KYB Suspension Shock Absorber KG54318
KYB Suspension Shock Absorber KG54318 - view 2
KYB Suspension Shock Absorber KG54318
KYB Suspension Shock Absorber KG54318 - view 2

KYB Suspension Shock Absorber P/N:KG54318

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$72.99
MPN: KG54318
UPC: 781552000501
Item Package Quantity: 1
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KYB Suspension Shock Absorber P/N:KG54318
KYB Suspension Shock Absorber P/N:KG54318
$72.99

Smooth out the ride and restore firm damping at the rear of your truck or SUV with the KYB Gas-a-just Shock Absorber KG54318, a high-pressure monotube gas shock. It installs as a rear-position direct-fit replacement for the 1997-1999 Infiniti QX4 and 1996-1999 Nissan Pathfinder. As a KYB gas shock absorber, the Gas-a-just monotube design separates the gas and oil for fade-free operation and instant response, avoiding the aeration that can affect traditional twin-tube shocks.

  • Monotube gas design: An air-free hydraulic piston and valve chamber handles responsiveness and control, while a high-pressure nitrogen gas chamber with a floating piston supports a comfortable ride and adds damping on demand.
  • Up to 25% more damping: Adds up to 25% more damping performance over original equipment shocks, with extra damping suited to vehicles that work, tow, and run larger, heavier tires and wheels.
  • Application-specific valving: Components and valving designed specifically for the Pathfinder and QX4.
  • Triple chrome-plated rod: An ultra-smooth triple chrome-plated piston rod helps reduce seal wear, and the higher gas pressure responds quickly to improve steering response.

The Gas-a-just also helps keep electronic safety systems performing as the manufacturer intended. Sold individually; replacing both sides of the axle together as a matched pair is recommended for balanced handling.

Interchange: G63712 · 37158 · 562000W025 · 562001W225 · 562001W226

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

G63712, 37158, 562000W025, 562001W225, 562001W226

Frequently Asked Questions

What vehicles does the KYB KG54318 shock absorber fit?

It fits the 1997-1999 Infiniti QX4 and the 1996-1999 Nissan Pathfinder in the rear position. Check the Buyer's Guide tab to confirm the fit for your exact vehicle.

Is this a KYB gas shock absorber or a twin-tube design?

It is a KYB Gas-a-just high-pressure monotube gas shock. The monotube design separates the gas and oil for fade-free operation and instant response, unlike a traditional twin-tube shock.

How much damping does the KG54318 add over stock?

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

Do I need to replace both rear shocks at once?

This shock is sold individually. Replacing both sides of the axle together as a matched pair is recommended so damping stays balanced side to side.

What does the triple chrome-plated piston rod do?

The ultra-smooth triple chrome-plated piston rod helps reduce seal wear. The higher gas pressure of the Gas-a-just also responds quickly to help improve steering response.

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