The Bilstein B6 24-002486 is a front 46mm monotube shock from the B6 4600 series, aimed at owners of the 1975 Toyota Land Cruiser Base who want to replace worn stock dampers. The monotube body is designed for fade-free damping, so control holds up on washboard tracks, long grades, and sustained off-road use. A velocity-sensitive digressive piston responds differently to small bumps and sharp impacts, which is the main reason to pay more than for a basic replacement. Bilstein's B6 4600 line is tuned for each application, so this unit is set up for the FJ40's weight and suspension geometry rather than generic use.
This shock is built for stock-height trucks, so it suits a 0-inch lift setup rather than a lifted build. The fitment listed for this part number covers the Base trim of the Land Cruiser from 1975 to 1982 in 4WD form. Because it is a bolt-in front unit, it works well as part of a front-end refresh with new bushings or springs. Fitment details vary across sources, so confirm the model year, trim, and 4WD status with the manufacturer before ordering.