Buy 1999 Buick Century Insulator. (Upper, Lower). All Models. Bonneville, LeSabre. Park Avenue. Suspension, Coil, Front - OEM Buick Part # 22166986

Coil Spring Insulator. Coil Spring Retainer. Suspension Strut Mount Reinforcement. Coil Spring Retainer. Spring seat. Stop plate. Strut support. Suspension Strut Mount Reinforcement. Washer.

Coil Spring RetainerSuspension Strut Mount ReinforcementCoil Spring Insulator

Fits Aurora, Deville , Lesabre, Park Avenue, Riviera

All Models. Bonneville, LeSabre. Park Avenue.
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 1999 Buick Century might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Buick service department to have your suspension system evaluated.