NGK ZFR6S-Q Spark Plug – Stock No. 6449
The NGK ZFR6S-Q is a reliable, resistor-type spark plug designed for consistent ignition and smooth running. It offers stable cold starts, clean combustion, and dependable performance in everyday driving and light performance use.
A resistor plug helps cut electrical noise that can affect the radio and ECU. Heat range 6 suits many modern petrol engines that call for this spec, keeping the tip at the right temperature to prevent fouling and reduce knock.
Use this plug where the vehicle manufacturer specifies NGK ZFR6S-Q. Always confirm fitment with our vehicle lookup or the Vehicle Fitment tab.
- Stable spark for smooth idle and throttle response
- Resistor design reduces electrical interference
- Durable nickel alloy centre electrode for long service life
| Part Number | ZFR6S-Q |
| NGK Stock Number | 6449 |
| GTIN | 087295164495 |
| Category | 686 – Spark Plug |
| Plug Type | Standard nickel alloy |
| Resistor | Yes (R) |
| Heat Range (NGK) | 6 |
| Centre Electrode | Nickel alloy core |
| Ground Electrode | Conventional ground strap |
| Pre-set Gap | Factory gapped – set to vehicle specification |
| Torque | Torque to the vehicle manufacturer’s spec |
| Service Interval | Follow the vehicle maintenance schedule |
Fitment Guidance
This plug suits petrol engines that specifically require NGK ZFR6S-Q. It is commonly specified across various mainstream models. Use the site’s vehicle lookup to confirm compatibility, or check the Vehicle Fitment tab for full details.
Important: Always check the required gap and torque for your engine before installation.
The price displayed is for a single plug, please add the desired amount to your basket.


