{"product_id":"high-output-alternator-for-chevrolet-p30-1987-1988-7-4l","title":"High Output Alternator for Chevrolet P30 (1987-1988) 7.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Capacity 400-Amp Alternator for 1987-1988 Chevrolet P30 (P-Chassis)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The high-output 400-amp alternator delivers continuous, high-amperage electrical current to support heavy auxiliary equipment and prevent battery depletion on the 1987-1988 Chevrolet P30.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet P30 Electrical Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory charging systems installed on the 1987-1988 \u003cstrong\u003eP-Chassis\u003c\/strong\u003e with the \u003cstrong\u003eL19 7.4L\u003c\/strong\u003e big block were rated for minimal factory accessories, producing as little as 35 to 40 amps at idle. In fleet vehicles, step vans, and motorhomes, adding auxiliary electric fans, liftgates, high-output inverters, or commercial equipment quickly overwhelms the stock alternator. This overload induces severe heat soak, diode bridge failure, flickering lighting, and dead starting batteries when cycling loads at idle.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty unit features a high-density hairpin stator wound with heavy-gauge pure copper, delivering 200 amps at idle and 400 amps at 1,200 engine RPM. Premium sealed bearings and a dynamically balanced rotor mitigate high-RPM vibration and thermal breakdown. An integrated one-wire 15.1-volt regulator streamlines wiring directly to the battery, replacing factory units referencing OEM numbers \u003cstrong\u003e10463065\u003c\/strong\u003e and \u003cstrong\u003e1101263\u003c\/strong\u003e while maintaining correct bracket alignment.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Brand-New 400-Amp High Output Alternator (Part # 7918-5)\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: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\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;\"\u003e1987-1988 Chevrolet P30\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;\"\u003e7.4L L19 Big Block \/ P-Chassis\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;\"\u003e230 hp \/ 385 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;\"\u003e10463065, 1101263\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\u003e1987 Chevrolet P30 7.4L V8 Gas (Commercial Chassis \/ Forward Control)\u003c\/li\u003e\n  \u003cli\u003e1988 Chevrolet P30 7.4L V8 Gas (Commercial Chassis \/ Forward Control)\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 P-Chassis P30?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1987-1988 Chevrolet P30 equipped with the \u003cstrong\u003eL19 7.4L\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my charging wiring for this alternator?\u003c\/h4\u003e\n\u003cp\u003eYes, a dedicated 0-gauge all-copper charge cable and upgraded ground cables are strongly recommended to safely carry 400 amps without voltage drop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Commercial Standard\u003c\/h3\u003e\n\u003cp\u003eCommercial P-series vehicles demand uncompromising electrical stability under sustained industrial duty cycles, heavy towing, and severe thermal environments.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67901230153976,"sku":"DS-E7YU3SS6S","price":539.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-chevrolet-p30-1987-1988-7-4l-1.jpg?v=1793334625","url":"https:\/\/performancechiptuning.com\/de\/products\/high-output-alternator-for-chevrolet-p30-1987-1988-7-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}