A Champion D9 (CCH509) short reach 1/2" by 18mm thread spark plug suitable for use in Ruston Hornsby AP engines.
Replaces the Champion 17 and UK10 plugs.
This is an 18mm thread plug in a medium heat range, you may need to experiment with other heat ranges, D6 being the next grade colder so we have made both available.
| Part Number | D9 |
| Barcode | |
| 5053557018726 | |
| Manufacturer | Champion |
| Reach | 12.7mm (1/2") |
| Terminal Type | UNC Thread |
| Diameter | 18mm |
| Seal Type | Gasket Seat |
| Electrode Material | Copper Core |
| Projection Type | Non Projected |
| Pack Size | 1 Single Unit |
| Resistor | No |
| Tip Configuration | Single Electrode |
| Applications | Industrial |
| Hex Spanner Size | 22.2mm (7/8") |
| StockNumber2 | CHA-509 |
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