Replaces the failed solenoid block and both filters on Chrysler 545RFE and 45RFE units to clear P0700 limp mode and harsh 1-2 shifts.
A 545RFE that has started shifting hard from first to second, lost second or fourth, or dropped into limp mode with P0700 is one of the most common jobs on a Ram 1500, Durango, Dakota or Jeep Commander. This kit replaces the solenoid block and both transmission filters together. The listing cross references are 68002342AD, 5170877AA and 52119435AB, and the kit includes the solenoid block assembly, the pan filter and the cooler-return filter. Shipping weight is about 6 lb.
The 545RFE is the five-speed version of the 45RFE and shares its case and its solenoid block. Every gear is made by the computer applying clutches through the block: low/reverse, 2nd clutch, 4th clutch, underdrive and overdrive, with a multi-select solenoid that routes oil to the low/reverse or overdrive circuit depending on gear, and a pressure control solenoid that sets line pressure. Fifth gear in the 545RFE uses the 2nd clutch with overdrive, so a weak 2nd clutch circuit can show up as both a 1-2 problem and a fifth gear problem. Five pressure switches in the block tell the computer what actually applied, and if what it reads does not match what it commanded, it sets a code.
Sort the codes first. Circuit codes are electrical: Chrysler tests each solenoid by pulsing it and listening for the inductive kick from the coil, and three misses set the code. Those point at the block, the harness or the controller, not the hydraulics. Rationality codes are different. Chrysler's own cause list for P0871 includes damaged check balls, cut piston seals and a broken reaction shaft support seal ring, none of which a new block fixes. If every pressure switch reads open with line pressure under 40 psi, you have a pressure problem; start with the 45RFE and 545RFE pump guide. For the bigger picture on this family, read 45RFE and 545RFE problems and fixes.
Listed fitment: Ram 1500 2002-2012 (3.7L, 4.7L, 5.7L), Ram 2500 2004-2011 (4.7L, 5.7L), Ram 2500/3500 2007-2017 6.7L, Dakota 2000-2011 (4.7L, 5.7L), Durango 1998-2011 (3.6L, 4.7L, 5.7L), Aspen 2007-2009, Raider 2007-2010 4.7L, Grand Cherokee 1999-2004 4.7L and 2009-2011 5.7L, Commander 2006-2011, Liberty 2005-2006 (2.8L, 3.7L) and Wrangler 2007-2011 2.8L. The 6.7L trucks run the 68RFE, which the listing includes under the same service numbers. Across these years Chrysler changed the pack, including a 2010 gray-connector version that dropped the overdrive solenoid, so match the part number on your old block to one above before ordering. If it does not match, send us the year, model and VIN. All our parts for this family are on the 45RFE and 545RFE collection page.
Replacing the filters is not optional here. A plugged cooler-return filter starves the same circuits the new block feeds, and it can restrict flow through the cooler; our cooler line and flow check guide explains how to verify flow. If the unit has slipped long enough to burn clutches, a 45RFE/545RFE master rebuild kit or a 545RFE pump for 2009-2011 may be needed with it.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. The two share the case and the solenoid block, and the listing also includes the 68RFE in 2007-2017 6.7L Ram 2500/3500 trucks. Match the part number on your old block to 68002342AD, 5170877AA or 52119435AB before ordering.
The main pan filter and the cooler-return filter that screws into the case. Both should be replaced every time the block is changed.
If the block has solenoid circuit codes or a failing 2nd clutch pressure switch, often yes. If line pressure is low or the 2nd clutch is worn, it will not, so check the codes and pressure first.
ATF+4 only. Other fluids can change shift feel and adaptive learning on these units.
Yes. Run the Quick Learn with a scan tool after the fill, then drive normally so the computer can refine its clutch fill values once the fluid is warm.
