{"product_id":"radiator-auxiliary-fan-switch-61311378073-for-bmw-e36-325i-m3-530i-535i-z3","title":"Radiator Auxiliary Fan Switch 61311378073 for BMW E36 325i M3 530i 535i Z3","description":"\u003ch2\u003eRadiator Auxiliary Fan Switch for BMW\u003c\/h2\u003e\u003cp\u003eThis replacement radiator auxiliary fan switch triggers the cooling fan to prevent engine overheating, cross-referencing part number 61311378073.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis radiator auxiliary fan switch is engineered to monitor coolant temperature and activate the auxiliary fan. Proper cooling system regulation keeps your engine running within optimal operating temperatures, making this radiator auxiliary fan switch essential for daily drivers and track-day enthusiasts alike. This radiator auxiliary fan switch provides a critical safety margin against overheating in heavy traffic or high-stress driving.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBrass housing for corrosion resistance and thermal conductivity.\u003c\/li\u003e\n\u003cli\u003ePrecision bimetal internal contacts for reliable temperature switching thresholds.\u003c\/li\u003e\n\u003cli\u003eDirect-fit electrical connector pins to match factory wiring harnesses.\u003c\/li\u003e\n\u003cli\u003eThreaded body with pre-installed sealing washer for leak-free installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor BMW E36\u003c\/li\u003e\n\u003cli\u003efor BMW 325i\u003c\/li\u003e\n\u003cli\u003efor BMW M3\u003c\/li\u003e\n\u003cli\u003efor BMW 530i\u003c\/li\u003e\n\u003cli\u003efor BMW 535i\u003c\/li\u003e\n\u003cli\u003efor BMW Z3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMonitoring coolant temperatures during prolonged idling.\u003c\/li\u003e\n\u003cli\u003eActivating the auxiliary cooling fan during stop-and-go city driving.\u003c\/li\u003e\n\u003cli\u003ePreventing engine block overheating on hot summer days.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e61311378073\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRadiator Auxiliary Fan Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What temperature triggers this switch? \u003cstrong\u003eA:\u003c\/strong\u003e The switch triggers the fan based on pre-set factory temperature thresholds to match original equipment cooling specs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I install this without draining all the coolant? \u003cstrong\u003eA:\u003c\/strong\u003e It is highly recommended to drain the coolant level below the switch location to prevent spills and air pockets during installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44788910817366,"sku":"SZ1E00644","price":36.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_c1738f10-3dcb-44f5-94f0-56d6bee8ad80.jpg?v=1779933743","url":"https:\/\/www.solidspare.com\/products\/radiator-auxiliary-fan-switch-61311378073-for-bmw-e36-325i-m3-530i-535i-z3","provider":"Solid Spare","version":"1.0","type":"link"}