Description
Overview:
The Genuine NGK Spark Plug IFR6T11 (Stock No. 4589) is a high-quality Laser Iridium spark plug designed to deliver reliable ignition in modern petrol engines. It uses a fine-wire iridium centre electrode and a durable ground electrode for consistent sparking, improved combustion, and longer service life. A built‐in resistor helps suppress electrical interference with vehicle electronics. The robust ceramic insulator and corrosion‐resistant metal shell support stable operation under heat and vibration. Suitable for a wide range of passenger cars and light commercial vehicles, and for compatible power equipment where this exact code is specified, it helps maintain smooth idling, clean acceleration, and dependable cold starts. As a genuine NGK part, it offers the fit and performance expected by OEM and aftermarket technicians.
Key Features:
- Genuine NGK Laser Iridium plug (IFR6T11, Stock No. 4589) for assured quality and compatibility
- Fine‐wire iridium centre electrode for strong, consistent ignition and reduced misfire risk
- Precision-engineered for smooth idle, responsive starts, and efficient combustion
- Built‐in resistor minimises radio frequency interference with engine management systems
- Factory-set gap for the part code, reducing setup time and maintaining correct spark kernel
- Long service life compared with standard nickel plugs, reducing maintenance intervals
- Corrosion‐resistant shell and robust ceramic insulator for reliability under heat and vibration
- Straightforward replacement using standard spark plug tools; fit only to engines specified for IFR6T11
Typical Applications:
Used in petrol engines that specify NGK IFR6T11, including many passenger cars and light vans. Also suitable for compatible generators and small plant where the manufacturer calls up this exact plug. Ideal for routine servicing to restore starting performance, smooth running, and fuel efficiency in daily driving, mixed urban/motorway use, and regular fleet maintenance.
Also known as:
Iridium spark plug, ignition plug, HT plug, high‐tension plug, engine spark plug, spark igniter, ignition element, spark electrode. These terms refer to the same component that produces the spark to ignite the air‐fuel mixture in petrol engines.
Product Specifications
| L&S Part No. | IFR6T11 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 4589 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | NGK |
| Key Features | - Genuine NGK Laser Iridium plug, Stock No. 4589 - Fine-wire iridium centre electrode for consistent ignition - Built-in resistor reduces radio frequency interference - Factory-set gap ensures correct spark kernel - Corrosion-resistant shell for reliability under heat and vibration |
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