NGK ILTR6A-13G Laser Iridium Spark Plug (3789)
Original price was: £26.00.£16.76Current price is: £16.76.
NGK ILTR6A-13G Laser Iridium Spark Plug (Stock 3789)
The NGK ILTR6A-13G is an OE-grade laser iridium spark plug designed for clean, reliable ignition. It delivers a strong spark, smooth idle, and consistent performance under everyday driving and spirited use. The iridium centre tip and platinum ground pad give long service life with stable performance over time.
Use this plug if you want dependable ignition, better cold starts, and reduced misfires. It suits standard and lightly tuned engines that keep the stock heat range.
- Sharp, consistent spark for smooth running and good throttle response
- Long service life from iridium centre and platinum ground pad
- Preset 1.3 mm gap for easy installation
| Part number | ILTR6A-13G |
| NGK stock number | 3789 |
| Part category | 686 – Spark Plug |
| GTIN | 087295137895 |
| Construction | Laser Iridium centre electrode with platinum-ground pad |
| Centre electrode tip diameter | Approx. 0.6 mm |
| Heat range (NGK) | 6 |
| Resistor | Yes |
| Thread diameter | M14 x 1.25 |
| Reach | 26.5 mm |
| Seat type | Tapered |
| Hex size | 16 mm |
| Factory gap | 1.3 mm |
| Terminal | Solid |
Fitment guidance
Often specified for select Ford and Mazda 2.0-2.5 petrol engines. Always use the site’s vehicle lookup to confirm, or check the Vehicle Fitment tab for full details.
Install notes
Hand-start threads and torque to the vehicle maker’s spec. Do not alter the gap unless your ECU or build requires it. Do not use anti-seize on NGK plated threads – it can lead to over-tightening.
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-3789 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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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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DELIVERY INFORMATION
Returns
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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.