{"product_id":"pai-831122oem-turbocharger-replaces-mack-volvo-85136172","title":"PAI 831122OEM VGT Turbocharger │ Replaces Mack\/Volvo 85136172 – Mack MP8 \/ Volvo D13","description":"\u003cp\u003eThe \u003cstrong\u003ePAI 831122OEM turbocharger\u003c\/strong\u003e is a new variable-geometry (VGT) turbo for \u003cstrong\u003eMack MP8\u003c\/strong\u003e and \u003cstrong\u003eVolvo D13\u003c\/strong\u003e 12.8L engines, replacing Volvo\/Mack OEM number \u003cstrong\u003e85136172\u003c\/strong\u003e (also listed as 85151101). It serves the factory Holset VGT position used on MP8\/D13 trucks, where the sliding-nozzle turbo controls boost, EGR drive pressure, and engine-brake performance.\u003c\/p\u003e\n\u003ch2\u003eSymptoms of a Failing VGT Turbocharger\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLow boost and lazy throttle response, especially climbing grades under load\u003c\/li\u003e\n\u003cli\u003eBlack smoke under acceleration; blue smoke or oil use from worn turbo seals\u003c\/li\u003e\n\u003cli\u003eTurbocharger position\/actuator fault codes and engine derates\u003c\/li\u003e\n\u003cli\u003eReduced engine brake power — the VGT provides braking backpressure on MP8\/D13\u003c\/li\u003e\n\u003cli\u003eTurbo whine, grinding, or shaft-play rattle\u003c\/li\u003e\n\u003cli\u003eOil pooling in the intercooler or intake plumbing\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 (part no. 831122OEM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e831122OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eType\u003c\/th\u003e\n\u003ctd\u003eVariable-geometry (VGT) turbocharger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePrimary OEM Reference\u003c\/th\u003e\n\u003ctd\u003eMack\/Volvo 85136172\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Application\u003c\/th\u003e\n\u003ctd\u003eMack MP8 \/ Volvo D13, 12.8L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCore Charge\u003c\/th\u003e\n\u003ctd\u003eNone — new unit, no core return required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eMack \/ Volvo (shared OEM numbers): \u003cstrong\u003e85136172\u003c\/strong\u003e, 85151101, 85116645\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo D13 12.8L engines (Volvo VNL, VNM, VHD chassis)\u003c\/li\u003e\n\u003cli\u003eMack MP8 12.8L engines (Pinnacle, Granite, and related chassis)\u003c\/li\u003e\n\u003cli\u003eFits engines whose original turbo carries one of the OEM numbers above — check the tag on your old turbo\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":50674758943005,"sku":"831122OEM","price":6459.35,"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_537ead7e-1515-4ead-be8e-11501c0aa442.png?v=1787665286","url":"https:\/\/www.allprodiesel.net\/products\/pai-831122oem-turbocharger-replaces-mack-volvo-85136172","provider":"All Pro Truck Parts","version":"1.0","type":"link"}