Mevotech SMS80659 Coil Spring Set - Rear

Rear Coil Spring Set for GM Full-Size Sedans

Mevotech SMS80659 is a rear coil spring set for select Buick, Cadillac, Oldsmobile, and Pontiac applications. It is built for vehicles that use a constant-rate rear spring and is listed for regular-duty service, with one Cadillac Seville application also noted for heavy-duty use.

Key Features

• Rear coil spring set for suspension service
• Constant-rate spring design for consistent rear ride support
• Application-specific fitment for select GM sedans and coupes
• Fits Buick LeSabre, Buick Park Avenue, Pontiac Bonneville, Cadillac Seville, Oldsmobile Aurora, and Buick Riviera rear suspension applications
• Mevotech SMS80659 cross-references Dorman - HELP 80659 for the same application

Detailed Description

Mevotech SMS80659 is a rear coil spring set engineered for select rear suspension applications on Buick LeSabre, Buick Park Avenue, Pontiac Bonneville, Cadillac Seville, Oldsmobile Aurora, and Buick Riviera models. The constant-rate spring specification supports predictable rear suspension response, making this part a direct replacement choice when restoring ride height and rear suspension function on compatible GM vehicles. This part number, SMS80659, is also referenced in interchange listings for related aftermarket applications.

Compatible fitment includes 2000-2005 Buick LeSabre, rear; 1997-2005 Buick Park Avenue, rear; 2000-2005 Pontiac Bonneville, rear; 1998-2004 Cadillac Seville, rear; 2001-2003 Oldsmobile Aurora, rear; 1995-1999 Oldsmobile Aurora, rear; and 1995-1999 Buick Riviera, rear. For shoppers searching for a rear coil spring set for a 2000-2005 Buick LeSabre or a rear suspension spring for a 1997-2005 Buick Park Avenue, SMS80659 matches the listed applications directly.

Common Repair Uses

• Restoring rear ride height after spring sag
• Replacing worn or weakened rear coil springs
• Addressing rear suspension noise related to spring wear
• Correcting uneven rear stance on compatible GM vehicles
• Servicing rear suspension on Buick LeSabre, Pontiac Bonneville, and Cadillac Seville models

Installation Notes and Tips

Verify the vehicle year, make, model, and rear suspension configuration before ordering. This part is listed for rear position only, and the fitment notes specify constant-rate spring applications with regular-duty service, plus one heavy-duty Cadillac Seville listing. Compare the existing spring shape and application details to confirm SMS80659 is the correct replacement before installation.

Quality Assurance

Mevotech is an established aftermarket suspension brand, and SMS80659 is cataloged with direct interchange references for application matching. This part cross-references Dorman - HELP 80659 for the same application.