{"product_id":"alternator-for-porsche-911-1978-1983-3-0l","title":"Alternator for Porsche 911 (1978-1983) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit 75-Amp Alternator for 1978-1983 Porsche 911 (G-Series)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 75-amp direct-fit alternator replaces failing factory charging units on the 1978-1983 911 SC to maintain consistent electrical system voltage and protect critical ignition circuits from voltage drop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Porsche 911 Charging Vulnerability\u003c\/h3\u003e\n\u003cp\u003ePositioned inside the cooling fan shroud of the air-cooled \u003cstrong\u003eType 930\u003c\/strong\u003e engine, the factory charging system operates under severe thermal conditions. Over decades of operation, extreme heat soak inside the shroud breaks down the rotor insulation, burns out diode rectifiers, and wears down carbon brush contacts. This thermal degradation leads to erratic current output, battery drain, dimming instrumentation at idle, and inconsistent voltage delivery to the K-Jetronic (CIS) fuel injection and CDI ignition coils.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis remanufactured \u003cstrong\u003eParis-Rhone\u003c\/strong\u003e style alternator is engineered specifically for the \u003cstrong\u003eG-Series\u003c\/strong\u003e platform, featuring an integrated internal voltage regulator that streamlines charging efficiency. Built with premium heavy-duty copper stator windings and bench-tested diode packs, this unit guarantees a continuous \u003cstrong\u003e75-amp\u003c\/strong\u003e output to stabilize operating voltage. The cast housing precisely matches factory radial dimensions, securing seamlessly inside the magnesium fan ring assembly while retaining correct factory V-belt pulley alignment and terminal connections without wire splicing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Remanufactured 75-Amp Alternator with Internal Regulator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100% style=\" border-collapse: collapse border: solid font-size: min-width:\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1978-1983 Porsche 911\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eType 930 (3.0L Flat-6) \/ G-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e180 hp \/ 175 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e911-603-120-04\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1978-1983 Porsche 911 SC 3.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the G-Series 911?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1978-1983 Porsche 911 equipped with the \u003cstrong\u003eType 930\u003c\/strong\u003e 3.0L engine. It is not engineered for later 3.2L Carrera models or early 2.7L vehicles equipped with separate external firewall regulators.\u003c\/p\u003e\n\n\u003ch4\u003eShould I test the battery and cables before installing?\u003c\/h4\u003e\n\u003cp\u003eYes, ensure the battery is fully bench-charged and verify ground strap integrity before start-up so the fresh diode pack is not damaged by high-resistance circuits.\u003c\/p\u003e\n\n\u003ch3\u003eThe Porsche Precision Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned to satisfy stringent European automotive electrical standards, this unit provides rock-solid voltage regulation without introducing line noise or false indicator lights, safeguarding delicate vintage German electronic components.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67621548687608,"sku":"DS-EEF0UQDNY","price":438.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/alternator-for-porsche-911-1978-1983-3-0l-1.jpg?v=1791664547","url":"https:\/\/performancechiptuning.com\/de\/products\/alternator-for-porsche-911-1978-1983-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}