Bilstein 25-320459 Suspension Shock Absorber - Rear Right

Bilstein B8 8100 (Bypass) Shock Absorber Overview

The Bilstein B8 8100 (Bypass) shock absorber, part number 25-320459, is engineered for Toyota Tacoma light trucks requiring advanced suspension performance. Designed with a monotube internal structure and bypass body, this shock absorber offers precise control over compression and rebound damping.

• Double adjustable compression and rebound damping with click adjuster knob
• Bypass body design (non-coilover)
• Monotube internal design for consistent performance
• Reservoir included for improved heat dissipation
• Collapsed length: 14.25 inches (362 mm), Extended length: 23.94 inches (608 mm)
• 60mm piston diameter and 18mm shaft diameter
• Eye 12mm lower mount and stem upper mount
• Evo grey finish for corrosion resistance

Detailed Product Description

The Bilstein B8 8100 (Bypass) shock absorber is specifically designed for light trucks like the Toyota Tacoma, providing enhanced suspension tuning through its double adjustable damping system. The click adjuster knob allows independent adjustment of compression and rebound, enabling drivers to fine-tune ride quality and handling characteristics according to their driving conditions. Featuring a monotube internal design, this shock absorber maintains consistent damping performance and heat dissipation during extended use.

The bypass body design distinguishes this shock from coilover types, offering a robust structure suitable for off-road and heavy-duty applications. The integrated reservoir improves fluid capacity and cooling, reducing fade during demanding driving. With a piston diameter of 60mm and a shaft diameter of 18mm, the shock absorber delivers reliable response and durability. The eye 12mm lower mount and stem upper mount ensure proper fitment and secure installation on the Toyota Tacoma.

About the B8 8100 (Bypass) Product Line

The B8 8100 (Bypass) series from Bilstein is tailored for light trucks requiring adjustable suspension components that balance on-road comfort with off-road capability. This product line features bypass body shock absorbers with monotube construction and reservoirs, designed to provide precise damping control through double adjustable compression and rebound settings. The 25-320459 part number is a representative model within this series, optimized for Toyota Tacoma applications.

Applications and Problem Solving

• Improves handling and stability on uneven terrain for Toyota Tacoma trucks
• Reduces suspension fade during extended off-road or heavy load use
• Allows customization of ride firmness and rebound for varied driving conditions
• Addresses excessive body roll and harshness in stock suspension setups
• Enhances suspension response for towing and payload applications

Installation Notes and Tips

Ensure compatibility with Toyota Tacoma models before installation. The shock absorber features an eye 12mm lower mount and stem upper mount, so verify mounting points for proper fit. Adjust damping settings gradually using the click adjuster knob to find the optimal balance between comfort and control. No spring seat or boot is included, so plan accordingly if your setup requires these components.

Quality Assurance

Bilstein shock absorbers are manufactured to meet strict quality standards, ensuring durability and consistent performance. The monotube design and integrated reservoir contribute to long service life under demanding conditions. Warranty information is available through Bilstein and should be confirmed at the time of purchase.