NGK BPR7EIXequivalent & cross reference

The NGK BPR7EIX spark plug is directly equivalent to DENSO W22EPR-U and DENSO IW22, confirmed by shared applications in both manufacturers' official catalogues.

Equivalents

Part	Shared applications	Agreement
DENSO W22EPR-U	18	82%
DENSO IW22	18	82%

Verified fitments for the NGK BPR7EIX

BMW R 100 RS (1976–1980)
BMW R65 LS (1981–1985)
Yamaha BT 1100 Bulldog (2002–2006)
Yamaha XJ 650 (1980–1984)
Yamaha XJ 750 (1982–1984)
Yamaha XJ 750 Seca (1981–1983)
Yamaha XS 400 (1979–1979)
Yamaha XS 850 (1980–1980)
Yamaha XV 1100 Virago (1989–1993)
Yamaha XV 750 Virago (1992–1993)

Equivalence confirmed by 3 independent sources, last verified 22 July 2026. Always confirm fitment against your owner's manual.