KYB KG4162 Shock Absorber - Rear

KYB Gas-a-just Rear Shock for GM SUVs

The KYB Gas-a-just KG4162 is a rear monotube shock absorber built for GM SUV and wagon applications that need firmer control and consistent damping. It uses a high-pressure gas design to separate oil and gas, helping maintain response during normal driving and under heavier load conditions.

Fits 2002-2009 Chevrolet Trailblazer, rear. Fits 2002-2009 GMC Envoy, rear. Fits 2003-2008 Isuzu Ascender, rear. Fits 2004-2007 Buick Rainier, rear. Fits 2003-2006 Chevrolet SSR, rear. Fits 2002-2006 Chevrolet Trailblazer EXT, rear. Fits 2006 GMC Envoy, rear. Fits 2002-2006 GMC Envoy XL, rear. Fits 2004-2005 GMC Envoy XUV, rear. Fits 2002-2004 Oldsmobile Bravada, rear.

• Monotube construction for direct response and stable damping
• High-pressure nitrogen gas separates the gas and oil for fade-resistant operation
• Up to 25% more damping performance than original equipment shocks
• Valving and components tuned for GM SUV rear suspension applications
• Triple chrome plated piston rod helps reduce seal wear
• Dust cover included
• Extended length: 23.23 in; compressed length: 14.76 in; stroke length: 8.47 in
• Lower mount type: E2(12.8X62); upper mount type: E2(12.8X42.5)

Gas-a-just Product Line Details

KYB Gas-a-just shocks are designed for drivers who want more controlled rear suspension behavior than a conventional twin-tube design. The monotube layout gives the shock a dedicated hydraulic working area and a separate gas chamber, which supports quicker reaction to suspension movement and more consistent performance when the vehicle is carrying extra weight or running larger tires and wheels. The KYB KG4162 is part of that line and is matched to rear GM SUV fitments such as the Chevrolet Trailblazer and GMC Envoy.

Common Problems This Shock Can Address

• Excessive rear bounce after bumps or dips
• Reduced control when towing or carrying heavier loads
• Soft or delayed rear suspension response
• Shock fade from heat and aeration during repeated suspension movement
• Uneven rear stability on GM SUV platforms with larger tires and wheels

Installation Notes and Tips

Install the KYB KG4162 in the rear position only on the listed applications. Verify mount style and compressed/extended length before installation, and follow the vehicle manufacturer’s service procedure for any model-specific rear suspension components. This part cross-references Monroe Shocks & Struts (e.g., 911510) for the same application.

Quality Assurance

KYB designs Gas-a-just shocks with a monotube, high-pressure gas architecture to improve consistency and steering response while reducing the chance of performance loss from aeration. The KG4162 is engineered for the listed GM rear applications and uses a triple chrome plated piston rod to help reduce seal wear.