NGK LFR5A-11 Spark Plug (Stock No. 6376)
The NGK LFR5A-11 is a dependable, OE-quality spark plug for everyday driving and light performance use. It delivers a clean spark for reliable starts, smooth idle, and consistent power. A resistor inside helps reduce electrical noise that can affect the radio or ECU.
Built with a copper core and durable nickel alloy electrodes, it offers stable heat control and good wear life. The factory-set 1.1 mm gap suits many standard petrol engines.
Use our vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
Why choose this plug
- Reliable ignition and smooth running
- Resistor design to reduce electrical interference
- Proven NGK quality for long service life
| Part Category | 686 – Spark Plug |
| NGK Part Number | LFR5A-11 |
| NGK Stock Number | 6376 |
| GTIN | 087295163764 |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Gasket |
| Heat Range | 5 (NGK scale) |
| Spark Gap | 1.1 mm (factory set) |
| Electrode Material | Nickel alloy with copper core |
| Resistor | Yes |
| Ground Electrodes | 1 |
| Typical Torque | 18-25 Nm (14 mm gasket seat, aluminium head) |
| Tightening Angle (new plug) | 1/2 – 2/3 turn after finger tight |
Note: Always check your engine’s service manual for the correct heat range, gap, and torque.
The price displayed is for a single plug, please add the desired amount to your basket.


