KYB 339057 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for GM SUVs

KYB Excel-G part number 339057 is a front left suspension strut for select Chevrolet Equinox and Pontiac Torrent models. It is built to restore original ride control, steering response, and body stability without changing the vehicle’s designed suspension behavior.

The Excel-G line is KYB’s OE-style replacement series, assembled on KYB production lines with OE-quality components and calibrated for factory-like performance. For drivers replacing a worn front left strut on a 2005-2006 Chevrolet Equinox or 2006 Pontiac Torrent, 339057 is a direct-fit service part focused on restoring handling consistency.

Key Features

• KYB recommended OE replacement strut for domestic SUVs and crossovers
• Restores designed control and handling on GM SUV applications
• 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
• Made in USA
• Compatible with KYB strut boot SB102 for added protection from dirt, debris, and salt

Product Details

KYB Excel-G 339057 is engineered as an Original Equipment for the Aftermarket (OEA) replacement for the front left position. It uses a 14x1.50 upper mount type, with a compressed length of 12.44 inches, extended length of 21.04 inches, and 8.60 inches of stroke. This part cross-references Monroe Shocks & Struts 72210 for the same application.

Fits 2005-2006 Chevrolet Equinox, front left. Fits 2006 Pontiac Torrent, front left. The part number 339057 is also a useful reference when matching OE-style suspension service parts for these GM platforms.

Common Problems This Strut Can Address

• Excessive bouncing or poor damping from a worn front strut
• Loose or delayed steering response during lane changes
• Body roll and reduced stability in turns
• Uneven tire contact caused by weakened suspension control
• Noise or fluid loss from a failing strut seal

Installation Notes

Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify the front left application before installation, and inspect related suspension components, alignment settings, and tire condition during service. For added protection in harsh environments, KYB recommends strut boot SB102.

Quality Assurance

KYB is a major OE supplier of shocks and struts, and the Excel-G line is produced on the same KYB OE assembly lines using OE-quality components. The design focus is restoring factory-calibrated ride control and handling for GM SUV applications such as the Chevrolet Equinox and Pontiac Torrent.