Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
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 is the size of the Autolite 404 Spark Plugs?A: Each spark plug measures one inch in length and one inch in width, with a height of three point four inches.
Q: What materials are used in Autolite 404 Spark Plugs?A: These spark plugs feature a copper-glass seal and a cold-formed steel shell for durability and performance.
Q: How many spark plugs are in the Autolite 404 pack?A: The Autolite 404 pack contains four individual spark plugs, perfect for replacing multiple plugs at once.
Q: How do I install Autolite 404 Spark Plugs?A: To install, remove the old spark plugs using a socket wrench, clean the threads, and then screw in the new plugs by hand before tightening with a wrench.
Q: Are Autolite 404 Spark Plugs suitable for all vehicles?A: These spark plugs are designed for a wide range of automotive applications, but it's best to check compatibility with your specific vehicle model.
Q: How do Autolite 404 Spark Plugs improve fuel efficiency?A: The Autolite 404 plugs provide quicker starts and better combustion, which can lead to improved fuel economy in your vehicle.
Q: How should I store the Autolite 404 Spark Plugs?A: Store the spark plugs in a cool, dry place, away from moisture and extreme temperatures to maintain their integrity.
Q: What safety precautions should I take when using spark plugs?A: Always wear gloves and safety glasses when handling spark plugs to protect against sharp edges and potential debris.
Q: How often should I replace my Autolite 404 Spark Plugs?A: It's recommended to replace spark plugs every thirty thousand to one hundred thousand miles, depending on your vehicle's requirements.
Q: What if my Autolite 404 Spark Plugs arrive damaged?A: If your spark plugs arrive damaged, contact the seller within thirty days for assistance with a return or exchange.
Q: Can I use Autolite 404 Spark Plugs in high-performance engines?A: Yes, these spark plugs are designed to perform well in various conditions, including high-performance applications.
Q: Do Autolite 404 Spark Plugs reduce radio frequency interference?A: Yes, the resistor in the Autolite 404 Spark Plugs is specifically designed to reduce radio frequency interference.
Q: What makes Autolite a trusted brand for spark plugs?A: Autolite has been a leader in spark plug technology since nineteen thirty-six, providing reliable performance backed by decades of experience.
Q: Are the Autolite 404 Spark Plugs leak-proof?A: Yes, Autolite 404 Spark Plugs feature a heat-fused internal seal, ensuring they are leak-proof for optimal performance.
Q: How do I clean my spark plugs before installation?A: Gently brush the spark plugs with a soft wire brush to remove any debris or oil before installation for better performance.