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89-05 Mazda Miata NGK Spark Plugs

NGK Iridium

Iridium plugs are more durable and have a higher melting point compared to Platinum. Enjoy the benefits of reduced corrosion, improved ignition, superior anti-fouling, and a lower required voltage. These NGK plugs will get you running smoother and making more power through increased efficiency and increased heat resistance.


  • Note:
  • Iridium plugs are able to use larger gap setting with less voltage. Some customers choose to re-gap these plugs to correct misfiring or tune for optimal spark -- do so at your own risk -- a slide-type plug gapper can damage the fragile iridium tip.
  • Price is for 4 spark plugs
  • Please be aware that the 1.6 and 1.8 motors use different spark plugs.
  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
90-93 1.6 Iridium (Set of 4) 3764 $43.52 $29.00 Usually ships in 2-3 weeks
94-05 1.8 Iridium (Set of 4) 5464 $43.52 $29.00 1 available
90-93 1.6 Iridium (Set of 4) - One Step Colder 6988 $43.52 $29.00 3 available
94-05 1.8 Iridium (Set of 4) - One Step Colder 3764 $43.52 $29.00 Usually ships in 2-3 weeks
NGK V-Power Copper

V-Power spark plugs are a patented design by NGK to improve ignitability and reduce quenching. Ignitability is improved by the V-groove cut in the center electrode parallel to the ground electrode, this directs the spark to the edge of the center electrode thus exposing it to more of the air/fuel mixture. These are an OEM type plug with a hot spark, the downside is that they have a shorter service life.


  • Special Notes:
  • Please be aware that these plugs fit the 1.6 motor only.
  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
90-93 1.6 V-Power (Set of 4) 2756 $10.68 $7.12 3 available
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1635 Bustleton Pike, Suite B, Feasterville, PA 19053
Tel: 215.489.2820
Hours:
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©2016 JSC Speed Inc.
All Rights Reserved.

1635 Bustleton Pike,
Suite B
Feasterville, PA
19053

Tel: 215.489.2820