{"id":9513201860849,"title":"Detroit DEF Header for Freightliner and Western Star 04-31677-000","handle":"detroit-def-header-for-freightliner-04-31677-000","description":"\u003cp\u003eThis aftermarket DEF Header is a plug-and-play product, designed specifically for Detroit engines in various Freightliner and Western Star applications. This DuraWRX DEF header delivers OEM-equivalent performance at a fraction of dealer pricing. Built to withstand demanding operations and backed by a 2-year, 40,000-mile, 1,200-hour warranty (whichever comes first) this header will get the job done.\u003c\/p\u003e\n\u003cp\u003eThis unit specifically is designed for Detroit 13 and 23 gal diesel exhaust fluid tanks in Freightliner applications. Please reference the OEM numbers below to confirm proper fitment. This complete multi function head unit (MFHU) contains various sensors and electronics as well as a 70micron filter to keep your DEF system working as intended.\u003c\/p\u003e\n\u003ch4\u003eOEM Numbers\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e04-31677-000, 04-30798-000, 04-27881-000, 04-31893-000\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"338\" height=\"17\" style=\"width: 73.0435%; height: 103px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003eIn-tank filter\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003e70\u003cspan\u003eµ (micron)\u003c\/span\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003e20 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eTank interface\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eSAE J2587 flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eTank capacity\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003e13\/23 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eNew, aftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eDuraWRX products come with a manufacturer provided warranty under the following terms provided the product is registered at time of installation:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGoods purchased or supplied under this Agreement are governed by the express written manufacturers’ warranty which is two (2) years from the date of purchase, 40,000 miles or 1200 hours, whichever comes first. Customer must request a return label from Durawrx, and return the Goods using the return label.  Once inspected by Durawrx and a warranty claim is approved, Durawrx shall issue a credit or refund to Customer. No other warranty for Goods supplied under this Agreement is provided.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2026-03-13T16:49:38-07:00","created_at":"2026-03-13T16:37:32-07:00","vendor":"DuraWRX","type":"DEF Header","tags":["Detroit-Diesel","ship-15-per"],"price":125000,"price_min":125000,"price_max":125000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":47901782049009,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"DWX FL-2325","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Detroit DEF Header for Freightliner and Western Star 04-31677-000","public_title":null,"options":["Default Title"],"price":125000,"weight":0,"compare_at_price":null,"inventory_quantity":2,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_iso_opt.webp?v=1773692197","\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_side_opt.webp?v=1773692197","\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_front_opt.webp?v=1773692197"],"featured_image":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_iso_opt.webp?v=1773692197","options":["Title"],"media":[{"alt":null,"id":38708496367857,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_iso_opt.webp?v=1773692197"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_iso_opt.webp?v=1773692197","width":1600},{"alt":null,"id":38708496302321,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_side_opt.webp?v=1773692197"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_side_opt.webp?v=1773692197","width":1600},{"alt":null,"id":38708496335089,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_front_opt.webp?v=1773692197"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASPFL-2325_front_opt.webp?v=1773692197","width":1600}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThis aftermarket DEF Header is a plug-and-play product, designed specifically for Detroit engines in various Freightliner and Western Star applications. This DuraWRX DEF header delivers OEM-equivalent performance at a fraction of dealer pricing. Built to withstand demanding operations and backed by a 2-year, 40,000-mile, 1,200-hour warranty (whichever comes first) this header will get the job done.\u003c\/p\u003e\n\u003cp\u003eThis unit specifically is designed for Detroit 13 and 23 gal diesel exhaust fluid tanks in Freightliner applications. Please reference the OEM numbers below to confirm proper fitment. This complete multi function head unit (MFHU) contains various sensors and electronics as well as a 70micron filter to keep your DEF system working as intended.\u003c\/p\u003e\n\u003ch4\u003eOEM Numbers\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e04-31677-000, 04-30798-000, 04-27881-000, 04-31893-000\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"338\" height=\"17\" style=\"width: 73.0435%; height: 103px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003eIn-tank filter\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003e70\u003cspan\u003eµ (micron)\u003c\/span\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%; height: 19.5938px;\"\u003e20 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eTank interface\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eSAE J2587 flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eTank capacity\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003e13\/23 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 49.7011%;\"\u003eNew, aftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eDuraWRX products come with a manufacturer provided warranty under the following terms provided the product is registered at time of installation:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGoods purchased or supplied under this Agreement are governed by the express written manufacturers’ warranty which is two (2) years from the date of purchase, 40,000 miles or 1200 hours, whichever comes first. Customer must request a return label from Durawrx, and return the Goods using the return label.  Once inspected by Durawrx and a warranty claim is approved, Durawrx shall issue a credit or refund to Customer. No other warranty for Goods supplied under this Agreement is provided.\u003c\/em\u003e\u003c\/p\u003e"}