Does the DENSO IU27A fit the Yamaha WR 250 R (2008–2018)?
Yes — the DENSO IU27A is a correct fitment for the Yamaha WR 250 R (2008–2018).
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 IU27A (price comparison)
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