KYB 339103 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for Toyota Sienna

KYB Excel-G part 339103 is a front left suspension strut for 2007-2010 Toyota Sienna models. It is built to restore original ride control, steering response, and stability for the Toyota Sienna, with OE-style calibration and vehicle-specific damping.

Key Features

• Fits 2007-2010 Toyota Sienna, front left
• Excel-G line is calibrated to restore factory ride control and handling
• Nitrogen gas-charged twin-tube design
• Triple-lip fluid seal helps reduce oil and gas leakage
• Hand-assembled, vehicle-specific damping valves manage tire contact and body motion
• Strong strut body and bracket design helps maintain alignment under load
• Made in USA
• Recommended new strut mount: SM5423 to reduce noise and vibration

Product Details

The KYB Excel-G brand line is focused on OE-style replacement performance rather than changing the vehicle’s character. Part number 339103 is made on KYB OE assembly lines using OE-quality components and is classified as an Original Equipment for the Aftermarket replacement. For 2007-2010 Toyota Sienna front left applications, this strut is engineered to help restore the designed balance of ride comfort, lane-change response, braking stability, and handling. This part cross-references Monroe Shocks & Struts 72366 for the same application.

What This Strut Helps Address

• Excessive bounce or float from a worn front strut
• Reduced steering response during lane changes
• Uneven tire contact caused by weak damping control
• Noise or vibration from aging suspension components
• Loss of stability and braking confidence on a Toyota Sienna

Installation Notes

Compatible with 2007-2010 Toyota Sienna front left applications, including 8-passenger seating models listed in the fitment data. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. KYB recommends installing a new strut mount, part number SM5423, to help reduce noise and vibration. Verify all mounting dimensions, including compressed length 17.19, extended length 23.26, stroke length 6.07, and upper mount type 14X1.50 before installation.

Quality Assurance

KYB supplies shocks and struts to new vehicle manufacturers, and the Excel-G line uses the same OE-quality manufacturing approach to restore original performance characteristics. Part number 339103 is built for consistent damping control and alignment support in everyday driving conditions.