Bilstein B8 5125 33-104645 Monotube Eye-to-Eye Suspension Shock Absorber

B8 5125 - Suspension Shock Absorber

Bilstein B8 5125 part number 33-104645 is a high-pressure gas monotube suspension shock absorber designed for custom applications and light-truck suspension builds. Its eye-to-eye mounting configuration uses industry-standard 5/8-inch eye bushings at both ends, making it a practical solution for vehicles without a direct-fit Bilstein application. The zinc-plated smooth body provides durable corrosion resistance and a clean installation appearance, while the included black bellows boot helps protect the shock shaft from road debris.
The 46mm monotube design helps maintain consistent, fade-resistant damping performance during demanding driving conditions. Bilstein’s self-adjusting deflective disc valving is engineered to respond to changing suspension loads, supporting controlled handling and improved ride quality across varied terrain. This shock absorber features non-adjustable damping, a 14mm shaft, and a 10.01-inch stroke for dependable suspension travel in custom configurations. It does not include a reservoir, coilover body, or spring seat.
With a compressed length of 15.91 inches and an extended length of 25.91 inches, the Bilstein B8 5125 33-104645 is intended for applications requiring a longer-travel custom shock solution. Its compression force rating is 595 and rebound force rating is 1,810 at 0.52 meters per second. The shock is compatible with select Ford Excursion, F-250 Super Duty, and F-350 Super Duty applications from model years 1999 through 2005; verify vehicle specifications and suspension requirements before ordering. This product carries a California Proposition 65 warning for cancer and reproductive harm: www.P65Warnings.ca.gov.

Ford Excursion 2000-2005
Ford F-250 Super Duty 1999-2004
Ford F-350 Super Duty 1999-2004