Does the DENSO U24ESR-N fit the Yamaha WR 125 R (2009–2015)?
Yes — the DENSO U24ESR-N is a correct fitment for the Yamaha WR 125 R (2009–2015).
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.