The Champion 30001788 is a genuine original equipment (OE) spark plug featuring a copper-cored nickel center electrode and a nickel 4-ground electrode (4-GE) configuration. Designed with an 18 mm shell thread and a 22.2 mm hex size (0.875 inches / 22.23 mm), this component includes a terminal thread nut and a suppressor/shielding designation of Sac-9. The plug has a 0.799-inch (20.99 mm) reach, a core nose length of 0.152 inches, and an overall length of 4.4 inches. It features a factory gap of 0.3 mm, with an available gap range of 0.0100 to 0.0130 inches (0.254 to 0.3302 mm). Engineered to withstand demanding operational conditions, the 30001788 has a maximum electrode operating temperature of 1700 F and sales part number 643.
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| Manufacturer | Champion |
|---|---|
| Country | |
| Part number | 30001788 |
| Inner Code | 407719 |
| Product type | Genuine Champion spark plug |
|---|---|
| Center Electrode | Nickel |
| Hex size [mm] | 22.2 |
| Alternative | Original / genuine (OE) |
| Gap [mm] | 0.3 |
| Sales part numbers | 643 |
| Material | center electrode - copper-cored nickel |
| Suppressor/Shielding | Sac-9 |
| Ground electrode | 4-GE, nickel |
| Shell thread | 18 mm |
| Terminal thread nut | terminal |
| Reach (inch) | 0.799 |
| Hex (inch) | 0.875 |
| Available gap (inch) | 0.0100 - 0.0130 |
| Reach (mm) | 20.99 |
| Hex (mm) | 22.23 |
| Available gap (mm) | 0.254 - 0.3302 |
| Core nose length (inch) | 0.152 |
| Electrode max. operating temperature (F) | 1700 F |
| Overall length | 4.4 in. |