defaults to a limp gear to protect the clutches. Behind a diesel making this much torque at low rpm, a pack that is even slightly slow shows up as heat and slip long before it shows up as a hard failure.

Symptoms that point to the pack

Keep in mind that the 68RFE has known weak spots that mimic a bad pack, including low/reverse switch valve wear, overdrive clutch heat damage on towing trucks, and converter wear from overheating. Our 68RFE Ram 3500 shift problem guide walks through how to separate them.

How to confirm it before you buy

Pull codes with a scan tool that reads transmission data, not just engine codes. Look at commanded versus actual line pressure: GEARS Magazine gives a healthy idle figure of 60 to 70 psi with the two numbers close together. A wide gap points toward pressure supply rather than the pack. Next, unplug the pass-through connector and measure solenoid resistance; Sonnax lists the clutch solenoids at about 1.3 ohms and the line pressure solenoid at about 4.3 ohms at room temperature. A coil that is open, shorted, or far off spec is your answer. Our 68RFE shift solenoid testing guide covers each step, including how to rule out the harness and case connector first.

Fitment

This kit is listed for the 68RFE without a year range, so check it against your truck before ordering. Chrysler changed the 68RFE pack over the years. Transmission Digest describes the early white-connector pack, a gray-connector pack from around 2010 that dropped the overdrive solenoid, and a blue-connector 2019-up design that added a separate converter clutch solenoid and a reverse clutch solenoid. The pack in this photo has a light-colored connector, not blue, which places it with the pre-2019 design. If your truck is a 2019 or newer, look at the 2019-up 68RFE solenoid kit instead. If you are not sure which generation you have, compare the color of your case connector with the photo or send us your year and VIN and we will confirm it. You can browse every part for this transmission on the 68RFE parts page.

Install notes

If the truck tows hard, adding a 68RFE transmission cooler helps keep fluid temperatures down so the new pack and the clutches it controls last longer.


Specifications

Fits68RFE
Part typeSolenoid Kit
ConditionNew
BrandMopar
ShipsFrom the USA
Warranty1-year

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

65RFE Valve Body 2009
65RFE Valve Body 2009
$286.99

68RFE Solenoid Kit: common questions

Will this kit fit my 2019 or newer Ram with the 68RFE?

The pictured pack has a light-colored case connector, which matches the pre-2019 design. 2019-up trucks use a blue-connector pack with a separate converter clutch solenoid and a reverse clutch solenoid, so they need the 2019-up kit. Send us your year and VIN if you want us to confirm.

What comes in the box?

The product photo shows a new Mopar-branded solenoid pack with a pan filter and pan gasket. Compare the photo with what you need before ordering, and contact us with any question about contents.

Do I need to remove the valve body to change the solenoid pack?

The pack mounts to the valve body front plate, so on most trucks the valve body comes out with it after the pan is dropped. Reinstall the pack with 53 in-lb on its Torx bolts and use new seals.

What fluid does the 68RFE take after the install?

ATF+4. Check the level with the fluid at operating temperature, at least 160 degrees F, rather than cold, or the reading will be off.

Do I have to do a relearn after replacing the pack?

Yes. Clear codes, run a quick learn with a scan tool that supports it, then drive 10 to 15 full shift cycles so the computer adapts to the new solenoids.

My truck sets P0871. Is the pack always the cause?

Not always. P0871 is a pressure switch rationality fault. A failed switch in the pack is common, but low line pressure, a damaged harness or a valve body problem can trigger it too, so check line pressure and wiring first.


Repair guides for this job

Sources
  1. Transmission Digest — Spotting different 68RFE designs through the years to avoid issues. White, gray and blue connector pack generations, the gray pack dropping the overdrive solenoid, and the gasket mix-up symptoms. www.transmissiondigest.com/spotting-different-68rfe-designs-through-the-years-to-avoid-issues/
  2. Sonnax — Dodge RFE Pressure Switch Diagnosis and Code P0871. Five pressure switches in the RFE system closing near 22 psi and releasing near 11 psi. www.sonnax.com/tech_resources/1438-dodge-rfe-pressure-switch-diagnosis-code-p0871
  3. Sonnax / Transend — 45RFE, 545RFE, 65RFE, 66RFE, 68RFE Universal Remanufactured Valve Body Tech and Install Tips. 53 in-lb solenoid pack bolts, 105 in-lb pan bolts, solenoid resistance chart and quick learn procedure. cdn.transend.us/img/S72740-US-Instructions.PDF
  4. GEARS Magazine (ATRA) — Fixing the Root Cause of the Problem: Solving Issues with the 68RFE Transmission. Healthy idle line pressure of 60 to 70 psi with commanded and actual close together. gearsmagazine.com/magazine/fixing-the-root-cause-of-the-problem-solving-issues-with-the-68rfe-transmission/

68RFE Solenoid Kit

$400.99
In stock • ships from the USA • FREE shipping • 30-day returns

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