Description
NGK ZKBR7A-HTU Spark Plug (Stock No. 91785)
A high-quality NGK spark plug designed for clean ignition, stable idle, and reliable performance under load. The heat range 7 helps control temperatures in tuned or hard-driven engines, reducing the risk of pre-ignition. It is a resistor type to limit electrical noise that can affect the ECU and sensors.
Use as a direct replacement where specified, or as a performance-appropriate colder option if recommended for your engine. Always confirm fitment with the vehicle lookup or see the Vehicle Fitment tab.
| Brand | NGK |
| Part Number | ZKBR7A-HTU |
| NGK Stock Number | 91785 |
| Category | 686 – Spark Plug |
| GTIN | 87295917855 |
| Type | Resistor spark plug |
| Heat Range | 7 (colder than standard NGK 6) |
| Thread Size | M12 x 1.25 |
| Reach (thread length) | 26.5 mm |
| Hex Size | 14 mm |
| Seat Type | Tapered seat |
| Gap | Pre-gapped to OE specification |
- Strong, consistent spark for smoother starts and idle.
- Colder heat range helps manage combustion temps in performance use.
- Resistor design reduces interference with vehicle electronics.
Important: Check the Vehicle Fitment tab or our vehicle lookup to confirm compatibility. Install to the manufacturer’s torque spec and do not alter the gap unless your OE procedure requires it.
The price displayed is for a single plug, please add the desired amount to your basket.
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