{"product_id":"automann-820-b75320p-bellows-kit-for-kenworth-and-peterbilt-replaces-paccar-m66-7091-0320","title":"Automann 820.B75320P Exhaust Bellows Kit – Kenworth \u0026 Peterbilt","description":"\u003cp\u003eThe Automann 820.B75320P is a premium aftermarket exhaust bellows kit designed for Kenworth and Peterbilt trucks equipped with Cummins ISX 11.9L, ISX 15.0L, and PACCAR PX-9 engines. This complete kit includes the bellows assembly along with all necessary clamps and gaskets for a straightforward installation. Built with a three-layer 304 stainless steel bellows core and 409 stainless steel welded end fittings, this kit is engineered for long-lasting, leak-proof exhaust flow.\u003c\/p\u003e\n\u003ch2\u003eSigns You Need a New Exhaust Bellows\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVisible cracks, holes, or rust-through on the bellows flex section\u003c\/li\u003e\n\u003cli\u003eExhaust soot staining around the bellows or nearby clamp joints\u003c\/li\u003e\n\u003cli\u003eLouder than normal exhaust noise, especially at idle or under load\u003c\/li\u003e\n\u003cli\u003eExhaust odor in or around the cab\u003c\/li\u003e\n\u003cli\u003eFailed emissions inspection due to exhaust leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAutomann\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e820.B75320P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eExhaust Bellows Kit (Premium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInlet Diameter\u003c\/th\u003e\n\u003ctd\u003e3.500\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutlet Diameter\u003c\/th\u003e\n\u003ctd\u003e3.500\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e12.540\" – 13.050\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBellows Material\u003c\/th\u003e\n\u003ctd\u003eThree-layer 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEnd Fittings\u003c\/th\u003e\n\u003ctd\u003e409 stainless steel, welded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eKit Includes\u003c\/th\u003e\n\u003ctd\u003eBellows assembly, clamps, and gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eCummins ISX 11.9L, ISX 15.0L; PACCAR PX-9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e1 year \/ 100,000 miles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis bellows kit replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaccar:\u003c\/strong\u003e M66-7091-0320, M6670910320\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaccar Parts:\u003c\/strong\u003e EWPB11861\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeterbilt:\u003c\/strong\u003e M66-7091-0320KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNewstar:\u003c\/strong\u003e PTR-M66-7091-0320KIT, S-28647\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis exhaust bellows kit fits Kenworth and Peterbilt trucks with Cummins ISX and PACCAR PX-9 engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKenworth T660 (2007–2019 with Cummins ISX)\u003c\/li\u003e\n\u003cli\u003eKenworth T680 (2013–2024 with Cummins ISX or PACCAR PX-9)\u003c\/li\u003e\n\u003cli\u003eKenworth T800 (2007–2024 with Cummins ISX or PACCAR PX-9)\u003c\/li\u003e\n\u003cli\u003eKenworth T880 (2014–2024 with Cummins ISX or PACCAR PX-9)\u003c\/li\u003e\n\u003cli\u003eKenworth W900 (2007–2024 with Cummins ISX)\u003c\/li\u003e\n\u003cli\u003eKenworth W990 (2019–2024 with Cummins ISX or PACCAR PX-9)\u003c\/li\u003e\n\u003cli\u003ePeterbilt models (2007–2017 with Cummins ISX 11.9L or 15.0L; 2014–2016 with PACCAR PX-9)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eVerify your engine serial number and exhaust configuration before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Automann","offers":[{"title":"Default Title","offer_id":49475424977181,"sku":"820.B75320P","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/Screenshot2024-12-18at1.19.50PM.png?v=1734549628","url":"https:\/\/www.allprodiesel.net\/products\/automann-820-b75320p-bellows-kit-for-kenworth-and-peterbilt-replaces-paccar-m66-7091-0320","provider":"All Pro Truck Parts","version":"1.0","type":"link"}