NGK IGR6A11 Laser Iridium Spark Plug (5743)
Original price was: £24.06.£15.57Current price is: £15.57.
NGK IGR6A11 Iridium Spark Plug – Stock No. 5743
The NGK IGR6A11 is a high quality iridium spark plug designed for stable ignition and long life. It uses a fine-wire iridium centre electrode to improve spark efficiency, especially under load. This helps cold starts, throttle response, and fuel consistency. It is a resistor type plug to reduce electrical noise that can affect the ECU or audio systems.
Use this as a direct replacement where IGR6A11 is specified. For vehicle fitment, please use the site’s vehicle lookup or check the Vehicle Fitment tab.
- Fine-wire iridium centre for a strong, stable spark
- Resistor design to cut electrical interference
- Factory set gap for easy installation
| Part Number | IGR6A11 |
| NGK Stock Number | 5743 |
| Category | 686 – Spark Plug |
| GTIN | 087295157435 |
| Plug Type | Iridium, resistor |
| Heat Range | 6 (NGK scale) |
| Preset Gap | 1.1 mm |
| Centre Electrode | Fine-wire iridium |
| Ground Electrode | Standard ground strap |
Why choose this plug
The iridium tip needs less voltage to fire, so the spark stays consistent at high rpm and under boost or heavy load. Expect smoother idle, reliable ignition in cold weather, and steady performance over a long service life. Replace as a matched set and check the gap before fitting.
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-5743 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
All items marked as available for 'Express Delivery' are dispatched next working day before 3pm.
If you order contains a mixture of 'In Stock', 'Stock Order' or 'Backorder' items, your order may be split to optimise logistics and improve delivery times.
Out of stock items are sourced from our extended inventory and supplier inventory where possible. These may require manufacturing or carry extended lead times which we endeavour to alert you about if the website hasn't already provided an estimated delivery timescale.
DELIVERY INFORMATION
International Shipping
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If your delivery address is outside of the UK, local tax will be removed and you will have to pay import duties and taxes when the shipment reaches your country.
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DELIVERY INFORMATION
Returns
Progressive Parts operates a 14 day return period from the date of delivery for unused products.
Follow the returns process below for our team to generate you an RMA ID and instruct you to return the goods.
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Stock at Progressive Parts
Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.
What do our stock statuses mean?
1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.
0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.
MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.
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.