{"product_id":"oro2u-42-4749-a3-97d63a68","title":"Dirt Racing Rear Brake Master Cylinder Honda 2002-2022 CRF250R CRF450R 2004-2020 CRF450X CRF250X","description":"\u003cp\u003eDirt Racing Rear Brake Master Cylinder Honda 2002-2022 CRF250R CRF450R 2004-2020 CRF450X CRF250X. Find the product specifications and compatibility information below.\u003c\/p\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct: Rear Brake Master Cylinder Honda 2002-2022 CRF250R CRF450R 2004-2020 CRF450X CRF250X\u003c\/li\u003e\n\u003cli\u003ePart number: 42-4749.A3\u003c\/li\u003e\n\u003cli\u003eBrand: Dirt Racing\u003c\/li\u003e\n\u003cli\u003eA rear brake master cylinder assembly designed as a direct OEM-type replacement. Built to precise standards with M10 banjo connection and 50 mm mounting hole spacing, it provides reliable braking performance for the specified models.\u003c\/li\u003e\n\u003cli\u003eUnmatched reliability and performance from high-tech materials\u003c\/li\u003e\n\u003cli\u003eManufactured to exacting standards so the engine can be rebuilt with total confidence\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM quality\u003c\/li\u003e\n\u003cli\u003eDirect OEM replacement\u003c\/li\u003e\n\u003cli\u003eHigh-quality replacement part and carries a satisfaction guarantee\u003c\/li\u003e\n\u003cli\u003eEasy to install; if unsure, please use a professional\u003c\/li\u003e\n\u003cli\u003eMounting hole spacing: 50 mm\u003c\/li\u003e\n\u003cli\u003eOverall length: 175 mm\u003c\/li\u003e\n\u003cli\u003eColour: Silver\u003c\/li\u003e\n\u003cli\u003eBanjo bolt size: M10\u003c\/li\u003e\n\u003cli\u003ePlacement: Rear\u003c\/li\u003e\n\u003cli\u003eCross-Reference OEM Part Numbers\u003c\/li\u003e\n\u003cli\u003e43500-MEN-305\u003c\/li\u003e\n\u003cli\u003e43500-KZ4-J43\u003c\/li\u003e\n\u003cli\u003e43500-KZ4-J41\u003c\/li\u003e\n\u003cli\u003e43500-KZ4-J42\u003c\/li\u003e\n\u003cli\u003ePISTON SET, MASTER CYLINDER 43520-KZ4-J42\u003c\/li\u003e\n\u003cli\u003ePISTON SET, MASTER CYLINDER 43520-KZ4-J43\u003c\/li\u003e\n\u003cli\u003eJOINT, BRAKE ROD 46504-KZ4-J41\u003c\/li\u003e\n\u003cli\u003eROD, PUSH 43530-KZ4-J41\u003c\/li\u003e\n\u003cli\u003eDIAPHRAGM 43522-KZ4-J41\u003c\/li\u003e\n\u003cli\u003eCAP, MASTER CYLINDER 43513-KZ4-J41\u003c\/li\u003e\n\u003cli\u003ePLATE, DIAPHRAGM 43521-KZ4-J41\u003c\/li\u003e\n\u003cli\u003eBOLT-WASHER (4X16) 93401-04016-00\u003c\/li\u003e\n\u003cli\u003eNUT, HEX. (6MM) 94002-06000-0S\u003c\/li\u003e\n\u003cli\u003eASSEMBLIES WHERE 43500-MEN-305 IS USED\u003c\/li\u003e\n\u003cli\u003e2002 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2002 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2002 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2003 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2003 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2003 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF250R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2004 CRF450R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250R A\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250X A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF250X AC\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF450R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2005 CRF450R A\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250R A\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250X A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250X A\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF250X AC\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2006 CRF450R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CR125R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CR250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X A\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X AC\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF250X AC\/B - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2007 CRF450R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250R 2A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250R 2A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250X A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF250X AC\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF450R 2A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF450R 2A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2008 CRF450R A\/A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2009 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2009 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2009 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2010 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2010 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2011 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2011 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2012 CRF250R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2012 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2012 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2012 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2013 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2013 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2013 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2013 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2014 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2014 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2015 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2015 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2015 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2015 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2016 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2016 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2016 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2016 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2017 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2017 CRF250X A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2017 CRF250X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2017 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2017 CRF450RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2018 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2018 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2018 CRF450RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2009 CRF450R A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF250F A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF250F AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF250RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF450L AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF450RWE AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF450RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2019 CRF450X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF250F A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF250F AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF250RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF450L AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF450RWE AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF450RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2020 CRF450X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF250F A - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF250F AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF250R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF250RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF450RL AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF450RWE AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF450RX AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2021 CRF450X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2022 CRF450R AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2022 CRF450RL AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2022 CRF450RWE AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003cli\u003e2022 CRF450X AC - REAR BRAKE MASTER CYLINDER\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eNo separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above before ordering.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eWhy buy from FDY Performance?\u003c\/h3\u003e\u003cp\u003eFDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.\u003c\/p\u003e\u003ch3\u003eNeed help choosing the right part?\u003c\/h3\u003e\u003cp\u003eContact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCall: \u003ca href=\"tel:+447765534854\"\u003e07765 534854\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmail: \u003ca href=\"mailto:fdy@fdyperformance.com\"\u003efdy@fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWebsite: \u003ca href=\"https:\/\/www.fdyperformance.com\"\u003ewww.fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dirt Racing","offers":[{"title":"Default Title","offer_id":59675507097948,"sku":"42-4749.A3","price":40.94,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/6982\/0252\/files\/screenshot-2025-10-08-152918.jpg?v=1793205431","url":"https:\/\/fdyperformance.com\/products\/oro2u-42-4749-a3-97d63a68","provider":"FDY performance Ltd","version":"1.0","type":"link"}