Does the NGK DCR9EIX fit the Ducati Monster S4 (2001–2002)?
Yes — the NGK DCR9EIX is a correct fitment for the Ducati Monster S4 (2001–2002).
Last verified: 22 July 2026 against 2 independent sources (NGK UK Motorcycle Catalogue 2022 (official PDF), Sportsbikeshop fitment catalogue).
Brakes are safety-critical. Always confirm fitment against your owner's manual before purchase and installation.