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 300SD 1985-1981; 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; 500SEC 1985-1984; 500SEL 1985-1984; 560SEC 1991-1986; 560SEL 1991-1986 Mercedes-Benz 300SD 1985-1981, 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, 500SEC 1985-1984, 500SEL 1985-1984, 560SEC 1991-1986, 560SEL 1991-1986