Autolite 3924 Copper Resistor Automotive Replacement Spark Plug (1 Pack)

Upgrade your vehicle's performance with the Autolite 3924 Copper Resistor Automotive Replacement Spark Plug. With its full copper core electrode, this spark plug provides maximum thermal conductivity for outstanding performance in any conditions.

Not only does this spark plug deliver maximum performance, but it also offers improved durability. Thanks to its leak-proof design and heat fused internal seal, you can trust that it will last for the long haul.

When it comes to construction, these replacement spark plugs stand out from the competition. The copper-glass seal bonds the insulator and the terminal post center electrode together, ensuring a gas-tight seal for full required voltage at the spark gap.

In addition to its superior performance and durability, the Autolite copper spark plug also contributes to fuel efficiency. Experience quick starts, better fuel economy, and smooth acceleration when you choose Autolite.

Autolite has been a trusted leader in spark plug technology since 1936, and their copper core spark plugs are no exception. With decades of experience and passion behind them, you can rely on Autolite for top-notch performance and value.

Don't settle for anything less than the best. Upgrade to Autolite Copper Core Spark Plugs and experience quick starts, improved fuel economy, and smooth acceleration. Trust the industry standard and join the countless satisfied customers who rely on Autolite. Get yours today!