Monroe MA824 Air Suspension Shock - Rear

Monroe Max-Air MA824 Rear Air Shock Absorber

The Monroe Max-Air Air Shock Absorber MA824 is built for rear suspension support when towing or hauling adds extra load to the vehicle. It can be inflated or deflated up to 150 PSI to help maintain ride height under added weight, with capacity limited by the vehicle suspension, tires, and transmission.

Key Features

• Air-adjustable rear shock absorber for load-leveling support
• Inflates or deflates up to 150 PSI for height control
• Supports additional weight up to 1,200 lbs. within vehicle limits
• Rubber dust shield helps protect the shock assembly
• Compressed and extended bumper stops included in the design
• Loop bushing and sleeve mounts at both upper and lower positions
• Upper and lower mounting code: LS26

Product Details

Monroe Max-Air shock absorbers are part of the Max-Air Air Shock Absorber line, a product family focused on rear suspension control for vehicles that carry changing loads. The MA824 uses a loop bushing and sleeve mount configuration with a 12 mm sleeve ID at the lower mount and a 38.1 mm sleeve OAL at the upper mount. Its compressed length is 12.75 inches, extended length is 20.125 inches, and travel length is 7.375 inches. This part cross-references Monroe Shocks & Struts 504549 and Walker Exhaust 49230 for the same application.

Compatible With 2005-2009 Chevrolet Uplander, rear; 2005-2009 Pontiac Montana, rear; 2005-2007 Buick Terraza, rear; 2005-2007 Saturn Relay, rear; 2001-2005 Pontiac Aztek, rear; 1999-2005 Pontiac Montana, rear; 1997-2004 Oldsmobile Silhouette, rear; and 1997-1999 Pontiac Trans Sport, rear. For many applications, the notes specify towing and hauling use, and some vehicles require the AK29 adapter kit when converting to air-adjustable shock absorbers without rear air leveling systems.

Common Uses

• Rear sag when towing a trailer
• Loss of ride height after adding cargo or passengers
• Uneven rear stance under load
• Need for adjustable rear suspension support on Chevrolet Uplander, Pontiac Montana, Buick Terraza, Saturn Relay, Pontiac Aztek, Oldsmobile Silhouette, or Pontiac Trans Sport applications
• Replacement of a worn rear air shock absorber such as the Monroe MA824

Installation Notes

• Verify rear suspension configuration before ordering, especially whether the vehicle has automatic rear air leveling or independent rear suspension.
• Some applications require the AK29 adapter kit when adapting air-adjustable shocks to vehicles without rear air leveling systems.
• Confirm upper and lower mount style, sleeve dimensions, and shock length against the original part.
• Follow the vehicle owner’s manual for load limits and suspension-related guidance.

Quality Assurance

Monroe designs the Max-Air line for adjustable rear load support and suspension height control in towing and hauling conditions. The MA824 is built with dust shielding and bumper stop features to support durable service in rear suspension applications.