Bilstein 24-348195 B6 Performance Rear Shock for 2003-2008 BMW Z4 E85 Roadster

Vehicle Fitment

• 2003-2005 BMW Z4 2.5i (E85 Roadster)
• 2003-2005 BMW Z4 3.0i (E85 Roadster)
• 2006-2008 BMW Z4 Roadster 3.0i (E85)
• 2006-2008 BMW Z4 Roadster 3.0si (E85)
• 2006-2008 BMW Z4 Coupe 3.0si (E86)

Fitment Notes

• Rear position only - driver or passenger side; sold individually (one shock per order); order two for a complete rear pair
• Fits both E85 (Roadster/convertible) and E86 (Coupe) body styles - same rear shock across both configurations
• Does NOT fit the E89 Z4 (2009-2016) - that generation uses a completely different rear suspension design; confirm your Z4 is the E85/E86 generation (2003-2008) before ordering
• B6 Performance upgrade - designed as an improved OE replacement; pairs with factory OE springs - no spring replacement required; height-neutral
• Factory shock mounting bolts are reused during installation - all necessary hardware included
• Alternate/companion part number at BimmerWorld: 24-104906 - may reference a previous iteration of the same application

Features

• Bilstein B6 Performance product line - an improved OE replacement delivering increased durability, performance, and handling precision while maintaining ride comfort on factory springs
• Monotube gas pressure design - single-tube construction provides superior heat dissipation and consistent fade-free damping, maintaining full damping performance through spirited driving conditions appropriate to the Z4's sports car character
• Application-specific valve calibration - individually road-tested and tuned for the E85/E86 Z4's rear suspension geometry and RWD sports car weight distribution
• Works with factory OE springs - no spring replacement, modification, or additional hardware required; height-neutral design maintains factory ride height
• Bilstein is BMW's OEM supplier - same engineering standards and manufacturing quality as BMW factory equipment applied to every B6 unit

Specifications

• Product Line: Bilstein B6 Performance
• Position: Rear (Driver or Passenger Side - sold individually)
• Shock Type: Monotube Gas Pressure
• Application: Performance upgrade - use with factory OE springs; height-neutral
• Chassis: BMW E85 (Z4 Roadster), BMW E86 (Z4 Coupe)
• Drivetrain: RWD
• UPC: 651860963181
• Quantity: 1 (sold individually - order 2 for complete rear pair)
• Vehicle: 2003-2008 BMW Z4 (E85 Roadster & E86 Coupe)
• Warranty: Limited Lifetime (original purchaser; against defects in workmanship and materials)

Included Components

• 1x Bilstein B6 Performance Rear Monotube Shock Absorber
• All necessary hardware for installation
• Note: Factory mounting bolts are reused; coil spring is NOT included - use with factory OE springs

Product Description

The Bilstein 24-348195 is a B6 Performance rear monotube shock absorber designed as a direct performance upgrade for the 2003-2008 BMW Z4 in both E85 Roadster and E86 Coupe body styles. It delivers Bilstein's improved OE replacement performance - increased durability and handling precision over factory stock dampers - while maintaining ride comfort and factory ride height when paired with the OE coil springs.

The E85/E86 Z4 is a rear-wheel-drive sports car with rear suspension demands that reward a properly calibrated, heat-stable damper. Bilstein's monotube construction and application-specific valving address both requirements, providing consistent fade-free performance through the Z4's full suspension travel. Bilstein is BMW's OEM suspension supplier, making the B6 a natural upgrade choice for Z4 owners seeking to improve on worn or aging stock dampers. Important: this part is specific to the E85/E86 Z4 generation (2003-2008) - the completely redesigned E89 Z4 (2009-2016) requires different rear dampers. Sold individually - order two for a complete rear pair.