Manufacturer Part Number CSW1022. Reference OE/OEM Number 8 KW 510 157, KW 510 159, LEMARK LBS110, LEMARK LCSW023. Clutch Switch. Type Clutch Switch. Housing Colour Brown. Fuel Mix Direct Injection. Reference OE/OEM Number 5 FIAT 46512059, FIAT 46752843, FIAT 500365771, FUEL PARTS BLS1174.