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.
I bought these Autolite 4316 spark plugs for my old Honda and they made a noticeable difference in performance. The copper design really helps with ignition, and I love that it comes in a 4-pack. Definitely a solid choice for anyone needing replacements!
D
David Kim
Reliable and Easy to Install
These Autolite spark plugs were super easy to install, and my car started up without issue. The copper core definitely helps with better performance. For the price, you can't beat it, especially being in a 4-pack!
E
Emily Chen
Solid but Could Use Improvement
These spark plugs work fine but took longer to arrive than I expected. Installation was straightforward, but I wish the packaging had more protection. My car runs better now, but just a couple of minor hiccups with the purchase.
A
Aisha Shah
Not What I Expected
Unfortunately, one of the spark plugs was faulty right out of the box. My engine still sputters a bit. I’ll give it another try since the others seem fine, but I was hoping for a better experience with Autolite.
M
Mike Thompson
Good Replacement Spark Plugs
I replaced the old plugs in my Ford truck with these Autolite 4316s, and it runs smoother. The copper construction helps with better fuel efficiency. Just wish they included installation instructions – had to look up a video!
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FAQs
Have a question ? We are here to help.
Is the shipping free?
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.
