For 1990-1991 Mercedes 350SDL A/C High Side Pressure Switch 66183WTZQ 3.4L 6 Cyl
$34.37
Notes: HVAC Pressure Switch -- 3/8" 24 UNF Male; With O-Ring; Plug (Connector): 2 Pins. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.