{"product_id":"hiflofiltro-hf171c-4-chrome-standard-premium-oil-filter-4-pack","title":"HiFloFiltro HF171C-4 Chrome Standard Premium Oil Filter 4-Pack","description":"\u003cp\u003eIn this review the HiFloFiltro HF171C-4 chrome standard premium oil filter 4-pack is judged on build quality, fit and longevity for riders who want a reliable OEM replacement without overspending. The bottom line: it is best for motorcycle owners seeking a filter that matches or exceeds OE filtration life and uses high-grade components sourced from well-known manufacturers, offering a 28% longer service life in independent tests and consistent fit for applications calling for the HF171C-4 size.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended service life:\u003c\/strong\u003e Independent test results indicate about 28% longer service life than common OE brands, reducing the frequency of filter changes for routine maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-quality materials:\u003c\/strong\u003e Steel, glue and filter media are supplied by reputable manufacturers, improving durability and filtration reliability under normal riding conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigorous quality control:\u003c\/strong\u003e Each filter undergoes 16 individual quality checks and the factory process is audited by TUV SUD, which helps ensure consistent performance across the 4-pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM replacement:\u003c\/strong\u003e Designed to replace OEM part numbers including Harley 63731-99a, so it fits as a like-for-like service part where that size is specified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome finish option:\u003c\/strong\u003e The chrome exterior offers a clean, attractive look for exposed filter locations while maintaining functional construction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe HF171C-4 is aimed at motorcycle owners and home mechanics who want a cost-effective alternative to OEM filters without compromising on materials or documented longevity, especially when a direct replacement for Harley 63731-99a is required. Buyers who value manufacturer traceability and independent audits will appreciate the documented supply chain and TUV SUD verification.\u003c\/p\u003e\n\u003cp\u003eThis 4-pack is less suitable for buyers who need a paper-only disposable for a one-off emergency or who expect a specialized high-flow performance race filter; those users should look for filters explicitly marketed for motorsport or custom filtration requirements.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuild materials from recognized suppliers increase confidence in durability and filtration consistency.\u003c\/li\u003e\n\u003cli\u003eDocumented 28% longer service life versus common OE brands reduces maintenance frequency and cost over time.\u003c\/li\u003e\n\u003cli\u003eEasy installation and correct fitment; customers note the convenient 5\/8 nut on the end and compatibility with a standard socket wrench.\u003c\/li\u003e\n\u003cli\u003eChrome finish and well-pleated media provide a tidy appearance and effective filtering in one package.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome buyers may prefer a different exterior finish; opinions about the chrome look are mixed among users.\u003c\/li\u003e\n\u003cli\u003eNot marketed as a specialty high-flow racing filter, so users seeking that exact performance should consider dedicated race options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHiflofiltro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHF171C-4 (4-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces OEM\u003c\/td\u003e\n\u003ctd\u003eHarley 63731-99a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService life claim\u003c\/td\u003e\n\u003ctd\u003e28% longer than O.E. brands (independent test)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial suppliers\u003c\/td\u003e\n\u003ctd\u003eSteel: Toyota Tsusho \u0026amp; NKK Japan; Glue: Henkel Germany; Filter paper: Ahlstrom, Hollingsworth \u0026amp; Vose, Awa Japan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuality control\u003c\/td\u003e\n\u003ctd\u003e16 individual checks; manufacturing audited by TUV SUD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe HF171C-4 chrome standard premium oil filter 4-pack is a sensible purchase for riders seeking dependable, OEM-fit filtration with proven longevity and reputable component sourcing. It delivers strong value for routine motorcycle maintenance, especially where Harley 63731-99a compatibility is required, though those needing a specialty racing filter should consider dedicated alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this filter replace Harley 63731-99a?\u003c\/strong\u003e\u003cbr\u003eYes, the HF171C-4 is specified as a replacement for Harley 63731-99a and is intended for direct OEM-fit applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much longer does it last compared with OE filters?\u003c\/strong\u003e\u003cbr\u003eIndependent test results provided by the manufacturer indicate about a 28% longer service life compared with common O.E. brands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the materials traceable to known suppliers?\u003c\/strong\u003e\u003cbr\u003eYes, steel, glue and filter media are sourced from recognized suppliers in Japan, Germany, Finland and the USA and the production process is audited by TUV SUD.\u003c\/p\u003e","brand":"Hiflofiltro","offers":[{"title":"Default Title","offer_id":48746629267675,"sku":"B008BEM3FW","price":43.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/517grvKaKEL._AC_SL1000.jpg?v=1778795950","url":"https:\/\/gearmusthave.com\/products\/hiflofiltro-hf171c-4-chrome-standard-premium-oil-filter-4-pack","provider":"GearMustHave","version":"1.0","type":"link"}