Shop 1999 Buick Century Insulator. Spring. (Upper, Lower). All Models. Aztek, Rendezvous. Grand Prix Coil, Springs, Models - OEM Buick Part # 22166979

Coil Spring Insulator. Suspension Coil Spring Cap. Suspension Strut Mount Reinforcement. Seat, Spare. Stop plate. Strut Mount retainer. Strut support. Suspension Coil Cap. Suspension Strut Mount Reinforcement. Washer.

Suspension Strut Mount ReinforcementSuspension Coil Spring CapCoil Spring Insulator

All Models. Aztek, Rendezvous. Grand Prix. Impala, Monte Carlo. LaCrosse. Montana SV6. Relay. Terraza, Uplander. 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 might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local service department to have your suspension system evaluated.