Bilstein 25-294071 Suspension Shock Absorber - Rear

Bilstein B8 8100 (DSA) Rear Shock

The Bilstein B8 8100 (DSA) reservoir shock absorber is built for lifted trucks and SUVs that need controlled damping over rough terrain. This rear shock for the 2005-2023 Toyota Tacoma uses a large-bore 60mm monotube design, dual speed compression adjustment, and a reservoir layout to manage heat and maintain consistent performance.

Key Features

• Part number 25-294071
• Fits 2005-2023 Toyota Tacoma, rear
• Click adjusters for high- and low-speed compression tuning
• 60mm piston and 60mm ID shock body for increased oil volume
• Monotube internal design for fade-resistant damping
• Remote or piggyback reservoir configuration for straightforward installation
• EVO Grey finish
• Lower mount: eye 12mm; upper mount: stem
• Collapsed length: 14.25 in. / 362.0 mm; extended length: 22.80 in. / 579.0 mm

Product Details

Bilstein’s B8 8100 (DSA) line focuses on adjustable suspension control for light trucks, with a direct-fit reservoir shock format and application-specific digressive valving. On the Toyota Tacoma rear application, part number 25-294071 provides a large 60mm piston, an 18mm shaft, and a monotube layout that helps keep damping consistent during repeated compression cycles. The dual speed adjustment lets you fine-tune low- and high-speed compression for changing road and trail conditions.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive rear suspension bounce on rough roads
• Heat-related damping fade during long-distance driving
• Reduced control on lifted Toyota Tacoma setups
• Harsh or unsettled rear ride quality over broken pavement
• Need for compression tuning across mixed street and off-road use

Installation Notes

Compatible with 2005-2023 Toyota Tacoma rear applications listed above. The fitment note requires wheels with a maximum of 4.75 inches of backspacing. Verify collapsed and extended length, mount style, and reservoir clearance before installation. Part number 25-294071 is a rear shock absorber and should be matched to the vehicle’s suspension setup and lift height.

Quality Assurance

Bilstein builds the B8 8100 (DSA) series with aerospace-quality billet components, a monotube shock body, and application-specific valve tuning for consistent damping control.