Bilstein CA4 Series shock absorbers are designed specifically for custom street rod applications that require unique lengths and valve settings for the proper chassis setup. Built around a billet aluminum monotube design, these shock absorbers feature a 46mm piston, threaded body, 5/8 inch polyurethane bushing mounts and various lengths and valve settings to choose from. Each shock absorber is supplied with a hard anodized spring seat, lock ring, and hat to accommodate a 2.5 inch ID spring. Bilstein CA4 Series shock absorbers provide a wide range of options to support any custom street rod application need.
While the ThyssenKrupp Bilstein Company began as a German enterprise, Bilstein shocks are developed and manufactured in Hamilton, Ohio. Bilstein develops and fabricates premium quality monotube shock absorbers directly for automobile manufactures, aftermarket outfits and motorsports applications. The precision and craftsmanship in manufacturing that fueled company growth in Germany were brought straight to the factory in Hamilton, Ohio. The factory includes an engineering department, rigorous shock testing facility and a motorsports track. The track allows the engineers to tweak their designs in response to real world testing during development. The rigorous testing allows for designs to go through a machine simulated life of a shock absorber in all kinds of terrain conditions. The resulting products promise the highest in performance. Shop Bilstein Now