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
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 vehicles are compatible with NGK 3521 Iridium Spark Plugs CR9EIX?A: The NGK 3521 Iridium Spark Plugs CR9EIX are designed for a variety of vehicles, particularly those requiring high-performance spark plugs. It is essential to check your vehicle's manual or consult with a professional to ensure compatibility.
Q: How do iridium spark plugs differ from standard spark plugs?A: Iridium spark plugs, like the NGK CR9EIX, feature a fine wire center electrode that enhances ignitability and longevity compared to standard plugs. This results in better fuel efficiency, improved throttle response, and reduced emissions.
Q: Do I need to purchase a terminal nut separately for installation?A: Yes, the NGK 3521 Iridium Spark Plugs CR9EIX do not include a terminal nut. If your vehicle requires one, you will need to order part #067606-0051 separately.
Q: What is the lifespan of NGK iridium spark plugs?A: NGK iridium spark plugs are known for their durability and can last up to 100,000 miles, depending on your vehicle and driving conditions. Regular maintenance checks are recommended to ensure optimal performance.
Q: Can I use NGK 3521 Iridium Spark Plugs CR9EIX in high-performance engines?A: Absolutely! The fine wire design and iridium construction make the NGK 3521 ideal for high-performance engines, providing enhanced ignition and efficiency. Always verify compatibility with your specific engine type.
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