Bilstein B4 OE Replacement Series gas pressure shocks and struts are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world-famous Bilstein quality. Mercedes-Benz 280S 1976-1975; 280SE 1980-1977; 300SD 1985-1978; 300SDL 1987-1986; 300SE 1991-1988; 300SEL 1991-1990; 350SD 1991; 350SDL 1991-1990; 380SE 1985-1984; 380SEC 1983-1982; 380SEL 1983-1981; 420SEL 1991-1986; 450SE 1976-1973; 450SEL 1980-1973; 500SEC 1985-1984; 500SEL 1985-1984 Mercedes-Benz 280S 1976-1975, 280SE 1980-1977, 300SD 1985-1978, 300SDL 1987-1986, 300SE 1991-1988, 300SEL 1991-1990, 350SD 1991, 350SDL 1991-1990, 380SE 1985-1984, 380SEC 1983-1982, 380SEL 1983-1981, 420SEL 1991-1986, 450SE 1976-1973, 450SEL 1980-1973, 500SEC 1985-1984, 500SEL 1985-1984