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STC4543 - Vacuum Reservoir

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- €37,30
€37,30
€37,30 - €37,30
€37,30
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 Reservoir within the engine vacuum control circuit on diesel applications.

The reservoir holds a reserve of vacuum that operates the turbocharger and related vacuum-actuated controls. By storing vacuum it keeps a stable supply to the control actuators when manifold vacuum fluctuates with engine load, so the actuators respond consistently.
Vehicle Model Land Rover Freelander 1 1996-2006 (L314)
Range Rover 2002-2012 (L322)
Fitment Notes FREELANDER 1 1997-2006 — M47 2.0L 4-Cyl Diesel, Turbocharger Vacuum Controls, Inlet Manifold Vacuum Reservoir
RANGE ROVER L322 2002-2009 — M57 D30 3.0L Diesel, Turbocharger Vacuum Reservoir
Alternative Codes
STC4543

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Frequently asked questions

What does the STC4543 vacuum reservoir do?
The STC4543 vacuum reservoir stores a reserve of vacuum in the engine's vacuum control circuit on diesel models. It keeps a steady supply to the turbocharger and related actuators when manifold vacuum drops under load, so the vacuum-controlled parts respond consistently.
Which Land Rovers use the STC4543 vacuum reservoir?
The STC4543 fits the Freelander 1 with the M47 2.0 litre four-cylinder diesel and the Range Rover L322 with the M57 3.0 litre diesel. It sits in the turbocharger vacuum control circuit on both. This is a diesel-specific part, so confirm your engine before ordering.
What are the signs a vacuum reservoir has failed?
Typically a cracked or leaking vacuum reservoir loses its stored vacuum, so the turbocharger and vacuum-controlled actuators stop responding properly. On these diesels that usually shows as lost boost, sluggish response, or a limp-home condition. A split casing or perished connections are common causes.
Is the STC4543 the same part for both the Freelander 1 and Range Rover L322?
Yes, the STC4543 is the single part number listed for both the Freelander 1 M47 2.0 diesel and the Range Rover L322 M57 3.0 diesel. Both use it in the turbocharger vacuum control circuit, so one reservoir covers both applications.