{"product_id":"new-3909888-fan-blade-hub-fan-support-for-cummins-4b-4bt-6bt-fan-hub-4932912","title":"New 3909888 Fan Blade Hub FAN SUPPORT for Cummins 4B 4BT 6BT Fan Hub 4932912","description":"\u003ch2\u003eFan Blade Hub for Cummins\u003c\/h2\u003e\u003cp\u003eThis fan blade hub (fan support) with OEM cross-reference numbers 3909888 and 4932912 mounts the cooling fan on Cummins 4B, 4BT, and 6BT engines to maintain proper airflow through the radiator.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis fan blade hub assembly replaces OEM parts 3909888 and 4932912 and is designed for Cummins 4B, 4BT, and 6BT diesel engines. It supports the engine cooling fan securely while allowing smooth rotation to draw air across the radiator. The hub is built to withstand high rotational speeds and thermal cycling common in heavy-duty applications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMachined from cast iron for strength and vibration damping\u003c\/li\u003e\n\u003cli\u003ePrecision bearings reduce friction and extend service life\u003c\/li\u003e\n\u003cli\u003eIntegrated pilot alignment ensures concentric fan mounting\u003c\/li\u003e\n\u003cli\u003ePre-drilled bolt pattern matches OEM fan blade configurations\u003c\/li\u003e\n\u003cli\u003eHeat-treated flange resists warping from engine heat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Cummins 4B\u003c\/li\u003e\n\u003cli\u003efor Cummins 4BT\u003c\/li\u003e\n\u003cli\u003efor Cummins 6BT\u003c\/li\u003e\n\u003cli\u003efor engines using fan hub part 4932912\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn or broken fan supports in industrial generators\u003c\/li\u003e\n\u003cli\u003eRestoring cooling system integrity in agricultural tractors and combines\u003c\/li\u003e\n\u003cli\u003eRebuilding fan drive assemblies on construction equipment like excavators\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\u003e3909888, 4932912\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBearing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealed ball bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBolt Hole Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\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 Is this fan hub compatible with aftermarket fan blades? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the hub accepts standard 4-bolt pattern fan blades commonly used on Cummins engines, but verify blade bolt spacing before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if the fan hub needs replacement? \u003cstrong\u003eA:\u003c\/strong\u003e Signs include wobbling fan blades, unusual noise from the front of the engine, or visible wear on the bearing seal.\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":44962670870614,"sku":"ZZ2Z01908","price":137.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/12_e792f187-be16-40f7-bf29-2548543464ac.jpg?v=1781612850","url":"https:\/\/www.solidspare.com\/products\/new-3909888-fan-blade-hub-fan-support-for-cummins-4b-4bt-6bt-fan-hub-4932912","provider":"Solid Spare","version":"1.0","type":"link"}