NGK C7HSA Spark Plug – Stock No. 4629
The NGK C7HSA is a reliable, standard-type spark plug for many small engines and scooters. It uses a copper core and a nickel alloy tip for steady ignition and good heat control. This helps cold starts, smooth running, and consistent performance in daily use.
It is a non-resistor plug. It suits engines that specify a non-resistor type and a 10 mm thread with 12.7 mm reach. Always check your owner’s manual or use the site’s vehicle lookup to confirm fitment.
- Stable spark and dependable cold starts
- Durable nickel ground and centre electrodes
- Correct heat range for many small-capacity engines
| Part Number | C7HSA |
| NGK Stock Number | 4629 |
| GTIN | 087295146293 |
| Category | 686 – Spark Plug |
| Thread Diameter | 10 mm |
| Thread Pitch | 1.0 mm |
| Reach (thread length) | 12.7 mm |
| Seat Type | Gasket |
| Hex Size | 16 mm |
| Heat Range | 7 (NGK scale) |
| Resistor | No |
| Centre Electrode | Copper core with nickel alloy tip |
| Ground Electrode | Standard J-type, nickel alloy |
| Projected Tip | No |
| Factory Gap | 0.6 mm |
| Terminal | Solid terminal |
| Recommended Tightening Torque | 10-12 Nm (gasket seat, 10 mm thread) |
Fitment Guidance
Common in many small-capacity motorcycles, scooters, mopeds, and general-purpose small engines that specify NGK C7HSA. Use the vehicle lookup or check the Vehicle Fitment tab to confirm.
The price displayed is for a single plug, please add the desired amount to your basket.


