KYB Suspension Strut P/N:KG9309

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$141.99
MPN: KG9309
UPC: 781552093091
Item Package Quantity: 1
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KYB Suspension Strut P/N:KG9309
KYB Suspension Strut P/N:KG9309
$141.99

Settle the ride and sharpen rear damping with the KYB Gas-a-just High Pressure Monotube Gas Strut (MPN KG9309), a rear-position suspension strut offered as an OE monotube replacement to help restore your vehicle's original capabilities. It fits the 1986-1994 Jaguar Vanden Plas and 1987-1994 Jaguar XJ6 — see the Buyer's Guide tab for engine-level details.

The Gas-a-just uses two separate working chambers: an air-free hydraulic piston and valve area for responsiveness and control, plus a second high-pressure nitrogen gas area with a floating piston for a comfortable ride during normal driving and added performance on demand.

  • High-pressure monotube design: separates the gas and oil for fade-free operation and instant response.
  • Extra damping: adds up to 25% more damping performance over original equipment shocks — engineered for vehicles that work, tow, and run larger, heavier tires and wheels.
  • Triple chrome-plated piston rod: an ultra-smooth rod that helps reduce seal wear, since fluid leaking can be a cause of shock failure.
  • Steering response: the higher gas pressure responds quickly to help improve steering response and keep electronic safety systems performing as designed.

Signs a strut may need replacing include a bouncy or wallowing ride, excessive body movement, uneven tire wear, or fluid seepage.

Interchange: 39007

This part cross-references / interchanges with the following part numbers:

39007

Frequently Asked Questions

What is the KYB KG9309?

It is a KYB Gas-a-just High Pressure Monotube Gas Strut, a rear-position suspension strut offered as an OE monotube replacement to help restore your vehicle's original ride and control.

Which vehicles does it fit?

It fits the 1986-1994 Jaguar Vanden Plas and the 1987-1994 Jaguar XJ6. See the Buyer's Guide tab to confirm the exact fitment for your vehicle.

What makes the monotube design different?

The high-pressure monotube separates the gas and oil into two chambers for fade-free operation and instant response, with a floating piston for comfort during normal driving.

How much damping does it add?

KYB states the Gas-a-just adds up to 25% more damping performance over original equipment shocks, designed for vehicles that work, tow, and run larger, heavier tires and wheels.

What are signs my strut may need replacing?

Watch for a bouncy or wallowing ride, excessive body movement, uneven tire wear, or fluid seepage. Diagnose the cause first, and replace struts as a matched pair for balanced handling.