KYB 5510017 Suspension Strut - Front

KYB Gas-a-Just Front Strut for Toyota 4Runner and Lexus GX460

The KYB Gas-a-Just 5510017 is a front suspension strut built for Toyota 4Runner and Lexus GX460 applications that need firmer control and quicker response than a standard twin-tube design. It uses a monotube layout with separate gas and oil chambers to maintain consistent damping during normal driving and under heavier load conditions.

Key Features

• Up to 25% more damping performance than original equipment shocks
• Monotube construction separates gas and oil for fade-resistant operation
• High-pressure nitrogen gas improves steering response and control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Designed specifically for Toyota 4Runner and Toyota FJ Cruiser applications
• Dust cover included
• Part number: 5510017

Product Details

KYB Gas-a-Just shocks and struts are engineered for vehicles that work, tow, or run larger and heavier tires and wheels. The high-pressure monotube design reacts quickly to suspension movement, helping the front end stay composed on rough pavement, during braking, and in cornering. For Toyota 4Runner and Lexus GX460 owners, 5510017 provides a direct-fit front suspension strut solution with dimensions of 17.57 inches compressed length, 21.81 inches extended length, and 4.24 inches stroke length.

This part cross-references Toyota 4851080494 for the same application.

What It Helps Address

• Excessive front-end bounce or float
• Reduced steering response
• Shock fade from heat and aeration
• Wear from heavier tires and wheels
• Noise and vibration from worn strut mounts

Installation Notes

Fits 2022-2024 Toyota 4Runner, front, w/o X-REAS Suspension; Gas-a-just. Fits 2010-2021 Toyota 4Runner, front, Monotube Performance Upgrade; Exc. Kinetic Dynamic Suspension and w/o X-Reas Suspension; Gas-a-just. Fits 2010-2014 Toyota FJ Cruiser, front; Gas-a-just. Fits 2022-2023 Lexus GX460, front, w/o Adaptive Variable Suspension; Gas-a-just. Fits 2017-2021 Lexus GX460, front, Install a monotube shock absorber to enhance performance.; Gas-a-just.

KYB recommends replacing the strut mount with SM5640 to reduce the chance of noise and vibration. Verify suspension configuration before installation, especially X-REAS, Kinetic Dynamic Suspension, and Adaptive Variable Suspension equipment.

Quality Assurance

KYB is a suspension manufacturer known for OE-style engineering and application-specific valving. Gas-a-Just monotube construction is designed to maintain consistent damping response and support electronic safety systems by helping the suspension operate as the vehicle manufacturer intended.