KYB 554350 Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Tacoma

The KYB Gas-a-Just 554350 is a rear monotube shock absorber for Toyota Tacoma applications. It is built for drivers who want firmer control, quicker response, and stable damping for daily use, towing, and trucks with larger wheels and tires.

Key Features

• Monotube design separates gas and oil for consistent damping and fade-resistant operation.
• Up to 25% more damping performance than original equipment shocks.
• High-pressure nitrogen gas and air-free hydraulic chambers deliver fast response and ride control.
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage.
• Valving and components are designed specifically for Toyota Tacoma rear applications.
• Improves steering response and supports electronic safety systems working as the vehicle manufacturer intended.
• Dust cover included.

Product Details

KYB Gas-a-Just shocks use a two-chamber monotube layout with a floating piston to keep gas and oil separated. That design helps maintain consistent performance under load and during repeated suspension movement. For Toyota Tacoma owners, part number 554350 provides a direct rear shock solution for 2005-2023 Tacoma models, including 2022-2023 Toyota Tacoma, rear and 2005-2021 Toyota Tacoma, rear. This part cross-references Monroe Shocks & Struts (e.g., 37280) for the same application.

Common Problems This Shock Can Address

• Excessive rear-end bounce after bumps or dips
• Reduced control when towing or carrying heavier loads
• Soft or delayed shock response on rough roads
• Fade from repeated suspension heat buildup
• Loss of stability with larger, heavier tires and wheels

Installation Notes and Tips

Verify compressed length, extended length, and mount style before installation: compressed length 13.78 in., extended length 21.89 in., stroke length 8.11 in., lower mount E2(12X32), upper mount S1. Confirm rear fitment on your Tacoma by model year before ordering. Part number 554350 is listed for rear position only.

Quality Assurance

KYB is a major OE suspension supplier, and the Gas-a-Just line is engineered to deliver controlled damping for truck applications that demand more than a standard twin-tube shock.