Rear Air Suspension Strut For Lexus LS430 UCF30 With Height Control 48090-50110 48080-50110

Q1: Which OE numbers are for which side? Rear Left: 48090-50110, 48090-50120, 48090-50130, 48090-50140. Rear Right: 48080-50110, 48080-50120, 48080-50130, 48080-50140. These are side-specific units — never mix left with right.

Q2: Which vehicles does this fit? Lexus LS430 (UCF30), 2001–2006 with the factory air suspension (spareto fitment lists LEXUS LS 2000–2006). Confirm the exact model/year and that the car has air suspension (not coil springs) by VIN.

Q3: What do the suffixes 110 / 120 / 130 / 140 mean? They are successive revision numbers of the same side-specific strut (110 → 120 → 130 → 140); the higher number is the newer revision. Match the exact number stamped on your original unit.

Q4: Is this the complete strut or just the air spring? The complete assembly — air spring bellows and shock absorber integrated into one strut, with top-yoke/bottom-eye mounting, ready to install as a direct replacement.

Q5: Does the LS430 rear air strut have electrical damping? The LS430 factory air suspension includes damping-force control — the strut carries the damping solenoid/electrical connector. Always confirm the connector against the original unit by VIN before ordering.

Q6: Do I need to replace both rear sides at the same time? Same-axle pair replacement is strongly recommended — the aftermarket parts are factory-designated paired articles (MM-AS191 ↔ MM-AS192), and an old unit on the other side causes uneven height and leveling.

Q7: What should I pay attention to during installation? Release the air suspension pressure per the workshop manual; protect the air fitting and electrical connector from dirt; after installation start the car and let the height control system re-level; check both sides' height and leaks before a road test.

Q8: Warranty policy and shipping damage? 18-month warranty under normal use. For shipping damage, inspect within 48 hours of receipt and send photos/video — the seller arranges a replacement.

Q9: Service life and maintenance? Depends on road conditions and climate. Keep the bellows clean and check for cracks during routine service; replace the complete unit if a bellows leak is found.

Q10: Are aftermarket alternatives available? Yes — Rear Left: Arnott AS-3074, JAPANPARTS MM-AS192, ASHIKA MA-AS192, JAPKO MJAS192 (plus A.S.P. MQ-AS192, GOLD GAS192). Rear Right: Arnott AS-3073, JAPANPARTS MM-AS191, ASHIKA MA-AS191, JAPKO MJAS191 (plus A.S.P. MQ-AS191, GOLD GAS191).