The Dinan Iridium Spark Plug uses an iridium electrode with a copper core to run cooler, resist preignition, and fire reliably at lower required voltage than a standard plug. Rated at heat range 9, it runs one step colder than OEM on N20, S55, N63 and S63, two steps colder on N55, and three steps colder on N54, making it suitable for tuned and most stock setups and a strong match for Dinan ignition coils. The projected ceramic insulator and optimized electrode design help ignite hard-to-burn fuels such as ethanol. Sold individually.
Specifications
| Type | Iridium spark plug |
| Heat Range | 9 (equivalent Bosch 3, Brisk 10, Champion 4, Denso 27, NGK 9) |
| Material | Iridium electrode with copper core |
| Insulator | Ceramic, projected design |
| Seat Type | Flat |
| Terminal Type | Nut |
| Dimensions | 12mm thread diameter x 26.5mm reach x 14mm Bi-Hex hex |
| Supplied Gap | 0.5mm |
| Install Torque | 17 Nm |
| Engines | N20 / N54 / N55 / S55 / N63 / S63 |
| Quantity | 1 (sold individually) |
| Part Number | D640-0002 |
Recently viewed
You may also like
