Autolite AR3910-4PK High Performance Racing Non-Resistor Spark Plug, Pack of 4Supply

MAXIMUM PERFORMANCE: Replacement racing spark plugs are used by many professional car drivers. Our high performance spark plugs deliver the action-pack performance that professional is looking for to reach maximum performance

EFFICIENCY: This automotive replacement spark plug has anti-corrosive nickel-plating that prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency

IMPROVED DURABILITY: Autolite Racing Spark Plugs contains Yttrium-enhanced alloy to enable up to 8% reduction inside wire temperature for improved durability and less pre-ignition. Designed with colder heat ranges

CONSTRUCTION: This automotive replacement spark plug features a cut background electrode for improved ignitability of flame kernel and better heat transfer. Coated in an anti-corrosive nickel plating to prevent rusting

AUTOLITE ADVANTAGE: Autolite Spark Plugs has been producing spark plugs since 1936, making it one of the most trusted and reliable brands for your OE replacement spark plugs needs.