Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Autolite Copper Core Spark Plugs deliver quick starts, good fuel economy, and smooth acceleration. The copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap, creating a gas-tight seal that is 100 percent leak-proof. Copper Core spark plugs feature a cold-formed steel shell and precision rolled threads, and a one-piece terminal post that adds strength. The multi-rib insulator reduces the danger of ''flash-over'' to prevent misfires, and the resistor reduces radio frequency interference (RFI) and electrode erosion. The full copper core electrode provides better performance in all conditions. Autolite Copper Core plugs are your industry standard.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What makes Autolite 3924 Copper Resistor Spark Plugs different from other spark plugs?A: The Autolite 3924 Copper Resistor Spark Plugs feature a full copper core electrode that provides superior thermal conductivity for improved performance across various conditions. Additionally, these plugs incorporate a copper-glass seal which enhances durability and ensures a gas-tight seal to prevent leaks.
Q: How do Autolite Copper Spark Plugs contribute to fuel efficiency?A: Autolite Copper Spark Plugs are designed to deliver quick starts and smooth acceleration, which contribute to better fuel economy. The advanced design minimizes misfires and ensures optimal combustion, leading to more efficient engine performance.
Q: Are Autolite 3924 Spark Plugs compatible with all vehicle makes and models?A: While the Autolite 3924 Copper Resistor Spark Plugs are designed for a wide range of vehicles, it is essential to check your vehicle's specifications or consult your owner's manual to ensure compatibility with your specific make and model.
Q: What should I consider when replacing spark plugs in my vehicle?A: When replacing spark plugs, consider factors such as the correct type and size, maintenance intervals recommended by your vehicle's manufacturer, and the condition of your existing plugs. Autolite 3924 plugs are easy to install and designed for long-lasting durability.
Q: How can I maintain the performance of my Autolite Copper Spark Plugs?A: To maintain the performance of your Autolite Copper Spark Plugs, ensure regular inspections during routine vehicle maintenance, replace them as recommended, and keep your engine in good condition by adhering to service schedules. This will help ensure optimal performance and longevity.
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