NGK DR9EAequivalent & cross reference
The NGK DR9EA spark plug is directly equivalent to DENSO X27ESR-U and DENSO IX27, confirmed by shared applications in both manufacturers' official catalogues.
Equivalents
| Part | Shared applications | Agreement |
|---|---|---|
| DENSO X27ESR-U | 10 | 91% |
| DENSO IX27 | 10 | 91% |
Verified fitments for the NGK DR9EA
Equivalence confirmed by 3 independent sources, last verified 22 July 2026. Always confirm fitment against your owner's manual.