HomeSuspension > Shocks and StrutsKYB KG54318 Shock Absorber - Rear
Part #: KG54318

KYB KG54318 Shock Absorber - Rear

Gas-a-just, Rear
7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Gas-a-just, Rear
Fitment: INFINITI and Nissan, QX4 and Pathfinder
Easy Returns — Return within 60 days for a full refund
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Overview of KYB Gas-a-just Suspension Shock Absorber KG54318

The KYB Gas-a-just suspension shock absorber KG54318 is engineered for reliable performance on INFINITI Pathfinder and Nissan QX4 models. Designed to restore original handling and ride comfort, this shock absorber meets specific fitment requirements for these vehicles.

  • Compressed length: 14.57 inches
  • Extended length: 22.8 inches
  • Stroke length: 8.23 inches
  • Lower mount type: E2(12x48)
  • Upper mount type: E2(16x42)
  • Includes dust cover for protection
  • R-stop included, no internal rebound spring or B-stop

About the KYB Gas-a-just Product Line

The Gas-a-just line by KYB is designed to provide consistent damping performance with a gas-charged design that reduces aeration and foaming inside the shock absorber. This technology helps maintain stable handling and ride quality over a wide range of driving conditions. The KG54318 shock absorber is part of this line, offering precise fitment and durability for INFINITI Pathfinder and Nissan QX4 vehicles.

Detailed Product Description

This KYB Gas-a-just shock absorber features a compressed length of 14.57 inches and an extended length of 22.8 inches, with a stroke length of 8.23 inches, ensuring proper suspension travel for compatible vehicles. The lower mount uses an E2(12x48) configuration, while the upper mount is E2(16x42), matching OEM specifications for secure installation. A dust cover is included to protect internal components from dirt and debris, extending the service life of the shock absorber. The design includes an R-stop to prevent overextension but does not have an internal rebound spring or B-stop, aligning with the original equipment design for the INFINITI Pathfinder and Nissan QX4.

Common Applications and Problem Solving

  • Restores vehicle stability and control on INFINITI Pathfinder and Nissan QX4
  • Reduces excessive bouncing and harshness from worn shocks
  • Improves ride comfort by maintaining proper suspension travel
  • Prevents premature tire wear caused by suspension issues
  • Eliminates noise and vibration related to damaged or leaking shocks

Installation Notes and Tips

When installing the KYB Gas-a-just KG54318 shock absorber, ensure the vehicle is securely lifted and supported. Verify the mount types (E2 lower and upper) match the vehicle’s suspension points. It is recommended to replace shocks in pairs to maintain balanced handling. Inspect related suspension components such as bushings and mounts for wear during installation. The included dust cover should be positioned correctly to protect the shock shaft from contaminants.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just KG54318 shock absorber to meet or exceed OEM standards for durability and performance. This part is backed by KYB’s quality control processes to ensure consistent function and fitment. Warranty coverage details should be confirmed with the distributor or retailer, as KYB typically offers limited warranties against defects in materials and workmanship.

BrandKYB
Part NumberKG54318
PositionGas-a-just, Rear
Compressed Length14.57
Dust Cover IncludedY
Extended Length22.8
Lower Mount TypeE2(12X48)
R-stopY
Stroke Length8.23
Upper Mount TypeE2(16X42)

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
1999INFINITIQX4RearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); TO 11/98; Gas-a-just
1999NissanPathfinderRearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); TO 11/98; Gas-a-just
1998INFINITIQX4RearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); Gas-a-just
1998NissanPathfinderRearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); Gas-a-just
1997INFINITIQX4RearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); Gas-a-just
1997NissanPathfinderRearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); Gas-a-just
1996NissanPathfinderRearMonotube Performance Upgrade; (Exc. Electronic Adjustable Suspension); Gas-a-just

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

G63712

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.