NGK ZFR5F Spark Plug – 5165
A dependable NGK spark plug for everyday driving and light performance use. It provides consistent ignition, smooth idle, and reliable cold starts. The resistor design helps reduce electrical noise that can affect the radio or ECU. Heat range 5 suits many standard petrol engines. Always set the gap and torque to the vehicle maker’s spec.
- Clean, reliable spark for smoother running and better starting
- Copper core and nickel electrodes for stable heat control
- Resistor type to reduce electrical interference
| Part number | NGK ZFR5F |
| NGK stock number | 5165 |
| GTIN | 087295151655 |
| Category | 686 – Spark Plug |
| Thread size | M14 x 1.25 |
| Reach (thread length) | 19 mm |
| Hex size | 16 mm |
| Seat type | Gasket |
| Heat range | 5 (NGK scale) |
| Resistor | Yes |
| Projected tip | Yes |
| Centre electrode | Nickel alloy with copper core |
| Ground electrode | Nickel |
| Factory gap | 0.8 mm (check and set to OE spec) |
| Terminal type | Solid SAE nut |
| Typical torque (14 mm gasket seat) | 18-25 Nm (use manufacturer spec) |
Fitment guidance
Commonly specified for various petrol engines that use a 14 mm thread, 19 mm reach, 16 mm hex, gasket seat plug and NGK heat range 5. Often seen in older Honda applications where ZFR5F is listed by the manufacturer. Use the site’s 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.


