NGK ILFR6T11 Laser Iridium Spark Plug (4904)
Original price was: £33.79.£21.85Current price is: £21.85.
NGK ILFR6T11 Laser Iridium Spark Plug – Stock No. 4904
This NGK Laser Iridium plug delivers a strong, consistent spark for clean combustion. It helps cold starts, smooth idle, and steady performance. The fine-wire iridium centre electrode needs less voltage to fire, which aids reliability under load. A platinum-tipped ground electrode improves durability and keeps the gap stable over time.
It is a resistor-type plug, so it reduces electrical noise that can affect sensors and the radio. Heat range 6 (NGK scale) suits many standard to mildly tuned petrol engines that require this spec. This is not a power upgrade on its own, but it can restore lost performance and efficiency if your old plugs are worn.
Always match the exact part number to your engine specification. Use the vehicle lookup on our site or check the Vehicle Fitment tab before ordering.
- Reliable ignition for everyday driving and spirited use
- Fine-wire iridium for stable spark and long service life
- Factory-set 1.1 mm gap for consistent performance
| Brand | NGK |
| Part Number | ILFR6T11 |
| NGK Stock Number | 4904 |
| Category | 686 – Spark Plug |
| GTIN | 087295149041 |
| Type | Laser Iridium resistor spark plug |
| Heat Range | 6 (NGK scale) |
| Electrode Design | Fine-wire iridium centre, platinum pad ground |
| Factory Gap | 1.1 mm |
Fitment Guidance
Used across various modern petrol engines where NGK specifies ILFR6T11. Fitment varies by manufacturer and engine code. Please use our vehicle lookup or check the Vehicle Fitment tab to confirm.
The price displayed is for a single plug, please add the desired amount to your basket.
| Weight | 0.05 kg |
|---|---|
| Dimensions | 10 × 3 × 3 cm |
| Brand |
NGK-4904 Confirmed Fitment
Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions
UK Shipping
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DELIVERY INFORMATION
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DELIVERY INFORMATION
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Stock at Progressive Parts
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1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
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0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.
OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.
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Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.
Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.