NGK SILFER8C7ES Laser Iridium Spark Plug (94712)

NGK SILFER8C7ES Spark Plug (Stock No. 94712)

This NGK Laser Iridium spark plug is built for stable ignition and long life. It uses a fine iridium centre electrode and a platinum-tipped ground electrode for strong sparks with less voltage. That helps cold starts, smoother idle, and reliable performance under boost. Heat range 8 suits many modern high-output petrol engines and tuned setups where extra knock resistance and cooler running at the plug are useful.

Fine-wire iridium centre for a strong, consistent spark

Platinum ground pad for long service life

Resistor design to reduce electrical noise for the ECU

Specification

Value

Part Category

686 – Spark Plug

Part Number

SILFER8C7ES

NGK Stock Number

94712

GTIN

87295947128

Electrode Type

Laser Iridium centre with platinum ground pad

Heat Range

8 (NGK scale)

Resistor

Yes

Factory Gap

0.7 mm (do not re-gap unless specified by the manufacturer)

Thread Diameter

12 mm

Thread Reach

26.5 mm

Hex Size

14 mm

Seat Type

Tapered

Terminal

Solid

Fitment guidance

This plug suits select modern direct-injection turbo petrol engines that specify a 12 mm thread, 26.5 mm reach, and heat range 8. Use our vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.

Note: Always tighten to the torque specified by your vehicle manufacturer. Over- or under-tightening can damage the plug or cylinder head.

The price displayed is for a single plug, please add the desired amount to your basket.