KYB KG9309 Suspension Strut - Rear
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KYB
 Gas-a-just

KYB KG9309 Suspension Strut - Rear

Brand KYB KG9309
Position Rear
Compressed Length 9.84
Extended Length 14.17
Lower Mount Type E2(22X50)
R-stop Y
Stroke Length 4.33
Upper Mount Type S1
Product line Gas-a-just
Fits Jaguar · 34 vehicles

OE monotube replacement. Restores original capabilities with a direct-fit strut design.

Monotube construction. Separates gas and oil for fade-free operation and instant response.

Triple chrome piston rod. Reduces seal wear for smoother, longer-lasting performance.

Cross-references Monroe Shocks & Struts 39007 for the same application. See all 1.

$114.74Free shipping
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Suspension Struts are typically replaced in pairs, axle by axle.
Order total $114.74
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KYB Gas-a-Just Rear Strut for Jaguar

The KYB Gas-a-Just KG9309 is a monotube suspension strut built as an OE-style replacement for rear applications on select Jaguar XJ6 and Vanden Plas models. It uses separate gas and oil chambers for quick response, stable control, and consistent ride quality during everyday driving.

Key Features

  • Monotube design with an air-free hydraulic piston and valve area for responsive damping
  • High-pressure nitrogen gas chamber with a floating piston for fade-resistant operation
  • Adds up to 25% more damping performance over original equipment shocks
  • Triple chrome plated piston rod helps reduce seal wear and fluid leakage
  • Higher gas pressure improves steering response and control
  • Designed specifically for Jaguar XJ6 and Vanden Plas rear suspension applications
  • Compatible with vehicles that work, tow, or use larger, heavier tires and wheels

Product Details

Gas-a-Just is KYB’s monotube strut line for drivers who want OE replacement fit and firmer control than a conventional twin-tube design. The KG9309 uses a high-pressure monotube layout that separates gas and oil, helping maintain consistent damping under load and during repeated suspension movement. For rear suspension service on Jaguar XJ6 and Jaguar Vanden Plas models, this part number is engineered to restore original handling characteristics while improving response when the vehicle is carrying more demand than stock.

This part cross-references Monroe Shocks & Struts 39007 for the same application. The KYB KG9309 is a direct-fit rear strut solution for select Jaguar XJ6 and Vanden Plas vehicles, including models with self-leveling rear suspension when used with the specified conversion components noted in the fitment data.

What It Helps Address

  • Excessive rear bounce or oscillation
  • Reduced steering response from worn suspension damping
  • Fluid leakage caused by seal wear
  • Fade during repeated suspension compression and rebound
  • Loss of ride control on heavier or more demanding driving setups

Installation Notes and Fitment

  • Fits 1994 Jaguar Vanden Plas, rear, recommended OEM replacement; except adaptive control suspension; to 9/94.
  • Fits 1994 Jaguar Vanden Plas, rear, recommended OEM replacement; with self leveling rear suspension; to 9/94.
  • Fits 1994 Jaguar XJ6, rear, recommended OEM replacement; except self leveling rear suspension; to 9/94.
  • Fits 1994 Jaguar XJ6, rear, recommended OEM replacement; with self leveling rear suspension; to 9/94.
  • Fits 1987-1993 Jaguar Vanden Plas, rear, recommended OEM replacement; except adaptive control suspension.
  • Fits 1987-1993 Jaguar Vanden Plas, rear, recommended OEM replacement; with self leveling rear suspension.
  • Fits 1988-1993 Jaguar XJ6, rear, recommended OEM replacement; except self leveling rear suspension.
  • Fits 1988-1993 Jaguar XJ6, rear, recommended OEM replacement; with self leveling rear suspension.
  • Fits 1987 Jaguar XJ6, rear, recommended OEM replacement; except self leveling rear suspension; from 10/86.
  • Fits 1987 Jaguar XJ6, rear, recommended OEM replacement; with self leveling rear suspension; from 10/86.
  • Fits 1986 Jaguar Vanden Plas, rear, recommended OEM replacement; except adaptive control suspension; from 10/86.
  • Fits 1986 Jaguar Vanden Plas, rear, recommended OEM replacement; with self leveling rear suspension; from 10/86.
  • For self-leveling rear suspension conversions, the fitment notes specify use with KYB KIT109 and related suspension components as listed.
  • Verify compressed length 9.84 in., extended length 14.17 in., stroke length 4.33 in., lower mount E2(22X50), and upper mount S1 before installation.

Quality Assurance

KYB designs Gas-a-Just monotube struts to restore OE-level suspension function with improved damping response and durable internal construction. The KG9309 uses a high-pressure monotube layout and a chrome piston rod to support consistent operation in rear suspension service on Jaguar XJ6 and Vanden Plas applications.

Related reading

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1994JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); TO 9/94; Gas-a-just
1994JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; TO 9/94; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1994JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); To 9/94; Gas-a-just
1994JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; To 9/94; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1993JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1993JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1993JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1993JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1992JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1992JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1992JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1992JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1991JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1991JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1991JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1991JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1990JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1990JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1990JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1990JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1989JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1989JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1989JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1989JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1988JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1988JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1988JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); Gas-a-just
1988JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1987JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); Gas-a-just
1987JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1987JaguarXJ6RearRecommended OEM Replacement; (Except Self Leveling Rear Suspension); From 10/86; Gas-a-just
1987JaguarXJ6RearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; From 10/86; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
1986JaguarVanden PlasRearRecommended OEM Replacement; (Exc. Adaptive Control Susp.); FROM 10/86; Gas-a-just
1986JaguarVanden PlasRearRecommended OEM Replacement; w/ Self Leveling Rear Suspension; FROM 10/86; Jaguar Rear Self-Leveling can be eliminated by using PN KG9309 (2 req) and PN KIT109 (1. req) Worn-out self-leveling shocks may have fatigued rear springs. If necessary, Jaguar #JLM-11382 (from Jaguar) is required to restore proper ride height.; Gas-a-just
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Monroe Shocks & Struts — 39007