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The NGK Iridium IX Spark Plug is engineered to deliver reliable ignition and enhanced engine response for Cadillac CTS and XTS models from 2014–2015. Featuring a fine-wire iridium center electrode that is six times harder than platinum, this plug ensures superior durability and consistent performance under extreme operating conditions. Its tapered cut ground electrode promotes efficient combustion, resulting in smoother starts, stable idling, and precise throttle response.
Built to handle higher combustion temperatures, the NGK Iridium IX utilizes a colder heat range than standard OEM plugs—making it a solid choice for tuned or performance engines. The iridium alloy’s exceptional resistance to wear and fouling maintains optimal performance and fuel economy over extended use. For drivers seeking even greater ignitability and lifespan, NGK’s Ruthenium HX series offers a natural upgrade path.
Features:
Fine-wire iridium center electrode for enhanced durability and stable ignition
Tapered cut ground electrode improves throttle response and cold starts
Colder heat range than OEM to manage higher combustion temperatures
Excellent anti-fouling performance for consistent efficiency
Engineered to meet or exceed OEM fitment standards
Compatible with 2014–2015 Cadillac CTS and XTS models
Fitment:
2014 Cadillac CTS Vsport
2014 Cadillac CTS Vsport Premium
2014 Cadillac XTS Vsport Platinum
2014 Cadillac XTS Vsport Premium
2015 Cadillac XTS Vsport Platinum
2015 Cadillac XTS Vsport Premium
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
