Toyota Sienna AWD Rear Differential Coupling 41303-28013

This is the rear differential coupling that sits between the propshaft and the rear differential on the all-wheel-drive Toyota Sienna. It replaces Toyota part numbers 41303-28013, 41303-28011 and 41303-28012, and fits the 2011-2018 Sienna AWD with either the 2.7L or 3.5L engine.

A worn coupling on these vans usually shows up as a growl or hum from the rear that changes with speed, a clunk or shudder when pulling away, or an AWD warning light. Check the coupling's electrical connector and pins for corrosion before you buy, since a bad circuit can set the light with a good unit.

Install notes: support the rear differential, index-mark and remove the propshaft, unplug the coupling connector, and unbolt the coupling from the differential nose. Clean the mating face, install the new coupling, torque to Toyota spec, reconnect the connector and propshaft on the marks, and top off the rear differential fluid. Check the propshaft studs on the new unit thread in cleanly before the job gets that far.