Shock SZ/SL 9in Comp 1 Reb 4

The BILSTEIN Shock SZ/SL 9in Compensator 1 Rebound 4 (part number 33-329185) is a premium monotube shock absorber engineered for vehicles demanding digressive damping control and superior off-road performance. This single-unit shock compresses to 14.88 inches and extends to 23.52 inches, making it ideal for suspension systems requiring precise stroke management and consistent dampening across varying terrain and load conditions.

Built with BILSTEIN's SZ-series monotube design and finished in zinc-plated steel, this shock features a 1.81-inch outer diameter and digressive valve calibration. The C1-R4 valve setup delivers one compression stage and four rebound stages, allowing the shock to respond differently under acceleration and deceleration. Digressive tuning means the damping force increases progressively as shaft velocity rises, providing firm support during hard cornering and braking while maintaining compliance on minor bumps. The 1 compression / 4 rebound configuration balances ride quality with load-carrying capability, making this shock suitable for trucks, SUVs, and performance vehicles operating in demanding conditions.

This shock is engineered for buyers who require factory-grade or upgrade suspension replacement for off-road exploration, towing applications, or daily driving on rough terrain. BILSTEIN shocks are standard equipment on many OEM platforms and preferred by suspension specialists building long-travel or lifted systems. The zinc-plated finish resists corrosion in wet and salt-air environments, ensuring durability in harsh climates. At 4.43 pounds, this is a genuine replacement or upgrade unit suitable for front or rear suspension mounting depending on your vehicle platform and suspension geometry.