KYB 5530017 Suspension Shock Absorber - Rear

KYB Gas-a-just Rear Shock Absorber

The KYB Gas-a-just 5530017 is a rear suspension shock absorber built as an OE monotube replacement for vehicles that need restored control and consistent ride response. It is engineered for the 2015-2020 Mercedes-Benz GLA250 rear and the 2017-2019 INFINITI QX30 rear, making it a direct-fit option for drivers replacing worn factory shocks.

Key Features

• Monotube shock absorber design for responsive damping
• Air-free hydraulic piston and valve area for control during normal driving
• High-pressure nitrogen gas chamber with floating piston for added performance on demand
• Rear application for Mercedes-Benz GLA250 and INFINITI QX30
• Compressed length: 17.87 in; extended length: 25.83 in; stroke length: 7.96 in
• Lower mount type: E2 (10.2x48); upper mount type: S1 (10MM)
• Dust cover included

Product Details

KYB Gas-a-just shocks are part of the Gas-a-just line, which focuses on OE-style monotube replacement performance. This design separates the hydraulic working area from the high-pressure nitrogen gas chamber, helping the shock respond smoothly in everyday driving while providing firmer control when suspension demand increases. The KYB 5530017 is a practical choice for restoring rear suspension behavior on the Mercedes-Benz GLA250 and INFINITI QX30.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems It Can Address

• Excessive rear bounce after bumps
• Reduced stability over uneven pavement
• Worn or inconsistent damping from aging factory shocks
• Rear-end float or poor body control during normal driving
• Noisy or harsh ride caused by a deteriorated shock absorber

Installation Notes

Fits 2015-2020 Mercedes-Benz GLA250, rear. Fits 2017-2019 INFINITI QX30, rear. Verify mount style, compressed length, and extended length before installation to confirm proper suspension travel and fitment. Replace shocks in pairs on the same axle when service procedures call for matched damping performance.

Quality Assurance

KYB is a recognized OE supplier, and the Gas-a-just line is built as an OE monotube replacement for factory-style suspension restoration. Part number 5530017 is engineered to match the listed rear applications with the specified mounting and travel dimensions.