Monroe 911228 Shock Absorber - Rear

Monroe Reflex Light Truck Shock Absorber 911228

The Monroe Reflex Light Truck Shock Absorber 911228 is built for rear suspension applications on select Chevrolet Colorado, GMC Canyon, Isuzu i-290, and Isuzu i-280 models. It uses ASD valving technology that responds to changing road inputs to help control body motion in vehicles with a higher center of gravity.

Key Features

• Monroe Reflex Light Truck Shock Absorber line for rear suspension use
• ASD valving technology automatically adjusts damping response to road impact
• Helps reduce vehicle roll and dive during braking and cornering
• Dust shield included with metal dust shield material
• Compressed length: 13.375 in; extended length: 21 in; travel length: 7.625 in
• Lower mount: loop bushing and sleeve mount, 9/16 in sleeve ID x 1.5/8 in sleeve OAL
• Upper mount: cross pin mount, closed ended, 5/16 in hole ID, 2.7/8 in pin length

Product Details

Monroe 911228 is a rear shock absorber engineered for light truck and SUV-style suspension demands where ride control matters. The Reflex Light Truck Shock Absorber product line focuses on damping response that adapts to impact conditions, helping stabilize the vehicle under load transfer and uneven pavement. This part cross-references KYB 344464 for the same application.

What This Shock Absorber Helps Address

• Excessive rear-end bounce over rough roads
• Body roll during turns in higher-center-of-gravity vehicles
• Nose dive and rear instability during braking transitions
• Reduced control from worn rear shock absorbers
• Uneven ride quality on daily driving and light-duty hauling

Installation Notes and Fitment

Compatible with rear suspension applications on 2004-2012 Chevrolet Colorado, rear; 2004-2012 GMC Canyon, rear; 2007-2008 Isuzu i-290, rear; and 2006 Isuzu i-280, rear. Verify mounting style, compressed length, and extended length against the original shock before installation. The listed upper and lower mounting configurations should match the vehicle’s existing hardware points for proper fitment. Monroe 911228 is a direct-fit rear shock absorber for these applications.

Quality Assurance

Monroe backs this shock absorber with a limited lifetime warranty on the listed applications. The Reflex Light Truck Shock Absorber line is built around controlled damping response for rear suspension service on light truck platforms such as the Chevrolet Colorado and GMC Canyon.