Differential Locking Actuator – GM (87849210)

Differential Locking Actuator opens, closes or modulates a passage in the engine or transmission circuit. Spring rate and orifice size are calibrated to the application, not selected by size.

Replace the Differential Locking Actuator when the valve does not return freely, when the seat is pitted, or when a solenoid that drives it has already been replaced. Debris in the circuit damages the new one the same way.

This Differential Locking Actuator is listed as part 87849210 (Sensors & Switches). Where a number has been superseded, the current reference is the one that ships, so check any supersession note before ordering.

Genuine GM supplied for this Differential Locking Actuator, with the engineering number unchanged from the factory reference stamped on the original.