{"product_id":"harley-x440-mavrick-440-front-brake-caliper-boot-kit-hdh45221-aca-000","title":"Harley X440 \/ X440 OBDII \/ X440T \/ X440X \/ Mavrick 440 Front Brake Caliper Boot Kit OEM | HDH45221ACA000","description":"\u003cp\u003e\u003cstrong\u003eReplace worn, torn, hardened, or damaged front brake caliper rubber boots with this OEM boot kit for Harley X440 and Hero Mavrick 440 platform motorcycles.\u003c\/strong\u003e Part number \u003cstrong\u003eHDH45221-ACA-000\u003c\/strong\u003e is identified as \u003cstrong\u003eBOOT KIT\u003c\/strong\u003e in the front brake caliper group. In buyer language, this is best understood as a \u003cstrong\u003efront brake caliper boot kit\u003c\/strong\u003e, \u003cstrong\u003ecaliper rubber boot kit\u003c\/strong\u003e, or \u003cstrong\u003efront caliper boot set\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis kit is used in the \u003cstrong\u003efront brake caliper assembly\u003c\/strong\u003e. If the old rubber boots are torn, leaking, hardened, cracked, or no longer sealing the caliper correctly, replacing them is often part of a proper front caliper service or rebuild. Fresh boots help keep dirt, moisture, and contamination away from critical internal brake components.\u003c\/p\u003e\n\u003cp\u003eThis listing is written to be easier for customers to understand. Instead of only using the factory term \u003cstrong\u003eBOOT KIT\u003c\/strong\u003e, it also uses the common buyer names: \u003cstrong\u003efront brake caliper boot kit\u003c\/strong\u003e, \u003cstrong\u003ecaliper boot set\u003c\/strong\u003e, and \u003cstrong\u003ecaliper rubber boot kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility as requested:\u003c\/strong\u003e Harley \u003cstrong\u003eX440\u003c\/strong\u003e, \u003cstrong\u003eX440 OBDII\u003c\/strong\u003e, \u003cstrong\u003eX440T\u003c\/strong\u003e, \u003cstrong\u003eX440X\u003c\/strong\u003e, and Hero \u003cstrong\u003eMavrick 440\u003c\/strong\u003e. Before ordering, please match your old part, caliper design, and exact bike application. Brake parts should never be purchased only by guess or by symptom alone.\u003c\/p\u003e\n\u003cp\u003eThis listing is for the \u003cstrong\u003efront brake caliper boot kit only\u003c\/strong\u003e. Do not assume it includes caliper pistons, seals beyond the boot kit contents, brake pads, caliper bracket, complete caliper, hose, or mounting hardware unless separately stated.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM front brake caliper boot kit\u003c\/li\u003e\n\u003cli\u003ePart number: HDH45221-ACA-000\u003c\/li\u003e\n\u003cli\u003eFactory description: BOOT KIT\u003c\/li\u003e\n\u003cli\u003eBuyer language: front brake caliper boot kit \/ caliper rubber boot kit\u003c\/li\u003e\n\u003cli\u003eUsed in the front brake caliper assembly\u003c\/li\u003e\n\u003cli\u003eSuitable for front caliper repair or rebuild work\u003c\/li\u003e\n\u003cli\u003eUseful when old rubber boots are cracked, torn, hardened, or leaking\u003c\/li\u003e\n\u003cli\u003eHelps keep dirt and moisture away from caliper internals\u003c\/li\u003e\n\u003cli\u003eClear return-prevention copy for a technical brake component\u003c\/li\u003e\n\u003cli\u003eOEM-style fit for the listed applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel \/ Variant\u003c\/th\u003e\n\u003cth\u003eFitment Status\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eX440\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFront brake caliper boot kit application.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eX440 OBDII\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFront brake caliper boot kit application.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eX440T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFront brake caliper boot kit application.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eX440X\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eUse old part match before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHero\u003c\/td\u003e\n\u003ctd\u003eMavrick 440\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eUse old part match before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x HDH45221-ACA-000 – Front Brake Caliper Boot Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Maintenance Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis listing is for the \u003cstrong\u003eboot kit only\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIt is \u003cstrong\u003enot\u003c\/strong\u003e a complete front brake caliper rebuild kit unless additional parts are purchased separately.\u003c\/li\u003e\n\u003cli\u003ePlease match the old part and caliper design before ordering.\u003c\/li\u003e\n\u003cli\u003eInspect pistons, caliper bore condition, seals, pads, and brake fluid condition during rebuild.\u003c\/li\u003e\n\u003cli\u003eBrake work should be done carefully and correctly. If unsure, use a qualified mechanic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBefore You Order\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This is a \u003cstrong\u003efront brake caliper boot kit\u003c\/strong\u003e. It is not the full caliper, not the caliper bracket, and not the brake pad set.\u003c\/p\u003e\n\u003cp\u003eIf your brake issue is only weak braking, dragging, or noise, do not order this part only on assumption. Confirm that the rubber boots are actually damaged, leaking, cracked, or worn before purchase.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy From Under The Hood\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuyer-friendly naming for technical OEM brake parts\u003c\/li\u003e\n\u003cli\u003eClear explanation of what the boot kit actually does\u003c\/li\u003e\n\u003cli\u003eHelpful distinction between boot kit and complete caliper parts\u003c\/li\u003e\n\u003cli\u003eUseful for workshops and customers who need exact brake rebuild parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. What is HDH45221-ACA-000?\u003c\/strong\u003e\u003cbr\u003e It is the OEM \u003cstrong\u003efront brake caliper boot kit\u003c\/strong\u003e, listed by the factory as \u003cstrong\u003eBOOT KIT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Is this a complete front caliper?\u003c\/strong\u003e\u003cbr\u003e No. This is only the \u003cstrong\u003eboot kit\u003c\/strong\u003e used in the front brake caliper assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Are pistons included?\u003c\/strong\u003e\u003cbr\u003e Do not assume that. This listing is only for the boot kit unless other items are separately stated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Which bikes is this listed for?\u003c\/strong\u003e\u003cbr\u003e This listing is made for \u003cstrong\u003eHarley X440, X440 OBDII, X440T, X440X, and Hero Mavrick 440\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. When should this part be replaced?\u003c\/strong\u003e\u003cbr\u003e Replace it when caliper boots are torn, cracked, hardened, leaking, or damaged during brake service or caliper rebuild.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Is this front or rear brake related?\u003c\/strong\u003e\u003cbr\u003e This is for the \u003cstrong\u003efront brake caliper\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. What should be checked before ordering?\u003c\/strong\u003e\u003cbr\u003e Please confirm the exact bike application, old part match, and whether you need only the boot kit or a larger caliper repair kit.\u003c\/p\u003e","brand":"Harley-Davidson","offers":[{"title":"Default Title","offer_id":51201350009127,"sku":"HDH45221-ACA-000","price":36.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/5DDDDE8E-80A9-4742-9157-9EB74C86D4E1.jpg?v=1774517548","url":"https:\/\/underthehood.co.in\/products\/harley-x440-mavrick-440-front-brake-caliper-boot-kit-hdh45221-aca-000","provider":"UNDER THE HOOD","version":"1.0","type":"link"}