{"product_id":"pai-etc-8256-turbocharger-replaces-mack-631gc5173m","title":"PAI ETC-8256 Turbocharger (S400) │ Replaces Mack 631GC5173M – Mack E7 12.0L, 427–460 HP","description":"\u003cp\u003eThe \u003cstrong\u003ePAI ETC-8256\u003c\/strong\u003e is a new turbocharger for \u003cstrong\u003eMack E7 12.0L engines in the 427–460 HP ratings\u003c\/strong\u003e. It directly replaces Mack OEM number \u003cstrong\u003e631GC5173M\u003c\/strong\u003e and its variants, corresponding to Schwitzer (BorgWarner) reference \u003cstrong\u003e174828\u003c\/strong\u003e in the S400 turbo family. Built by PAI Industries, an ISO 9001-certified U.S. manufacturer, this complete new assembly carries PAI's 2-year unlimited-mileage warranty with no core charge — a straightforward way to keep higher-horsepower E7 vocational and on-highway trucks working.\u003c\/p\u003e\n\u003ch2\u003eSymptoms of a Failing Turbocharger\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLow boost pressure and a noticeable loss of power at the top ratings\u003c\/li\u003e\n\u003cli\u003eHeavy black smoke when accelerating or pulling grades\u003c\/li\u003e\n\u003cli\u003eBlue smoke at idle or startup from oil passing worn turbo seals\u003c\/li\u003e\n\u003cli\u003eOil residue in the compressor outlet, boost tubes, or intercooler\u003c\/li\u003e\n\u003cli\u003eWhining, howling, or grinding noises that change with engine speed\u003c\/li\u003e\n\u003cli\u003eRising exhaust gas temperatures and declining fuel economy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003ePAI Industries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eETC-8256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTurbo Family\u003c\/th\u003e\n\u003ctd\u003eS400 (Schwitzer 174828)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReplaces\u003c\/th\u003e\n\u003ctd\u003eMack 631GC5173M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Application\u003c\/th\u003e\n\u003ctd\u003eMack E7 12.0L, 427–460 HP ratings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew aftermarket (complete assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCore Charge\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2-Year unlimited mileage (PAI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMack: 631GC5173M, 631GC5173MX, 631GC5173AM, 631GC5173AMX\u003c\/li\u003e\n\u003cli\u003eMack: 7536-174828 (Schwitzer 174828)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMack E7 \/ E-TECH 12.0L engines, 427–460 HP ratings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eVerify part number and engine application before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"PAI Industries","offers":[{"title":"Default Title","offer_id":50674758615325,"sku":"ETC-8256","price":2657.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/all-pro-image-coming-soon-light-2048_5683f709-d9fd-403a-9635-e161189fecea.png?v=1787665259","url":"https:\/\/www.allprodiesel.net\/products\/pai-etc-8256-turbocharger-replaces-mack-631gc5173m","provider":"All Pro Truck Parts","version":"1.0","type":"link"}