{"product_id":"a5558554-mahle-alternator-12v-75a","title":"Mahle Alternator 12V 75A MG479","description":"\u003cp\u003eThe Mahle Alternator MG479 is a new 12V, 75A alternator supplied as each unit, with a one year warranty. It is listed with OEM number 11204382 and is designed as a single leg alternator with an internal regulator, which are key details to match when checking a replacement.\u003c\/p\u003e\n\u003cp\u003eThis unit is supplied with a belt pulley and uses a B pulley section, with a pulley outside diameter of 85mm. The alternator rotates clockwise and is specified with one belt, so it is important to compare the pulley and belt arrangement against the unit being replaced before ordering.\u003c\/p\u003e\n\u003cp\u003ePhysical mounting details are also defined: mount leg thickness is 56mm, pivot hole diameter is 8, mounting bores distance is 56.0, mounting points diameter is 86.0, and the adjusting hole diameter is M8x1.25. Those measurements matter just as much as the electrical rating when confirming the correct replacement.\u003c\/p\u003e\n\u003cp\u003eMahle identifies this alternator as part number MG479 and pin code IR165, with a listed power rating and charge current of 75A at 12V. If the existing alternator differs in mount style, pulley setup, rotation, or regulator type, that should be checked carefully before fitting.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNew Mahle alternator\u003c\/li\u003e\n\u003cli\u003e12V system, 75A output\u003c\/li\u003e\n\u003cli\u003eInternal regulator\u003c\/li\u003e\n\u003cli\u003eSingle leg alternator mount\u003c\/li\u003e\n\u003cli\u003eSupplied with belt pulley\u003c\/li\u003e\n\u003cli\u003eClockwise rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Mahle\u003c\/li\u003e\n\u003cli\u003ePart No.: MG479\u003c\/li\u003e\n\u003cli\u003eOEM Number: 11204382\u003c\/li\u003e\n\u003cli\u003eVoltage: 12V\u003c\/li\u003e\n\u003cli\u003ePower Rating \/ Charge Current: 75A\u003c\/li\u003e\n\u003cli\u003eRegulator Type: Internal\u003c\/li\u003e\n\u003cli\u003eAlternator Mount: Single Leg\u003c\/li\u003e\n\u003cli\u003eRotation: CW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKnown fitment references\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJohn Deere 3029D\u003c\/li\u003e\n\u003cli\u003eJohn Deere 4.239T\u003c\/li\u003e\n\u003cli\u003eJohn Deere 4.276D\u003c\/li\u003e\n\u003cli\u003eJohn Deere 4039T\u003c\/li\u003e\n\u003cli\u003eJohn Deere 4045H\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and Buying Notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, compare the part number MG479 and OEM number 11204382 with the alternator being replaced. The mounting pattern is specific: single leg mount, 56mm mount leg thickness, 56.0 mounting bores distance, 86.0 mounting points diameter, and an M8x1.25 adjusting hole. If any of those points differ on the current unit, the alternator may not suit without further checking.\u003c\/p\u003e\n\u003cp\u003eThe electrical side should also be matched with care. This alternator is 12V and rated at 75A, with an internal regulator. That means the vehicle or machine must be set up for the same voltage and regulator arrangement, rather than relying on appearance alone.\u003c\/p\u003e\n\u003cp\u003ePulley details are another important checkpoint. This unit has a belt pulley, B section pulley, 85mm outside diameter, clockwise rotation, and one-belt setup. If the original alternator uses a different pulley profile, belt count, or rotation, the replacement should be confirmed against the existing application before installation.\u003c\/p\u003e\n\u003cp\u003eWhere fitment is listed against John Deere applications, use it as a reference point only and still verify against the machine currently fitted. Matching the stated application, part number, and mounting dimensions is the safest way to avoid downtime and unnecessary returns.