NGK GR8DI-12 90908 Spark Plug Laser Iridium GR8DI12

Lowest price found

£9.34

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Postage £4.16

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  • Vast stock of vintage and modern spark plugs
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About the product

The NGK GR8DI-12 is an iridium spark plug with one earthed electrode. Its middle electrode is made from iridium alloy and attached by a laser-welding process.

The plug has an M14 diameter, a thread size of 19 and a 14 Bi-Hex spanner size. Iridium melts at 2450°C and is resistant to spark erosion. The service life is doubled on average compared with standard nickel spark plugs.

Vehicle compatibility and component cross-references are general guidance only and do not constitute a contractual term, representation or warranty. The supplier accepts no responsibility for claims arising from publication of the listing. Check the component specification and compare it carefully with the original before ordering or installation.

At a glance

  • Iridium-alloy middle electrode, laser welded
  • One earthed electrode
  • 14 Bi-Hex spanner size
  • M14 diameter; thread size 19

Specifications6

Material
iridium alloy
Dimensions
Diameter: M14; thread size: 19
Electrode
1 earthed electrode
Electrode material and process
Iridium-alloy middle electrode, laser welded
Melting temperature of iridium
2450°C
Service life comparison
On average, doubled compared with standard nickel spark plugs

Price history

Now

£9.34

Lowest, Aug–Oct

£8.89

Highest

£9.34

Price at the shop, last 79 days

The price has stayed at £9.34 since 3 October. It has been lower in this period: £8.89 (19 Aug – 2 Oct).

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£9.34 at The Green Spark Plug Company Go to shop