Suspension Shock Absorber Rear Monotube Toyota Tacoma 2023-2005 B8 8100 Bilstein

The Bilstein B8 8100 (25-294064) is a rear monotube shock absorber built specifically for the 2005–2023 Toyota Tacoma running 0–1.5 inches of rear lift. The 2.65-inch OD shock body is machined from aerospace-quality billet components, and that larger diameter translates directly to higher oil volume capacity — which matters when you're generating heat over long stretches of rough terrain.

The 60mm digressive piston runs a velocity-sensitive valve tune dialed in for this application, not a generic calibration. Monotube construction keeps oil and gas separated for fade-free damping, and the reservoir — available in remote or piggyback configuration — adds further oil capacity to maintain consistent performance when trails get extended. Collapsed length is 14.25 inches, extended is 22.8 inches, with an 18mm shaft diameter, stem upper mount, and 12mm eye lower mount.

Wheel fitment is a real consideration here: 2005–2022 applications require a maximum of 4.75 inches of backspacing, while 2023 trims tighten that to 4.5 inches — verify your wheels before ordering. The B8 8100 is a direct-fit unit, so no drilling or fabrication is needed. It ships with a limited lifetime warranty and finishes in Bilstein's EVO Grey.