Monroe 801662 Suspension Strut - Rear

Monro-Matic Plus Rear Strut for Select GM Cars

Monroe 801662 is a rear suspension strut for select Buick, Chevrolet, and Pontiac applications. It combines nitrogen gas charge with Velocity Proportional Valving to help deliver a more controlled ride at an economical price.

Key Features

• Monro-Matic Plus strut line for everyday ride control
• Nitrogen gas charged unit with automatic rod extension
• Velocity Proportional Valving (VPV) for improved comfort and response
• Rear suspension strut for select 1997-2009 GM passenger cars
• Mounting hardware included
• Extended bumper stop included
• Part number 801662

Product Details

Built for rear suspension service, Monroe 801662 is engineered to restore damping performance on vehicles such as the Buick Century, Buick Regal, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Prix, Buick Allure, and Buick LaCrosse. The Monro-Matic Plus strut line focuses on practical ride control, using gas-charged construction and VPV tuning to respond to changing road inputs while maintaining a comfortable daily-driving feel. This part cross-references Monroe Shocks & Struts 172286 for the same application.

Compatible With 1997-2005 Buick Century, rear; 1997-2004 Buick Regal, rear; 2000-2003 Chevrolet Impala, rear; 2000-2003 Chevrolet Monte Carlo, rear; 1997-2003 Pontiac Grand Prix, rear; 2004-2009 Chevrolet Impala, rear; 2004-2007 Chevrolet Monte Carlo, rear; 2004-2008 Pontiac Grand Prix, rear; 2005-2009 Buick Allure, rear; and 2005-2009 Buick LaCrosse, rear. Part number 801662 is also referenced in searches for rear strut replacement on Buick Regal and Chevrolet Impala models.

Common Problems This Strut Can Address

• Excessive rear bounce after bumps or dips
• Reduced ride control from worn suspension damping
• Noisy or unstable rear suspension behavior
• Uneven handling feel during braking or cornering
• Loss of comfort from aging rear struts

Installation Notes and Tips

Verify wheel size and package notes before ordering, since fitment varies by model and trim. This rear strut is listed with compressed length 15.53 in., extended length 23.09 in., body length 15.03 in., travel length 7.56 in., and reserve tube diameter 2.13 in. It uses a gas-charged strut rod that extends automatically, and the fitment data shows mounting hardware included. Confirm the vehicle’s rear suspension configuration and compare the original unit’s dimensions before installation.

Quality Assurance

Monroe positions the Monro-Matic Plus line as a value-focused suspension replacement with gas-charged construction and VPV technology for controlled ride performance. Part number 801662 is built for the listed rear applications and follows Monroe’s product-line specifications for fit and function.