KYB KG4012 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber KG4012

The KYB Gas-a-just KG4012 suspension shock absorber is engineered to provide reliable damping performance for select Chevrolet, Mazda, Nissan, and Toyota trucks and pickups. Designed with precise dimensions and mounting types, this shock absorber supports improved ride control and vehicle stability.

• Compressed length: 12.91 inches
• Extended length: 20.79 inches
• Stroke length: 7.87 inches
• Lower mount type: E1
• Upper mount type: E1
• Includes dust cover for protection
• No internal rebound spring
• No B-stop or R-stop features

Detailed Product Features and Specifications

The KYB Gas-a-just KG4012 shock absorber features a compressed length of 12.91 inches and an extended length of 20.79 inches, providing a stroke length of 7.87 inches. Both the upper and lower mounts utilize the E1 mount type, ensuring compatibility with the suspension systems of Chevrolet B2000, B2200, B2600, Mazda B2200, Nissan D21, Frontier, and Toyota LUV and Pickup models. The inclusion of a dust cover helps protect the shock absorber from dirt and debris, extending its service life. This model does not include an internal rebound spring or bump stops (B-stop or R-stop), which is consistent with the original equipment design for these vehicles.

About the KYB Gas-a-just Product Line

The Gas-a-just line from KYB is designed to offer a balance of performance and durability for light trucks and pickups. These shocks use gas-charged technology to reduce aeration and maintain consistent damping under various driving conditions. The KG4012 model fits within this line by providing reliable shock absorption tailored to the suspension requirements of mid-size trucks like the Chevrolet B-series and Nissan Frontier.

Common Applications and Problem Solving

• Restores proper damping for Chevrolet B2000, B2200, B2600 trucks
• Improves ride comfort and handling on Mazda B2200 pickups
• Replaces worn shocks on Nissan D21 and Frontier models
• Addresses excessive bouncing or bottoming out in Toyota LUV and Pickup vehicles
• Helps reduce suspension noise and vibration

Installation Notes and Tips

When installing the KYB Gas-a-just KG4012 shock absorber, verify the E1 mount compatibility with your vehicle’s suspension. Ensure the shock is installed in the correct orientation, with the dust cover positioned to protect the piston rod from contaminants. It is recommended to replace shocks in pairs to maintain balanced handling. Use proper torque specifications for mounting bolts and inspect related suspension components during installation.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just KG4012 shock absorber to meet or exceed OEM standards for fit and function. The product includes a dust cover to enhance durability and is backed by KYB’s quality control processes. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary by region.