{"id":9521567039729,"title":"Blue Bird \u0026 Holland Bus DEF Header 10056545 \u0026 more","handle":"bluebird-holland-bus-def-header-10056545","description":"\u003cp\u003eThis aftermarket DEF Header is a plug-and-play product, designed specifically for Blue Bird and Holland Bus engines in various 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\u003ePlease 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 40micron filter to keep your DEF system working as intended.\u003c\/p\u003e\n\u003ch4\u003eOEM Numbers\u003c\/h4\u003e\n\u003cp\u003e10056545, 5011806, 10035950, 10027844, 10019935\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"338\" height=\"17\" style=\"width: 72.6957%; height: 99.5939px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eIn-tank filter\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003e40\u003cspan\u003eµ (micron)\u003c\/span\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003e18 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.8125px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 40.8125px;\"\u003eTank interface\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 40.8125px;\"\u003e4.05 diameter bore seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\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":"2026-03-18T11:18:50-07:00","created_at":"2026-03-18T11:11:12-07:00","vendor":"DuraWRX","type":"DEF Header","tags":["Blue Bird","Holland Bus","ship-15-per"],"price":120000,"price_min":120000,"price_max":120000,"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":47938855469297,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"DWX 5310-6606718","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Blue Bird \u0026 Holland Bus DEF Header 10056545 \u0026 more","public_title":null,"options":["Default Title"],"price":120000,"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\/ASP5310-6606718_grey-iso_opt.webp?v=1773859641","\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-front_opt.webp?v=1773859641","\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-side_opt.webp?v=1773859641"],"featured_image":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-iso_opt.webp?v=1773859641","options":["Title"],"media":[{"alt":null,"id":38728102576369,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-iso_opt.webp?v=1773859641"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-iso_opt.webp?v=1773859641","width":1600},{"alt":null,"id":38728102609137,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-front_opt.webp?v=1773859641"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-front_opt.webp?v=1773859641","width":1600},{"alt":null,"id":38728102543601,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-side_opt.webp?v=1773859641"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.dpfpartsdirect.com\/cdn\/shop\/files\/ASP5310-6606718_grey-side_opt.webp?v=1773859641","width":1600}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThis aftermarket DEF Header is a plug-and-play product, designed specifically for Blue Bird and Holland Bus engines in various 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\u003ePlease 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 40micron filter to keep your DEF system working as intended.\u003c\/p\u003e\n\u003ch4\u003eOEM Numbers\u003c\/h4\u003e\n\u003cp\u003e10056545, 5011806, 10035950, 10027844, 10019935\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"338\" height=\"17\" style=\"width: 72.6957%; height: 99.5939px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eIn-tank filter\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003e40\u003cspan\u003eµ (micron)\u003c\/span\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003e18 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.8125px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 40.8125px;\"\u003eTank interface\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 40.8125px;\"\u003e4.05 diameter bore seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 49.8795%; height: 19.5938px;\"\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"}