Does the DENSO X24EPR-U9 fit the Honda FX 650 Vigor (1999–2003)?
Yes — the DENSO X24EPR-U9 is a correct fitment for the Honda FX 650 Vigor (1999–2003).
Last verified: 22 July 2026 against 2 independent sources (Cross-brand plug correspondence (NGK + Denso catalogues), Denso Motorcycle Spark Plug Catalogue (official PDF)).
Brakes are safety-critical. Always confirm fitment against your owner's manual before purchase and installation.
Where to buy the DENSO X24EPR-U9 (price comparison)
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