4891450031 Toyota COMPRESSOR HEIGHT, Price: 1417.01$, Weight: 3.1kg

Air Suspension Height Control Compressor for Smooth, Level Ride

This unit keeps your luxury sedan at the correct ride height in every condition. It maintains comfort, stability, and even headlight aim, and compensates for passengers or cargo. By supplying precise air pressure to the air springs, the height system prevents sagging, scraping, and uneven tire wear while preserving the refined ride your car was built for.

How It Works ⚙️

An electric motor drives a piston pump that pulls air through a desiccant dryer, compresses it, and feeds a reservoir and air struts via check valves and a solenoid block. The control module reads height sensors and commands the pump to raise the body or opens valves to lower it. A relief valve protects from overpressure, and rubber isolators cut vibration and noise.

What Happens If It Fails ❗

• Sagging or uneven stance after parking
• Slow lift or no lift; warning on dash
• Loud buzzing/grinding; pump runs constantly
• Harsh ride, bottoming out, poor handling
• Moisture in lines, premature air spring wear
• Mis-aimed headlights and extra tire wear

Tech Tips for Replacement

Check air springs and lines for leaks before installing. Replace dryer media, inspect relay and fuse, and torque mounts to spec. Use new O-rings on fittings, avoid over-tightening, clear codes, and perform ride-height calibration for proper leveling and long service life.

Compatibility

• Century