KYB KG4742 Shock Absorber - Front

KYB Gas-a-Just Front Shock for Mercedes-Benz E-Class

The KYB Gas-a-Just KG4742 is a front suspension shock absorber built as an OE-style monotube replacement for select Mercedes-Benz E-Class applications. It is engineered to restore original ride control while adding firmer damping response for vehicles that carry extra load, tow, or run larger wheels and tires.

Key Features

• Monotube shock absorber with separate gas and oil chambers for consistent response
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas design for fade-resistant operation and quicker steering response
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Designed specifically for Mercedes-Benz E-Class front suspension applications
• Includes dust cover, B-stop, and R-stop

Product Details

The KYB Gas-a-Just line is built for drivers who want OE replacement fit and a more controlled feel from the front suspension. Part number KG4742 uses a monotube design with an air-free hydraulic working area and a high-pressure gas chamber separated by a floating piston. That layout supports immediate damping response and stable performance during normal driving and under heavier operating demands. This part cross-references Monroe Shocks & Struts (e.g., 39020) for the same application.

Fits 1996-2002 Mercedes-Benz E320, front; Fits 1998-2002 Mercedes-Benz E430, front; Fits 1996-1999 Mercedes-Benz E300, front; Fits 1997 Mercedes-Benz E420, front. The KG4742 is a direct-fit suspension shock absorber for these Mercedes-Benz E-Class front positions, with application notes that exclude certain self-leveling, sport suspension, or rear level control setups.

Common Problems This Shock Can Address

• Excessive front-end bounce after bumps or dips
• Reduced steering response and loose road feel
• Shock fade during repeated suspension movement
• Fluid leakage from worn shock seals
• Loss of control from worn OE front shocks on Mercedes-Benz E320, E430, E300, or E420 models

Installation Notes and Tips

Verify the vehicle’s suspension configuration before ordering, since this front shock does not apply to all self-leveling, sport suspension, or rear level control setups listed in the fitment notes. Match the upper and lower mount types to the original part and inspect related suspension components such as bushings, mounts, and tires before installation. After replacement, confirm ride height, steering feel, and front-end noise are normal.

Quality Assurance

KYB designs the Gas-a-Just line as an OE monotube replacement to help restore factory suspension behavior with added damping control. The KG4742 uses a high-pressure monotube construction and a chrome piston rod to support consistent operation and reduced seal wear in daily driving conditions.