Includes a solid brass adapter and release valve, steel housing (100 psi) gauge, stainless steel springs, Viton O-rings, O-ring lubricant and nylon storage pouchQuickly diagnoses loss of power, poor fuel economy and hesitation and stallingReleases fuel through drain line with the push of a buttonProvides simple, fast and accurate fuel pressure checksMade in the USAFits '01-'25 Harley Davidson models with Delphi fuel injection (except for V-Rod).