KYB KG54301 Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Land Cruiser and LX450

The KYB Gas-a-Just KG54301 is a rear suspension shock absorber built as an OE-style monotube replacement for Toyota Land Cruiser and Lexus LX450 applications. It is designed to restore original ride control while adding quicker response for vehicles that tow, carry heavier loads, or run larger tires and wheels.

Key Features

• Monotube shock design with separate gas and oil chambers for consistent damping and fast response
• Up to 25% more damping performance than original equipment shocks
• Higher gas pressure improves steering response and control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Engineered specifically for Toyota Land Cruiser and Lexus LX450 rear suspension applications
• Dust cover included

Product Details

The KYB Gas-a-Just line is built for drivers who want OE replacement ride quality with firmer control when the suspension is working harder than stock. Part number KG54301 uses a high-pressure monotube layout that keeps the gas and hydraulic oil separated, helping maintain fade-free operation and immediate damping response. For 1991-1998 Toyota Land Cruiser and 1996-1997 Lexus LX450 rear applications, this shock is a direct-fit solution for restoring suspension control on coil spring front suspension vehicles with rear shock replacement needs. This part cross-references Monroe Shocks & Struts (e.g., 34788) for the same application.

What It Helps Address

• Excessive rear bounce after bumps or dips
• Reduced control when towing or carrying added weight
• Soft or delayed steering response from worn shocks
• Fluid leakage caused by seal wear
• Loss of damping consistency during repeated suspension movement

Installation Notes and Fitment

Fits 1991-1997 Toyota Land Cruiser, rear. Fits 1998 Toyota Land Cruiser, rear. Fits 1996-1997 Lexus LX450, rear. Verify compressed length, extended length, and mount style before installation: compressed length 14.21 in, extended length 22.87 in, stroke length 8.66 in, lower mount type E1L/E(19), upper mount type S1(12MM). This rear shock is intended for vehicles with coil spring front suspension, and the 1996-1997 Lexus LX450 listing excludes adjustable suspension.

Quality Assurance

KYB designs the Gas-a-Just monotube platform as an OE replacement shock absorber with application-specific valving and components. The KG54301 uses a high-pressure design and a chrome piston rod to support consistent operation and reduced seal wear in demanding suspension service.