How to Replace Wiper Transmission Motor 05-10 Chrysler 300

Difficulty: Intermediate · About 90 min · Chrysler 300

Replace the windshield wiper motor and linkage assembly on a 2005–2010 Chrysler 300 by marking the parked arm position, removing the cowl, and checking the final sweep.

Steps

1. Mark and remove the wiper arm

   Use painter's tape to mark the blade's parked position on the windshield. Remove the arm cap and retaining nut, loosen the arm at its pivot, and lift it off the spindle.

2. Remove the cowl and unplug the assembly

   Release the cowl pushpins and corner screws, then lift the panel out of its metal retainers. Disconnect the wiper motor harness and remove the transmission mounting bolts before lifting the assembly out.

3. Separate the motor from the linkage

   Remove the motor's Torx fasteners and carefully release the linkage from its crank. Keep track of the captured nuts and the crank's orientation so the replacement can be assembled in the same position.

4. Attach the motor to the replacement linkage

   Place the motor onto the new transmission and engage the linkage at the crank. Refit the captured nuts and fasteners, then confirm the linkage moves freely by hand without binding.

5. Install the transmission and cowl

   Set the assembly into its mounts, tighten the retaining bolts to the vehicle specification, and reconnect the harness. Refit the cowl panel, corner screws, and pushpins without trapping the wiring.

6. Set the arm and test the wipers

   Run the motor briefly so it reaches its parked position, then install the arm at the tape mark and tighten its nut to specification. Replace the cap and test the full sweep for correct clearance and parking.

Check your vehicle’s repair manual for exact specifications and fit.