KYB 5550015 Suspension Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Grand Cherokee

The KYB Gas-a-just 5550015 is a rear suspension shock absorber for Jeep Grand Cherokee models with normal suspension. It combines a responsive hydraulic working area with a high-pressure nitrogen gas chamber to deliver controlled ride quality during everyday driving and firmer response when road conditions change.

Compatible with 2011-2021 Jeep Grand Cherokee rear applications, this shock is built for drivers replacing worn OE-style dampers on vehicles without air, electronic, load leveling, or sport suspension setups.

Key Features

• Monotube shock absorber design for consistent damping response
• Air-free hydraulic piston and valve area for control and responsiveness
• Separate high-pressure nitrogen gas chamber with floating piston
• Helps maintain ride comfort during normal driving
• Rear fitment for Jeep Grand Cherokee normal suspension applications
• Part number 5550015 for easy catalog matching

Product Details

KYB Gas-a-just shocks are engineered with two separate working chambers to manage ride quality and suspension response. The monotube layout helps reduce fade from aeration, while the gas chamber supports immediate performance when the suspension is working harder. This makes the KYB Gas-a-just 5550015 a practical replacement for a Jeep Grand Cherokee rear shock when restoring damping control and road feel.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. It also cross-references Mopar part numbers 68069671AE and 68069675AD.

What It Helps Address

• Excessive rear bounce after bumps
• Loose or unsettled ride quality
• Reduced damping control from worn shocks
• Rear suspension noise caused by degraded shock performance
• Uneven handling feel on Jeep Grand Cherokee rear suspension

Installation Notes

Fits 2016-2021 Jeep Grand Cherokee, rear, normal suspension except air and electric suspension and without load leveling suspension. Fits 2011-2015 Jeep Grand Cherokee, rear, except air suspension, electronic suspension, load leveling suspension, and without sport suspensions. Verify upper mount type S1 (12MM), lower special mount style, and compressed length 16.53 in., extended length 22.52 in., and stroke length 5.99 in. before installation.

Quality Assurance

KYB is known for OE-level suspension engineering, and the Gas-a-just line uses a monotube design to support consistent damping performance across changing road conditions. Part number 5550015 is built to match the listed rear Grand Cherokee applications and interchange references for accurate replacement selection.