NGK TR6AP-13E Spark Plug – Stock No. 4968
This NGK platinum spark plug delivers a stable, clean spark for reliable starts and smooth running. It uses a fine platinum centre electrode for strong ignition under load and better resistance to wear over time. The projected tip helps efficient combustion. A built-in resistor reduces electrical noise that can affect sensors and the ECU.
Use this plug where a 14 mm tapered-seat, long-reach fit is specified. For exact vehicle fitment, use our vehicle lookup or check the Vehicle Fitment tab.
- Consistent spark and smooth idle
- Long service life from platinum-tipped centre electrode
Set spark plug gap only to the specification for your engine.
| Part Number | TR6AP-13E |
| NGK Stock Number | 4968 |
| GTIN | 087295149683 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Seat Type | Tapered |
| Reach (thread length) | 19 mm (0.75 in) |
| Hex Size | 16 mm (5/8 in) |
| Heat Range | 6 (NGK scale) |
| Electrode Material | Platinum centre electrode |
| Design | Projected tip, resistor type |
| Factory Gap | 1.3 mm (0.052 in) |
| Terminal | SAE type |
Installation tips
Finger-tighten first, then tighten to spec. For 14 mm tapered-seat plugs, typical torque is 15-20 Nm when using a torque wrench. Always follow your vehicle manufacturer’s guidance.
The price displayed is for a single plug, please add the desired amount to your basket.


