KYB KG9135 Shock Absorber - Front

KYB Gas-a-Just Front Shock for Jaguar XJ6 and Vanden Plas

The KYB Gas-a-Just KG9135 is a front suspension shock absorber built for Jaguar XJ6 and Vanden Plas applications that need OE-style control with added damping response. Its monotube design separates gas and oil for consistent performance, quicker steering response, and fade-resistant operation.

Gas-a-Just Product Line

KYB Gas-a-Just shocks are monotube replacements engineered for vehicles that work harder than average, including cars with heavier wheels and tires or those used for towing. The KG9135 follows that design approach with higher gas pressure and valving tuned for the Jaguar XJ platform.

Key Features

• Adds up to 25% more damping performance over original equipment shocks
• High-pressure monotube construction separates gas and oil for stable response
• Ultra-smooth triple chrome plated piston rod helps reduce seal wear
• Additional damping for vehicles with larger, heavier tires and wheels
• Dust cover included
• B-stop and R-stop included in the design
• Direct-fit engineering for Jaguar XJ6 and Vanden Plas front suspension applications

Detailed Description

KYB KG9135 is a suspension shock absorber designed as an OE monotube replacement for the front of select Jaguar XJ6 and Vanden Plas models. The internal hydraulic working chamber provides responsiveness and control, while the high-pressure nitrogen gas chamber with floating piston supports a more consistent ride during normal driving and quicker reaction when suspension demand increases. This part number is built for 1986-1994 Jaguar Vanden Plas and 1987-1994 Jaguar XJ6 front applications listed in the fitment data, including vehicles with self-leveling rear suspension or without adaptive control suspension where specified. This part cross-references Monroe Shocks & Struts (e.g., 39005) for the same application.

What It Helps Address

• Excessive front-end bounce or oscillation
• Reduced steering response from worn shock absorbers
• Fade during repeated suspension movement
• Loss of control feel on heavier wheel and tire setups
• Noise or instability caused by worn OE-style dampers

Installation Notes and Fitment

• Fits 1994 Jaguar Vanden Plas, front, recommended OEM replacement; (exc. adaptive control susp.); to 9/94
• Fits 1994 Jaguar Vanden Plas, front, recommended OEM replacement; w/ self leveling rear suspension; to 9/94
• Fits 1994 Jaguar XJ6, front, recommended OEM replacement; to 9/94
• Fits 1987-1993 Jaguar Vanden Plas, front, recommended OEM replacement; (exc. adaptive control susp.)
• Fits 1987-1993 Jaguar Vanden Plas, front, recommended OEM replacement; w/ self leveling rear suspension
• Fits 1988-1993 Jaguar XJ6, front; replace suspension strut and coil spring assembly according to manufacturer's instructions
• Fits 1987 Jaguar XJ6, front, recommended OEM replacement; from 10/86
• Fits 1986 Jaguar Vanden Plas, front, recommended OEM replacement; (exc. adaptive control susp.); from 10/86
• Fits 1986 Jaguar Vanden Plas, front, recommended OEM replacement; w/ self leveling rear suspension; from 10/86

Verify upper and lower mount types against the vehicle before installation. Compressed length is 13.9 in., extended length is 17.2 in., and stroke length is 3.31 in. Follow Jaguar service procedures for front suspension service, especially on XJ6 models that require strut and coil spring assembly handling.

Quality Assurance

KYB designs Gas-a-Just shocks as OE-style monotube replacements for specific vehicle applications, with valving and components matched to the Jaguar XJ platform. The KG9135 is engineered to support consistent damping performance and stable operation in the front suspension.