DENSO IW24equivalent & cross reference
The DENSO IW24 spark plug is directly equivalent to NGK B8ES and NGK BR8EIX and NGK BR8ES, confirmed by shared applications in both manufacturers' official catalogues.
Equivalents
| Part | Shared applications | Agreement |
|---|---|---|
| NGK B8ES | 9 | 82% |
| NGK BR8EIX | 24 | 80% |
| NGK BR8ES | 14 | 82% |
Verified fitments for the DENSO IW24
Equivalence confirmed by 3 independent sources, last verified 22 July 2026. Always confirm fitment against your owner's manual.