{"product_id":"a5604531-bosch-alternator-12v-90a","title":"Bosch Alternator 12V 90A Part No. 1986A00783","description":"\u003cp\u003eThis Bosch alternator is a 12V, 90A unit supplied as each, with part number 1986A00783 and pin code IR139. It is listed with an internal regulator, CW rotation, and a 6 groove pulley, so those details should be checked carefully against the vehicle before ordering.\u003c\/p\u003e\n\u003cp\u003eMounting and physical dimensions matter with alternators, and this unit is specified with a twin leg alternator mount, inside mounting legs of 82mm, mount centres A of 163mm, a pivot hole diameter of 10mm, and an adjusting hole diameter of 8mm. The pulley outside diameter is 64mm.\u003c\/p\u003e\n\u003cp\u003eThe Bosch listing also notes corrosion resistance, quality raw materials, and a reduction drive designed to maintain continual speeds for easier starting. Those are useful construction and operation details, but fitment still depends on matching the part number and application details to the vehicle already fitted.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBosch alternator, 12V 90A\u003c\/li\u003e\n\u003cli\u003ePart number 1986A00783\u003c\/li\u003e\n\u003cli\u003eInternal regulator\u003c\/li\u003e\n\u003cli\u003eCW rotation\u003c\/li\u003e\n\u003cli\u003e6 groove pulley\u003c\/li\u003e\n\u003cli\u003eTwin leg alternator mount\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage: 12V\u003c\/li\u003e\n\u003cli\u003eOutput: 90A\u003c\/li\u003e\n\u003cli\u003eRegulator type: internal\u003c\/li\u003e\n\u003cli\u003eRotation: CW\u003c\/li\u003e\n\u003cli\u003ePulley section: 6 groove\u003c\/li\u003e\n\u003cli\u003ePulley outside diameter: 64mm\u003c\/li\u003e\n\u003cli\u003eAlternator mount: twin leg\u003c\/li\u003e\n\u003cli\u003eInside mounting legs: 82mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment information provided for Audi A4 applications\u003c\/li\u003e\n\u003cli\u003eFitment information provided for Volkswagen Passat applications\u003c\/li\u003e\n\u003cli\u003eAudi A4 references include model years 1995 to 2001 in the supplied application list\u003c\/li\u003e\n\u003cli\u003eVolkswagen Passat references include model years 1996 to 2005 in the supplied application list\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and Buying Notes\u003c\/h3\u003e\n\u003cp\u003eBefore buying, compare the part number 1986A00783, pin code IR139, and the mounting layout against the unit currently fitted to the vehicle. The important physical checkpoints here are the twin leg mount, 82mm inside mounting legs, 163mm mount centres A, 10mm pivot hole diameter, and 8mm adjusting hole diameter.\u003c\/p\u003e\n\u003cp\u003eThe 12V, 90A rating is the electrical specification you need to match to the vehicle’s charging system requirements. The pulley details also matter: this alternator uses a 6 groove pulley with a 64mm outside diameter and CW rotation, so belt style and rotation direction should be confirmed before purchase.\u003c\/p\u003e\n\u003cp\u003eThis alternator is described as using an internal regulator. If the existing unit is regulated differently, or if the connector style and installation layout do not match, the part may not suit the vehicle even if the Bosch branding appears similar. Always verify the full application against the installed alternator rather than relying on appearance alone.\u003c\/p\u003e\n\u003cp\u003eThe provided application list points to Audi A4 and Volkswagen Passat coverage, but that still needs to be checked against the exact year, engine setup, and any changes made during the vehicle’s life. Matching the published application alongside the part number is the safest way to avoid a return or installation delay.\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 1986A00783 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 12 Months, Inside Mounting Legs 82mm, Pin Code IR139, Power Rating (Amp) 90, Pulley Section 6 Groove, Rotation CW, Alternator Mount Twin Leg, Product Group 1 ROTATING ELECTRICAL.\u003c\/p\u003e\n\u003cp\u003eAdditional published details for cross-checking include Part No. 1986A00783, Brand BOSCH, Description Bosch Alternator 12V 90A, Adjusting Hole Diameter 8mm, Mount Centres A 163mm, Pivot Hole Diameter 10mm, Pulley Outside Diameter 64mm, Regulator Type Internal, Voltage 12.\u003c\/p\u003e\n\u003cp\u003eBosch Alternator 12V 90A. Part number 1986A00783 should be checked first. Listed voltage is 12. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.\u003c\/p\u003e\n\u003cp\u003eMount style is Twin Leg. Regulator type is Internal. Pulley configuration is 6 Groove. 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 1986A00783, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm compatibility using part number 1986A00783, pin code IR139, the 12V 90A specification, and the listed mounting and pulley details before ordering. Vehicle application should be checked against the alternator already fitted, especially on Audi A4 and Volkswagen Passat applications.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eWhat is the voltage and output of this alternator?\u003c\/h4\u003e\n\u003cp\u003eIt is specified as 12V with a 90A power rating. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat is the Bosch part number?\u003c\/h4\u003e\n\u003cp\u003eThe listed part number is 1986A00783. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat regulator type does it use?\u003c\/h4\u003e\n\u003cp\u003eIt uses an internal regulator. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat pulley and rotation details are listed?\u003c\/h4\u003e\n\u003cp\u003eThe alternator has a 6 groove pulley, a 64mm pulley outside diameter, and CW rotation. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat mounting measurements are provided?\u003c\/h4\u003e\n\u003cp\u003eThe listed mounting details are twin leg alternator mount, 82mm inside mounting legs, 163mm mount centres A, 10mm pivot hole diameter, and 8mm adjusting hole diameter. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat vehicles are mentioned in the application list?\u003c\/h4\u003e\n\u003cp\u003eThe supplied fitment references Audi A4 and Volkswagen Passat applications, with years shown in the list for Audi A4 from 1995 to 2001 and Volkswagen Passat from 1996 to 2005. For this listing, part number 1986A00783 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A4, AUDI A4 1995, AUDI A4 1996. These details should still be checked against the original unit before ordering.\u003c\/p\u003e","brand":"BOSCH","offers":[{"title":"Default Title","offer_id":56888702501024,"sku":"A5604531","price":1119.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5058\/0875\/files\/MqsJx52Xqe4g-wLMzRoapg.jpg?v=1775121613","url":"https:\/\/www.micksgonebush.com.au\/products\/a5604531-bosch-alternator-12v-90a","provider":"Micks Gone Bush","version":"1.0","type":"link"}