NGK SILFER8D7ES Laser Iridium Spark Plug – Stock No. 90781
NGK SILFER8D7ES is a Laser Iridium spark plug designed for stable ignition, long life, and clean running. It uses a fine iridium centre tip for a strong spark with less voltage, and a platinum pad on the ground electrode to slow wear. This helps cold starts, throttle response, and consistency under load.
Built-in resistor reduces electrical noise that can affect the radio or ECU. The solid terminal cap gives a secure connection in OE-style plug leads.
Use the site’s vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
- Strong, consistent spark for smoother idle and reliable starts
- Long service life compared with standard nickel plugs
- Stable combustion under boost or high load
- Factory-set gap for quick installation
| Part number |
SILFER8D7ES |
| NGK stock number |
90781 |
| Type |
Laser Iridium (iridium fine-wire centre, platinum ground pad) |
| Heat range |
8 (NGK scale – medium heat rating) |
| Resistor |
Yes |
| Terminal |
Solid terminal (non-removable cap) |
| Gap |
Preset from factory – adjust only if the vehicle manufacturer specifies |
| Service life |
Extended vs. standard copper/nickel plugs (actual interval depends on engine and use) |
| Installation |
Fit to clean threads and torque to the vehicle manufacturer’s spec |
Note: Always match heat range, reach, thread size, and gap to your engine. Use the vehicle lookup or the Vehicle Fitment tab to confirm this exact part.
The price displayed is for a single plug, please add the desired amount to your basket.
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