KYB 339151 Suspension Strut - Front Right

KYB Excel-G Front Right Strut for Subaru Legacy

The KYB Excel-G 339151 is a suspension strut built to restore original ride control, stability, and steering response on the 1999 Subaru Legacy, front right. It is an OE-style replacement for drivers who want factory-correct handling without changing the vehicle’s designed suspension behavior.

Key Features

• OE replacement choice for Asian vehicles
• Restores designed control and handling on the Subaru Legacy
• Nitrogen gas-charged, twin-tube construction
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, 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 design is included in the strut architecture

Product Details

KYB Excel-G struts are built on the same OE assembly lines used for original equipment applications and calibrated to return the suspension to its intended performance. Part number 339151 is engineered for the front right position on the 1999 Subaru Legacy and is a direct-fit suspension strut for restoring ride control, lane-change response, and braking stability. This part cross-references Monroe Shocks & Struts (e.g., 71443) for the same application.

The Excel-G line focuses on preserving factory suspension behavior rather than altering it, making it a practical choice for a Subaru Legacy front right strut replacement when original handling characteristics are the goal. KYB part number 339151 is also identified with Subaru OE reference 20311AC220.

What It Helps Address

• Excessive bounce or float after suspension wear
• Reduced steering response during lane changes
• Uneven tire contact caused by weak damping
• Body movement that affects braking and cornering stability
• Noise or vibration associated with worn strut components

Installation Notes

Compatible With 1999 Subaru Legacy, front right. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. For reduced noise and vibration, KYB recommends new strut mount SM5361. To help protect the new strut from dirt, debris, and salt, KYB recommends strut boot SB103.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is built to OE-quality standards on KYB production lines. The design uses application-specific damping calibration and quality sealing components to support consistent suspension performance on the 1999 Subaru Legacy.