\u003c\/p\u003e\n\u003cp\u003eThe alternator is sold individually and is a new unit, not remanufactured. For buyers comparing options, that means the key checks are the same whether the machine is a John Deere 3029D, 4.239T, 4.276D, 4039T, or 4045H reference application: part number, voltage, amperage, regulator type, and the mounting and pulley measurements.\u003c\/p\u003e\n\u003cp\u003eBefore supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.\u003c\/p\u003e\n\u003cp\u003eFor workshop, fleet, and equipment applications, accurate identification of part number MG479 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.\u003c\/p\u003e\n\u003cp\u003eRelevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty One Year, Mount Leg Thickness 56mm, Pivot Hole Diameter 8, Pulley Outside Diameter 85mm, Regulator Type Internal, Suits Unit Make Mahle, Alternator Mount Single Leg, OEM Number 11204382.\u003c\/p\u003e\n\u003cp\u003eAdditional published details for cross-checking include Pulleys with belt pulley, Mounting points diameter 86.0, Distance from pulley to the alternator 27.7, Packaging width 17.60, Net Weight 4770, Product Group 1 ROTATING ELECTRICAL, Part No. MG479, Brand MAHLE, Description Mahle Alternator 12V 75A, Adjusting Hole Diameter M8x1.25.\u003c\/p\u003e\n\u003cp\u003eMahle Alternator 12V 75A. Part number MG479 should be checked first. Listed voltage is 12. Listed output rating is 75. These details form the core reference points used by parts interpreters when confirming the correct replacement.\u003c\/p\u003e\n\u003cp\u003eMount style is Single Leg. Regulator type is Internal. Pulley configuration is B. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.\u003c\/p\u003e\n\u003cp\u003eFor part number MG479, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.\u003c\/p\u003e\n\u003cp\u003eFor a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 75 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.\u003c\/p\u003e\n\u003cp\u003eAvailable application references include JOHN DEERE 3029D, JOHN DEERE 3029D 1995, JOHN DEERE 4.239T, JOHN DEERE 4.239T 1989. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm compatibility by checking the part number MG479, OEM number 11204382, and the listed mounting, pulley, voltage, and regulator details against the alternator currently fitted to the machine.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eWhat is the output of this alternator?\u003c\/h4\u003e\n\u003cp\u003eIt is rated at 12V and 75A, with the alternator charge current also listed as 75A.\u003c\/p\u003e\n\u003ch4\u003eDoes this alternator have an internal regulator?\u003c\/h4\u003e\n\u003cp\u003eYes. The regulator type is listed as internal.\u003c\/p\u003e\n\u003ch4\u003eIs the pulley included?\u003c\/h4\u003e\n\u003cp\u003eYes. It is listed as supplied with a belt pulley.\u003c\/p\u003e\n\u003ch4\u003eWhat rotation does this alternator use?\u003c\/h4\u003e\n\u003cp\u003eThe rotation is clockwise (CW).\u003c\/p\u003e\n\u003ch4\u003eWhat part numbers should I check before buying?\u003c\/h4\u003e\n\u003cp\u003eCheck Mahle part number MG479 and OEM number 11204382 against the unit being replaced.\u003c\/p\u003e\n\u003ch4\u003eWhich measurements are most important for fitment?\u003c\/h4\u003e\n\u003cp\u003eKey measurements listed are mount leg thickness 56mm, pivot hole diameter 8, mounting bores distance 56.0, mounting points diameter 86.0, adjusting hole diameter M8x1.25, pulley outside diameter 85mm, and distance from pulley to the alternator 27.7.\u003c\/p\u003e","brand":"MAHLE","offers":[{"title":"Default Title","offer_id":56888719704224,"sku":"A5558554","price":830.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5058\/0875\/files\/kq_A7vTVHSciHg2zEWdjLw_7f547361-7711-40b5-b55d-5cda040b21f2.jpg?v=1775121788","url":"https:\/\/www.micksgonebush.com.au\/products\/a5558554-mahle-alternator-12v-75a","provider":"Micks Gone Bush","version":"1.0","type":"link"}