Bilstein 24-249638 Suspension Shock Absorber - Rear

Bilstein B8 Rear Shock for Lowered MX-5 Miata

The Bilstein B8 Performance Plus rear shock absorber is built for drivers upgrading the suspension on a lowered Mazda MX-5 Miata or Fiat 124 Spider. Part number 24-249638 pairs application-specific valving with a monotube design to sharpen handling response and support a sportier stance.

Key Features

• Bilstein B8 Performance Plus series rear shock absorber
• Monotube internal design for consistent damping response
• Application-specific valve settings tuned for lowered-spring setups
• Yellow painted finish
• Upper stem mount and lower clevis mount
• No boot included
• Cross-reference: Monroe Shocks & Struts 172286

Product Details

Bilstein B8 Performance Plus dampers are engineered as an OE-style performance upgrade for vehicles running aftermarket lowering springs. This rear shock absorber, part number 24-249638, is compatible with 2016-2025 Mazda MX-5 Miata rear applications and 2017-2020 Fiat 124 Spider rear applications. The monotube construction helps maintain damping consistency, while the valving is matched to the intended suspension setup for improved control and road feel. Bilstein Shock Absorbers in the B8 Performance Plus line are built for drivers who want a firmer, more responsive rear suspension without changing the vehicle’s basic mounting layout.

What This Shock Absorber Helps Address

• Excessive rear suspension bounce after lowering the vehicle
• Reduced control during cornering and quick transitions
• Inconsistent damping feel with OE shocks on lowered springs
• Rear-end instability over uneven pavement
• Loss of ride control from worn factory dampers

Installation Notes and Tips

Compatible With 2016-2025 Mazda MX-5 Miata, rear, and 2017-2020 Fiat 124 Spider, rear. Verify that the vehicle is equipped with lowering springs before selecting this B8 Performance Plus shock absorber. Confirm upper stem and lower clevis mounting points match the original suspension layout before installation. Part number 24-249638 is intended for rear placement only.

Quality Assurance

Bilstein tests each B8 Performance Plus damper to meet or exceed OE standards, supporting consistent quality and fitment for performance suspension use.