Denso S-31A Spark Plug
Specs, cross-brand equivalents, vehicle fitment, and live prices for the Denso S-31A.
The Denso S-31A is a 14mm thread, 21.5mm reach, copper electrode spark plug. These specifications are decoded from the Denso part number and determine which plugs it safely cross-references to — a valid equivalent must match the thread, reach, seat and heat range.
Cross-reference equivalents
| Brand | Part | Metal | Buy |
|---|---|---|---|
| Denso | IRE01-27 | Iridium | Buy |
| NGK | BUR9EQ | Copper | Buy |
| Autolite | 2684 | Copper | Buy |
| Denso | 067700-4830 | — | Buy |
| Denso | 267700-1520 | — | Buy |
| Denso | 3111 | — | Buy |
| NGK | 5483 | — | Buy |
| NGK | R6725-9 | Copper | Buy |
| NGK | R6794-9 | Copper | Buy |
| NGK | R7420T-9 | Copper | Buy |
| F7RQY | — | Buy | |
| F7RQYP | — | Buy | |
| F8RQYP | — | Buy | |
| F9RQY | — | Buy | |
| F9RQYP | — | Buy |
Vehicles the S-31A fits
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