{"product_id":"cummins-5679573-crankcase-breather-isx15-x15-15l-diesel-engine","title":"Cummins 5679573 Crankcase Breather – ISX15 \/ X15 15L Diesel Engine","description":"\u003cp\u003eThe Cummins 5679573 is a genuine OEM crankcase breather designed for Cummins ISX15 and X15 15-liter diesel engines. This breather element manages crankcase pressure by filtering blow-by gases and separating oil mist before venting, protecting engine internals from contamination and maintaining proper crankcase vacuum for efficient operation.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Crankcase Breather\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eExcessive oil consumption or oil mist around the valve cover and breather housing\u003c\/li\u003e\n  \u003cli\u003eOil leaking from engine seals or gaskets due to elevated crankcase pressure\u003c\/li\u003e\n  \u003cli\u003eCheck engine light or fault codes related to crankcase ventilation pressure\u003c\/li\u003e\n  \u003cli\u003eVisible oil contamination in the air intake or turbo inlet piping\u003c\/li\u003e\n  \u003cli\u003eRough idle or reduced engine performance from restricted crankcase ventilation\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eCummins\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e5679573\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eCrankcase Breather\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eCummins ISX15, X15, QSX15\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e4.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew — Genuine OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following Cummins part numbers:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCummins:\u003c\/strong\u003e 5417366, 5417366CUM, 4974922, 3692325, 703286AT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis crankcase breather fits Cummins ISX15 and X15 15-liter diesel engines across multiple ECM calibrations, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eISX15 CM2250 SN\u003c\/li\u003e\n  \u003cli\u003eISX15 CM2350 X101\u003c\/li\u003e\n  \u003cli\u003eX15 CM2350 X114B, X116B, X123B, X129B\u003c\/li\u003e\n  \u003cli\u003eX15 CM2450 X124B, X134B\u003c\/li\u003e\n  \u003cli\u003eQSX15 CM2350 X106\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese engines are commonly found in:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFreightliner Cascadia, Coronado, and 122SD (2013+)\u003c\/li\u003e\n  \u003cli\u003eKenworth T680, T880, W900 (2013+)\u003c\/li\u003e\n  \u003cli\u003ePeterbilt 579, 567, 389 (2013+)\u003c\/li\u003e\n  \u003cli\u003eInternational LT, LoneStar, ProStar, HX (2013+)\u003c\/li\u003e\n  \u003cli\u003eWestern Star 4700, 4900, 5700 (2013+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your engine serial number and ECM calibration before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":50939290288413,"sku":"5679573","price":399.99,"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_b44a4877-f210-411d-95be-9b0cc4b59fb3.png?v=1787665363","url":"https:\/\/www.allprodiesel.net\/products\/cummins-5679573-crankcase-breather-isx15-x15-15l-diesel-engine","provider":"All Pro Truck Parts","version":"1.0","type":"link"}