Buy 2019 Lexus RC 300 Coil Spring Insulator (Left, Right, Rear, Upper). Suspension Coil Spring - LDH, Clamped, Benefit - OEM Lexus Part # 4825730080 (48257-30080)

REAR COIL SPRING, UPPER; REAR COIL SPRING, UPPER LEFT; REAR COIL SPRING, UPPER RIGHT.

INSULATOR, REAR COIL SPRING, UPPER RH INSULATOR, REAR COIL SPRING, UPPER LH INSULATOR, REAR COIL SPRING, UPPER

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 2019 Lexus RC 300 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.