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571957 - Vacuum Actuator

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- €237,00
€237,00
€237,00 - €237,00
€237,00
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Vacuum Actuator for the centre differential lock on the LT95 four-speed gearbox.

Driven by engine manifold vacuum, the actuator piston moves the diff-lock selector fork, engaging the sliding dog that locks the centre differential to couple the front and rear output drives. It mounts on the selector fork housing at the front output. Fitted to V8 manual applications.
Alternative Codes
571957

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Frequently asked questions

What does the 571957 vacuum actuator do?
The 571957 vacuum actuator engages the centre differential lock on the LT95 four-speed gearbox. Engine manifold vacuum drives its piston, which moves the diff-lock selector fork to lock the centre differential and couple the front and rear outputs. It's used on V8 manual applications.
Where is the 571957 vacuum actuator fitted?
The 571957 mounts on the diff-lock selector fork housing at the front output of the LT95 gearbox. It connects to the manifold vacuum supply and acts directly on the selector fork, so access is from the gearbox transfer area underneath the vehicle.
What are the signs the 571957 vacuum actuator has failed?
A failed vacuum actuator typically won't hold vacuum once its internal diaphragm perishes, so the centre diff lock won't engage or release properly. The lock may stick or fail to operate. Testing the actuator for vacuum leaks usually confirms whether it needs replacing.