NGK CR9EBequivalent & cross reference
The NGK CR9EB spark plug is directly equivalent to DENSO IU27, confirmed by shared applications in both manufacturers' official catalogues.
Equivalents
| Part | Shared applications | Agreement |
|---|---|---|
| DENSO IU27 | 6 | 50% |
Verified fitments for the NGK CR9EB
Equivalence confirmed by 3 independent sources, last verified 22 July 2026. Always confirm fitment against your owner's manual.