KYB 339172 Excel-G OEA Gas Twin-Tube Strut Front Left 08-14 Subaru Impreza WRX

Vehicle Fitment

• 2008-2011 Subaru Impreza (All Trims, AWD) - Front Left (Driver Side) Strut
• 2008-2014 Subaru Impreza WRX (Base, AWD) - Front Left (Driver Side) Strut

Fitment Notes

• Front Left (Driver Side) position only - for the Front Right (Passenger Side), see KYB part number 339171
• AWD models - confirm your Impreza is the AWD variant before ordering
• Bare strut only - coil spring, strut mount, bearing plate, and insulators are NOT included; reuse existing components or purchase separately
• All necessary washers, bushings, and nuts for installation are included; factory shock mounting bolts are reused
• Shock boots are sold separately - KYB SB103 is the commonly recommended boot for this application
• Sold individually - purchase 339171 + 339172 for a complete front axle replacement
• For the rear struts, see KYB part number 341487 (fits both sides)
• Front wheel alignment required after installation

Features

• OEA (Original Equipment for the Aftermarket) classified - manufactured on the same KYB global OE assembly lines with the same components used to supply Subaru directly; calibrated to restore the Impreza/WRX platform's originally designed handling and control, not alter it
• Nitrogen gas-charged, twin-tube design prevents oil aeration for consistent, fade-free damping response under all temperature and driving conditions - two multi-stage valves provide better handling characteristics across virtually all driving conditions
• Triple chrome-plated piston rod reduces seal friction and wear for a long-lasting, reliable seal interface over the strut's full service life
• Seamless extruded steel inner working cylinder matched with a PTFE (Teflon) coated piston band ensures a consistent positive seal and extended service life
• Precision sintered iron strut rod guide helps retain correct wheel alignment geometry throughout the strut's operating range
• Multi-lip synthetic oil seals and wiper system keep hydraulic fluid in and road debris and moisture out
• ESC (Electronic Stability Control) and electronic safety systems ready - engineered so that the Impreza's electronic safety systems continue to operate as designed
• Made in the USA - backed by KYB's Lifetime Warranty to the original purchaser

Specifications

• Part Number: 339172
• Product Line: KYB Excel-G (also marketed as GR-2)
• Type: Nitrogen Gas-Charged, Twin-Tube Strut
• Position: Front Left (Driver Side)
• Classification: OEA (Original Equipment for the Aftermarket)
• Country of Origin: USA
• Piston Rod: Triple Chrome-Plated
• Inner Cylinder: Seamless Extruded Steel
• Piston Band: PTFE (Teflon) Coated
• Spring Included: No
• Mount Included: No
• Hardware Included: Yes (washers, bushings, nuts)
• Quantity: Sold Individually
• Companion Front Right Part: KYB 339171
• Companion Rear Part: KYB 341487 (both sides)
• Warranty: KYB Lifetime Warranty

Included Components

• 1x KYB Excel-G Front Left (Driver Side) Strut - 339172
• Installation hardware (washers, bushings, nuts)
• Note: Coil spring, strut mount, bearing plate, and insulators are NOT included; shock boots sold separately

Product Description

The KYB 339172 is an Excel-G nitrogen gas-charged twin-tube strut for the front left (driver side) position of the 2008-2011 Subaru Impreza AWD and 2008-2014 Subaru Impreza WRX. KYB is Subaru's original equipment supplier - virtually every Subaru leaves the factory on KYB dampers - making the Excel-G the natural choice for restoring the Impreza's original suspension performance. This is a bare strut only; the coil spring, strut mount, bearing plate, and insulators are not included and must be reused or purchased separately. All installation hardware (washers, bushings, nuts) is included; factory mounting bolts are reused. Shock boots are sold separately. For the front right, see companion part 339171. For the rear, see 341487.

The Excel-G carries the OEA (Original Equipment for the Aftermarket) classification - built on the same KYB global OE assembly lines with the same components and processes used in Subaru production, calibrated specifically to restore the original handling and control characteristics of the GH/GV-chassis Impreza platform. The twin-tube nitrogen gas design features two multi-stage valves that provide consistent damping across all driving conditions, and the precision sintered iron strut rod guide helps maintain correct wheel alignment geometry throughout the strut's service life. Made in the USA. Backed by KYB's Lifetime Warranty to the original purchaser. Front wheel alignment required after installation.