KYB 5550016 Suspension Shock Absorber - Front

KYB Gas-a-Just Front Shock for Wrangler

The KYB Gas-a-just 5550016 is a front suspension shock absorber for the 2018-2023 Jeep Wrangler. It uses a monotube design with separate hydraulic and high-pressure gas chambers to deliver responsive damping and consistent control during everyday driving and harder suspension movement.

For Jeep Wrangler owners looking for a recommended OEM replacement, this front shock is built around KYB Gas-a-just performance tuning and the dimensions needed for the listed application.

Key Features

• Monotube shock absorber design for direct response and stable damping
• Air-free hydraulic piston and valve area for steering and suspension control
• High-pressure nitrogen gas chamber with floating piston for ride comfort and quick performance response
• Resists fade caused by aeration during repeated suspension movement
• Compressed length: 15.71 in; extended length: 23.62 in; stroke length: 7.91 in
• Lower mount type: E2 (12.8x40); upper mount type: E2 (12.8x70)
• Dust cover included

Product Details

KYB Gas-a-just shocks are engineered as a performance-oriented line within KYB’s suspension catalog. The Gas-a-just 5550016 separates the working chambers so the hydraulic section handles responsiveness while the gas section maintains pressure and ride quality. That layout helps the shock react quickly when the Jeep Wrangler front suspension is working harder, while still maintaining a controlled feel during normal street use.

This part cross-references Mopar 68552761AA for the same application. It also replaces select OE numbers used on the 2018-2023 Jeep Wrangler front suspension.

What It Helps Address

• Excessive front-end bounce on a Jeep Wrangler
• Reduced damping control from worn original shocks
• Shock fade during repeated compression and rebound cycles
• Loose or unsettled ride feel over uneven pavement
• Front suspension response that no longer matches OE behavior

Installation Notes

Fits 2018-2023 Jeep Wrangler, front. Verify compressed length, extended length, and mount style before installation to confirm the shock matches the vehicle’s suspension configuration. Replace shocks in axle pairs to maintain balanced front suspension performance on the Jeep Wrangler.

Quality Assurance

KYB manufactures the Gas-a-just line as a monotube shock absorber platform focused on consistent damping and OE-style replacement fitment for the listed application. Part number 5550016 is built to the published dimensions and mount types for the confirmed front fitment.