







NGK CPR7EAIX-9 Iridium IX Spark Plug | Ultra-Fine Electrode, Durable Ignition
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Description
xNGK CPR7EAIX-9 Iridium IX Spark Plug: Precision and Durability
Upgrade your ignition with the NGK CPR7EAIX-9 Iridium IX spark plug. Built around a stronger, harder iridium center electrode compared to platinum, this design enables an ultra-fine center electrode of about 0.6 mm. The result is a spark that is precise and consistent across a wide range of driving conditions, contributing to steadier idling and reliable starts.
In everyday use, a fine electrode can help optimize the ignition sequence, potentially improving throttle response and overall drivability. The iridium center electrode is paired with a gasket seat and robust sealing to help maintain reliability in varied environments, from hot urban streets to cool highway cruises.
Core design features
- Outer thread: 10.0 mm
- Spanner size: 16 mm
- Spark plug configuration: 1 earth electrode; interference suppression 5 kOhm
- Iridium middle electrode with gasket seat
- Spark position: 3 mm
- Thread length: 19 mm
Practical benefits you might notice
- Potential for more reliable ignition starts in varied temperatures
- Durable iridium construction that resists wear in typical driving cycles
- Reduced misfires and stable spark delivery in everyday engines
While individual results can vary by vehicle and driving conditions, NGK’s Iridium IX line aims to deliver consistent performance and longevity. If you are replacing a worn plug or upgrading for more efficient ignition, this model offers a thoughtful balance of durability and precision without promising guaranteed outcomes.
Technology and fitment considerations
Designed for modern gasoline engines, this plug uses a fine center electrode to optimize spark energy delivery. The 10 mm outer thread and 19 mm thread length support a broad range of applications. Always verify fitment with your vehicle manual or NGK’s compatibility guide before installing to ensure proper sealing and performance.
In summary, the CPR7EAIX-9 Iridium IX spark plug is built for drivers who value reliability, smooth operation, and a durable center electrode. It suits daily commutes, weekend trips, and performance-oriented drives alike, offering potential benefits without guarantees across all conditions.
FAQ
Q: Which vehicles or engines is the NGK CPR7EAIX-9 suitable for?
A: It's compatible with many modern gasoline engines; confirm fitment with your owner's manual or NGK's compatibility guide.
Q: What are the key benefits of NGK Iridium IX plugs?
A: Ultra-fine 0.6 mm iridium center electrode, stronger and harder than platinum, plus a gasket seat for secure sealing.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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