KYB 343379 Shock Absorber - Rear

KYB Excel-G Rear Shock Absorber for Pathfinder and QX4

KYB Excel-G part number 343379 is a rear suspension shock absorber built to restore original ride control, stability, braking response, and handling balance. It is a direct OE-style replacement for select Nissan Pathfinder and INFINITI QX4 models, with vehicle-specific damping calibrated for import SUV applications.

The Excel-G line is KYB’s OE replacement series, produced on the same assembly lines used for original equipment and built with OE-quality components. For drivers searching for a rear shock absorber for 1999-2004 Nissan Pathfinder or 1999-2003 INFINITI QX4, 343379 is engineered to return the suspension to factory-style performance rather than alter it.

Key Features

• OE-style replacement shock absorber for rear suspension applications
• Nitrogen gas-charged, twin-tube design for consistent damping response
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact and body motion
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Dust cover included
• Compressed length: 14.72 in; extended length: 24.17 in; stroke length: 9.45 in
• Lower mount type: E2(16X42); upper mount type: E2(12X42)

Detailed Description

KYB Excel-G 343379 is designed for rear suspension service on 1999-2004 Nissan Pathfinder and 1999-2003 INFINITI QX4 models. It uses OE-style construction and damping calibration to restore the vehicle’s original ride characteristics, including steering response, lane-change stability, and braking control. This part cross-references Monroe Shocks & Struts (e.g., 37204) for the same application.

As part of the Excel-G product line, this shock absorber is built for drivers and technicians who want factory-type suspension behavior on a Nissan Pathfinder rear shock replacement or INFINITI QX4 rear suspension repair. Part number 343379 is also a practical search term for shoppers comparing OE replacement shocks by application and position.

What It Helps Address

• Excessive rear-end bounce after bumps or dips
• Reduced stability during braking and lane changes
• Loose or unsettled rear suspension feel
• Uneven tire contact caused by worn damping control
• Loss of factory ride balance on Pathfinder and QX4 models

Installation Notes and Tips

• Compatible With 1999-2004 Nissan Pathfinder, rear; 1999-2003 INFINITI QX4, rear.
• Replace the suspension strut and coil spring assembly according to manufacturer instructions where specified in the fitment notes.
• Verify mount style and compressed/extended length before installation.
• Inspect related rear suspension components, including springs, bushings, and mounts, during service.
• Follow factory torque specifications and alignment procedures after installation.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is built on OE production lines using OE-quality components. The design focus is restoring original suspension performance for the specified Nissan Pathfinder and INFINITI QX4 rear applications. Part number 343379 is an OE-style replacement choice for technicians and owners seeking factory-type ride control.