KYB 340092 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for Nissan 370Z

KYB Excel-G part number 340092 is a front left suspension strut built to restore original ride control, stability, and steering response. It is a direct OE-style replacement for select Nissan 370Z, INFINITI Q60, and INFINITI G37 applications, with vehicle-specific damping calibrated for factory handling characteristics.

Key Features

• KYB Excel-G OEA replacement for Asian performance vehicles
• Fits 2015-2020 Nissan 370Z, front left
• Fits 2014-2015 INFINITI Q60, front left
• Fits 2013-2014 Nissan 370Z, front left, exc. Sport Package
• Fits 2008-2013 INFINITI G37, front left, w/o 4 Wheel Steering
• Fits 2009-2013 INFINITI G37, front left
• Fits 2009-2012 Nissan 370Z, front left
• Nitrogen gas-charged twin-tube design
• Triple-lip fluid seal helps reduce oil and gas leakage
• Hand-assembled damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket design helps minimize flex and maintain alignment
• R-stop included; dust cover, internal rebound spring, and B-stop are not included

Product Details

The KYB Excel-G line is built on KYB OE production lines using OE-quality components and calibration focused on restoring factory performance rather than changing it. For the Nissan 370Z front left strut application, part number 340092 is engineered to support consistent ride control, lane-change responsiveness, and braking stability while preserving the vehicle’s original suspension behavior. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Dimensions include a compressed length of 17.12 inches, extended length of 21.25 inches, and stroke length of 4.13 inches. Upper mount type is 10x1.25, and the lower mount type is E214X40.

Common Problems This Strut Can Address

• Excessive bouncing or reduced damping control
• Loose or unstable front-end feel during braking or cornering
• Delayed steering response on Nissan 370Z, INFINITI Q60, or INFINITI G37 models
• Uneven tire contact caused by worn suspension damping
• Noise or fluid loss associated with a worn strut seal

Installation Notes

Install on the front left position only for the listed applications. Follow the vehicle manufacturer’s instructions, especially where the notes specify replacing the suspension strut and coil spring assembly together. Verify fitment against the exact year, model, and package configuration before installation. KYB recommends protecting new struts from road debris with strut boot SB103.

Quality Assurance

KYB is a major OE supplier, and Excel-G is classified as an Original Equipment for the Aftermarket replacement designed to match original suspension performance. The strut uses OE-quality construction and vehicle-specific valving to support consistent operation in the listed Nissan and INFINITI applications.