Description
When you’re running a high-RPM engine, standard spark plugs can’t keep up with the demands of racing conditions. The Racing Plugs AR3935 deliver consistent ignition performance under extreme heat and pressure, ensuring reliable combustion across the full power band. Built for serious competitors who refuse to compromise on spark quality.
- 14 mm thread size
- 0.750 in reach
- Gasket seat design
- Non-resistor construction
- Sold individually






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