The Bilstein B6 4600 24-187824 is a front monotube gas shock with a 46mm body, sold for the 1998-2004 Nissan Frontier pickup line. The manufacturer says the B6 4600 is a direct-fit upgrade for stock-height light trucks and SUVs. It uses a velocity-sensitive digressive piston that changes damping with road input, so a worn factory unit can be replaced with one valved for the vehicle. The manufacturer also describes a monotube design that resists fade during sustained use, which matters for towing, long grades, and repeated hard driving. Compared with a budget twin-tube replacement, this is a stronger choice for a Frontier that carries loads or runs rough backroads.
Fitment is the main point to verify before ordering. Sources disagree on drive type for this front part number, with some listing RWD and others 4WD, and on whether it suits a stock or lifted front end, so confirm by VIN with the manufacturer. Front shocks are generally a wheel-off job, and owners on user forums report that the upper stem nut can be seized from corrosion and may need a helper to hold the shock while it is loosened. Plan a four-wheel alignment afterward, since a new shock can change ride height. Search terms this fits include 2004 Nissan Frontier XE RWD front shock upgrade, Bilstein B6 4600 46mm monotube, and digressive piston front damper.
Fitment information for this part number varies across sources, including on drive type (RWD versus 4WD). Confirm the correct application for your VIN with the manufacturer before purchasing.
The manufacturer describes the B6 4600 line as a direct-fit upgrade for stock-height trucks and SUVs. Lift-compatibility details for this specific front part number vary, so confirm with the manufacturer if your truck is lifted.
This is a moderate DIY job that most owners can finish in a driveway with basic hand tools. Owners on user forums describe the front procedure as removing the wheel, loosening a 14mm upper nut and a 17mm lower bolt, and swapping the unit, with a jack, jack stands, and a torque wrench needed for the lug nuts. The most common gotcha is corrosion on the upper stem nut, so soak it with penetrating oil and have a helper hold the shock stem to stop it turning. Torque specifications for the lower bolt differ between published sources, so check a factory service manual before final tightening. Get a four-wheel alignment afterward.
