KYB KG54331 Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Excursion

The KYB Gas-a-Just KG54331 is a rear suspension shock absorber for 2000-2005 Ford Excursion models. It is built as a monotube OE-style replacement to restore original ride control, with added damping response for heavier-duty use.

KYB’s Gas-a-Just line uses a monotube design with separate hydraulic and high-pressure gas chambers. That layout helps deliver consistent control, quicker steering response, and fade-resistant operation for Ford Excursion owners who tow, work, or run larger tires and wheels.

Key Features

• Fits 2000-2005 Ford Excursion, rear
• Part number KG54331
• Monotube shock absorber design for responsive damping
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas and oil are separated for stable, fade-free operation
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Dust cover included
• Engineered for Ford Excursion applications

Detailed Description

The KYB Gas-a-Just KG54331 is designed for drivers who want OE-style rear suspension control with firmer response than a standard replacement shock. Its air-free hydraulic working area improves responsiveness, while the gas chamber adds immediate force when the suspension is loaded or the vehicle is working harder. For 2000-2005 Ford Excursion rear suspension service, this shock supports consistent handling and ride control under everyday driving and heavier-duty conditions.

This part cross-references Monroe Shocks & Struts 911176 for the same application. The KG54331 is also listed alongside Gabriel 77837 as an interchange reference.

Common Problems This Part Can Address

• Excessive rear bounce after bumps or dips
• Reduced control when towing or carrying heavier loads
• Soft or delayed steering response from worn rear damping
• Shock fade during repeated suspension movement
• Fluid leakage from worn shock seals

Installation Notes and Tips

Fits 2000-2005 Ford Excursion, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify mount style and compressed/extended length before installation: compressed length 17.87 in., extended length 28.35 in., stroke length 10.47 in. Lower mount type is E2(12X38) and upper mount type is E3(61.6X87X30).

Quality Assurance

KYB designs the Gas-a-Just line as an OE monotube replacement with valving and components tailored to the application. The KG54331 uses a high-pressure monotube layout and a chrome piston rod to support consistent operation and reduced seal wear in service.