KYB 339171 Suspension Strut - Front Right

KYB Excel-G Front Right Strut for Impreza

The KYB Excel-G 339171 is a suspension strut for the front right position on 2008-2011 Subaru Impreza models. Built to restore original ride control, it is a direct OE-style replacement for drivers who want predictable handling, stable braking, and consistent steering response.

Key Features

• Fits 2008-2011 Subaru Impreza, front right
• KYB Excel-G line calibrated to restore factory ride control and handling
• Nitrogen gas-charged twin-tube design
• Uses OE-quality components assembled on KYB OE production lines
• 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
• Upper mount type: 12X1.25
• Compressed length: 13.42 in; extended length: 19.71 in; stroke length: 6.29 in

Product Details

The KYB Excel-G brand line is built for OE replacement service, not for changing the vehicle’s original suspension character. For the Subaru Impreza, part number 339171 is engineered to help restore the designed balance between ride comfort, lane-change response, and body control. KYB supplies shocks and struts to new vehicle manufacturers, and the Excel-G is produced on the same assembly lines using OE-quality components for a factory-style result.

This part cross-references Monroe Shocks & Struts 72565 for the same application. It also aligns with Subaru OE references 20310FG020, 20310FG040, 20310FG120, and 20310FG140.

What It Helps Address

• Excessive bouncing or float after bumps
• Loose steering feel or delayed response
• Nose dive during braking
• Uneven tire contact caused by worn damping control
• Body movement that affects stability in turns and lane changes

Installation Notes and Tips

Fits 2008-2011 Subaru Impreza, front right. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify the upper mount thread specification is 12X1.25 before installation. KYB also recommends using a strut boot, part number SB103, to help protect the new strut from dirt, debris, and road salt.

Quality Assurance

KYB Excel-G struts are built on KYB OE assembly lines with OE-quality components and are calibrated to restore original suspension performance. The design includes a triple-lip fluid seal and a rigid strut body and bracket structure to support consistent operation and alignment retention.