Mercedes (select 68-81 models) Window Switch REAR Door Left or Right GENUINE Window Switch with Chrome surround, fits REAR Door, L or R. Mercedes part# 001 821 51 51, check fit below. Brand NEW Genuine Mercedes part with full 1 year warranty. NOTE: w108 280 has a VIN split, please see chart below. Please see FITMENT CHART below, under PRODUCT DESCRIPTION.