KYB 341728 Shock Absorber - Rear Left

KYB Excel-G Rear Left Shock for BMW X5/X6

The KYB Excel-G 341728 is a rear left suspension shock absorber engineered to restore original ride control, stability, and handling. It is a direct OE-style replacement for select BMW X5 and BMW X6 applications, with vehicle-specific damping calibrated to return the suspension to designed performance.

Key Features

• KYB Excel-G OEA replacement shock absorber for OE-style performance restoration
• Nitrogen gas-charged, twin-tube design for consistent damping response
• Vehicle-specific, hand-assembled damping valves for tire contact, steering response, and body control
• Triple-lip fluid seal helps reduce oil and gas leakage
• Internal rebound spring and R-stop design support controlled suspension movement
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Fits BMW X5 and BMW X6 rear left applications listed below

Product Details

KYB Excel-G shocks and struts are built on the same OE assembly lines used for original equipment production and use OE-quality components to restore, not alter, factory ride characteristics. Part number 341728 is a rear left suspension shock absorber with a compressed length of 15.86 in., extended length of 19.17 in., and stroke length of 3.31 in. It uses an E2 lower mount (15.5 x 66.1) and an S1 upper mount (12 mm). This part cross-references Monroe Shocks & Struts 37347 for the same application.

For BMW X5 and BMW X6 owners looking for a rear left OE replacement shock, the KYB Excel-G 341728 is built to restore the vehicle’s original control, lane-change response, and braking stability. The part number 341728 is commonly selected when the goal is to return suspension behavior to factory specifications rather than change ride feel.

What It Helps Address

• Excessive bouncing or oscillation after bumps
• Reduced rear suspension control during cornering or lane changes
• Uneven tire contact caused by worn damping
• Brake dive or unstable stopping feel from weak rear shocks
• Suspension noise or fluid leakage from aging shock components

Installation Notes

• Fits 2008-2014 BMW X6, rear left, recommended OE replacement; w/o Sport Package, w/o Self Leveling and Electronic Suspension; Excel-G
• Fits 2007-2013 BMW X5, rear left, recommended OE replacement; (Exc. Electronic, Self Leveling and Sport Suspension); w/o 3rd Row Seating; Excel-G
• Verify mount style, suspension package, and position before installation
• Inspect related suspension components, alignment settings, and tire condition during replacement
• Confirm the vehicle is equipped for rear left fitment before ordering

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is produced to restore original vehicle performance using OE-quality components and application-specific damping calibration. Part number 341728 is built for consistent fitment and factory-style ride control in the listed BMW X5 and BMW X6 applications.