{"product_id":"12v-alternator-41-8851-fit-thermo-king-sb-400-tier-2-engine-sb-ii-with-d-201","title":"12V Alternator 41-8851 Fit Thermo King SB-400 Tier 2 Engine SB-II with D'201","description":"\u003ch2\u003e12V Alternator for Thermo King SB-400 Tier 2 Engine\u003c\/h2\u003e\u003cp\u003eThis 12V alternator is a reliable direct replacement for Thermo King SB-400 Tier 2 engines, delivering consistent charging output for your refrigeration unit. It fits the SB-II system and works seamlessly with the listed OEM cross-reference D'201. This alternator keeps the battery charged and the reefer running smoothly under continuous load.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis 12V alternator is built to power the electrical system of a Thermo King SB-400 Tier 2 engine, supplying steady current for ignition, controls, and battery charging. It is designed for the specific mounting and pulley configuration of SB-II models, using the D'201 reference for compatibility. This 12V alternator provides the amperage needed for reliable cold-chain performance in over-the-road and stationary refrigeration applications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRated at 12V for consistent charging output\u003c\/li\u003e\n\u003cli\u003eDirect replacement for 41-8851 and D'201 OEM references\u003c\/li\u003e\n\u003cli\u003ePrecision-wound stator and rotor for stable voltage under variable RPM\u003c\/li\u003e\n\u003cli\u003eSealed bearings to resist moisture and road grime\u003c\/li\u003e\n\u003cli\u003eHeavy-duty diode pack handles repeated electrical load spikes\u003c\/li\u003e\n\u003cli\u003eCompact housing engineered to fit the SB-400 Tier 2 engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Thermo King SB-400 Tier 2\u003c\/li\u003e\n\u003cli\u003efor Thermo King SB-II\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMaintains battery charge during multi-stop delivery routes\u003c\/li\u003e\n\u003cli\u003eSupports continuous operation of refrigerator control modules\u003c\/li\u003e\n\u003cli\u003eHandles high electrical demand in hot ambient conditions\u003c\/li\u003e\n\u003cli\u003eReplacement for worn-out charging systems in aging reefer fleets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41-8851, D'201\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermo King SB-400 Tier 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this alternator work if my unit has a different pulley? \u003cstrong\u003eA:\u003c\/strong\u003e The alternator is built to the factory 41-8851 specifications, but if a pulley or mount has been modified, verify the shaft diameter and mounting ears before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this include the voltage regulator? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is the bare alternator unit; the regulator is separate and must be ordered if needed.\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":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46611180716218,"sku":"ZZ3F07342","price":79.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_21e4df80-52cb-4e78-9766-ea268085aabc.jpg?v=1789005809","url":"https:\/\/partoutfitters.com\/products\/12v-alternator-41-8851-fit-thermo-king-sb-400-tier-2-engine-sb-ii-with-d-201","provider":"Part Outfitters","version":"1.0","type":"link"}