DENSO IW20equivalent & cross reference
The DENSO IW20 spark plug is directly equivalent to NGK BP6ES and NGK BPR6EIX, confirmed by shared applications in both manufacturers' official catalogues.
Equivalents
| Part | Shared applications | Agreement |
|---|---|---|
| NGK BP6ES | 7 | 100% |
| NGK BPR6EIX | 10 | 77% |
Verified fitments for the DENSO IW20
Equivalence confirmed by 3 independent sources, last verified 22 July 2026. Always confirm fitment against your owner's manual.