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AULINK 6422300165 Brake Booster Vacuum Pump 724807390 for 2007-2012 Mercedes-Benz (Engine 3.0L 3.5L) W251 W221 W211 X164 W164 R320 R350 S350 E320
AULINK Engine Vacuum Pump stands out as the smart option. Affordable, reliable and built to last,
Vacuum pump is to evacuate the air from the brake booster tank, thus creating vacuum, used for brake application
- Features & Benefits:
- Direct-fit OE replacement ensures proper fit, form, and function, which leads to a trouble-free installation.
- High-quality O-rings and seals prevent leaks and maintain proper vacuum pressure.
- Machine-cut pulley shaft ensures OE-matching dimensions for precise fit and ease of installation.
- Undergoes 100% pressure testing to prevent leaks and ensure OE-matching performance.
What does a vacuum pump do?
The vacuum pump aims to provide a vacuum to several different places in the engine bay. The booster on power brake systems is one of the critical components that require a vacuum.
The vacuum pump makes sure that the booster stays under constant vacuum to provide adequate braking force.
Emissions solenoids and turbocharger wastegate actuators also require a vacuum to perform as intended. If these parts don't receive a vacuum,
they won't function properly and trip a corresponding check engine light.
Symptoms of a Bad or Failing Vacuum Pump
Chad
Reviewed in the United States on June 16, 2023
This was prime available and works fine, no issues since installing. Way cheaper than auto parts stores.
Michael Ou
Reviewed in the United States on November 29, 2022
It is direct fit for my 2009 ML320 and 1/4 of the price of the original one. Have driven 400 miles on it so far and no problem at all.
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