KYB KG9130 Suspension Strut - Rear

KYB Gas-a-Just Rear Strut for Volkswagen

The KYB Gas-a-Just KG9130 is a rear suspension strut built for Volkswagen applications that need firmer control and quicker response than a standard OE-style unit. It uses a monotube design with separate gas and oil chambers to maintain consistent damping during normal driving and under heavier load.

For Volkswagen Cabrio, Jetta, Golf, and Corrado rear suspension service, the KG9130 is a direct-fit performance upgrade focused on steering response, ride control, and fade resistance. The Gas-a-Just line is tuned for vehicles that work harder, tow, or run larger wheels and tires.

Key Features

• Part number KG9130 for rear suspension applications
• Monotube design separates gas and oil for fade-resistant operation
• Up to 25% more damping performance than original equipment shocks
• Higher gas pressure improves steering response and body control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Valving and components are designed specifically for Volkswagen fitments
• R-stop design is included; dust cover is not included
• Compatible with electronic safety systems that rely on suspension performance staying within manufacturer targets

Product Line Details

KYB Gas-a-Just shocks and struts are monotube dampers with an air-free hydraulic working area and a separate high-pressure nitrogen chamber. That layout gives the strut immediate response when suspension demand increases, while still maintaining a controlled ride during everyday driving. The KG9130 follows that approach for rear Volkswagen applications.

Detailed Description

The KYB KG9130 rear suspension strut is engineered for Volkswagen drivers who want more control from the rear suspension without changing the vehicle’s basic ride geometry. Its compressed length is 17.32 inches, extended length is 25.16 inches, and stroke length is 7.83 inches. Mounting specifications include lower mount type E2(10.2X50) and upper mount type S1. KYB also notes that new strut mounts, part number SM5070, can reduce noise and vibration, and a strut boot, part number SB115, can help protect the unit from dirt, debris, and salt.

This part cross-references Monroe Shocks & Struts 39100 for the same application. It is a strong match for rear suspension service on Volkswagen Cabrio, Volkswagen Jetta, Volkswagen Golf, and Volkswagen Corrado models where firmer damping and consistent control are needed. The KG9130 part number is commonly searched by owners looking for a rear Volkswagen strut upgrade with monotube performance characteristics.

What It Helps Address

• Excessive rear-end bounce or oscillation
• Reduced steering response from worn rear dampers
• Fade in suspension performance during repeated use
• Ride instability with heavier wheels and tires
• Noise or vibration caused by worn supporting mounts

Installation Notes and Tips

• Fits 1995-2002 Volkswagen Cabrio, rear
• Fits 1999 Volkswagen Jetta, rear
• Fits 1985-1998 Volkswagen Golf, rear
• Fits 1985-1998 Volkswagen Jetta, rear
• Fits 1990-1992 Volkswagen Corrado, rear
• Verify mount style and dimensions before installation: lower E2(10.2X50), upper S1
• Replace worn strut mounts during service to help control noise and vibration
• Inspect surrounding suspension components for wear before final assembly

Quality Assurance

KYB is a recognized suspension manufacturer with OE-level engineering focus, and the Gas-a-Just line is built around monotube damping technology for consistent performance and control. The KG9130 is designed to maintain stable operation under demanding rear suspension conditions on Volkswagen applications.