Buy Lexus RX 350 Coil Spring Insulator (Right, Front, Lower). Suspension Coil Spring - Repair or SUSPENSION, Make - OEM Lexus Part # 4815848040 (48158-48040)

INSULATOR, FRONT COIL SPRING, LOWER RH

Fits RX 350 (2010 - 2015)

Suspension Coil Spring - Repair or Replace
Your coil springs are not especially prone to failure, but if they have been cut, clamped, or heated to have the vehicle lowered, your Lexus RX 350 might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Lexus service department to have your suspension system evaluated.