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Vacuum Pump ERR3539 1504992 for DISCOVERY I/DEFENDER CabrioPart Name: Brake/Alternator vacuum pump, Brake booster pump, Vacuum pump Assy
Ref. Number: ERR3539, 1504992
Models Applied: LAND ROVER
LAND ROVER RANGE ROVER I 1970-1995
LAND ROVER DISCOVERY I (LJ, LG) 1989-1998
LAND ROVER DEFENDER Cabrio (LD) 1990-Engine:
Condition: Brand new Aftermarket high quality part
Features: Customized order is available , based on drawings/samples.
What is vacuum pump?Vacuum pumps are used in vehicles where the necessary vacuum cannot be generated by the intake manifold, for example, direct injection and turbo engines with variable valve timing.
The pump generates a negative pressure of between 750 and 850 mbar by drawing air out of the vacuum system. The pump works through positive displacement to move air from the vacuum system and then through the crankcase ventilation into the air intake system.
The vacuum pump is driven by the alternator rotor shaft. The Vacuum generated will be supplied to the high actuation force needed to control components such as:
- Brake boosters;
- Secondary air valves;
- Exhaust gas recirculation (EGR) valves;
- Turbocharger controls;
- Central locking systems