4 pc NGK 6510 Spark Plug LTR7IX-11 Iridium IX

The NGK 6510 LTR7IX-11 Iridium IX Spark Plug is designed for compatible applications requiring high-performance ignition. Featuring a durable iridium center electrode, the Iridium IX design delivers concentrated spark energy to promote reliable ignitability and responsive acceleration.

Built to withstand demanding operating temperatures, NGK Iridium IX spark plugs feature trivalent metal plating for corrosion resistance and anti-seizing properties. This package includes 4 NGK 6510 / LTR7IX-11 spark plugs.

Application & Fitment

Specifications

Reference Numbers

Key Features

• Iridium IX Performance: Designed as a performance-focused upgrade for compatible applications requiring NGK 6510 / LTR7IX-11 spark plugs.
• Iridium Center Electrode: Concentrates spark energy to promote strong ignitability and responsive combustion.
• High-Temperature Durability: Iridium construction is designed to maintain reliable performance under demanding combustion temperatures.
• Corrosion Resistance: Trivalent metal plating provides anti-corrosion and anti-seizing properties.
• Performance-Oriented Ignition: Designed to support consistent combustion and responsive acceleration in compatible engine applications.
• Suitable for Demanding Applications: Iridium IX construction is designed for reliable operation in compatible fuel-injected and turbocharged engine applications.

Package Contents

Before You Buy

Why Choose NGK Iridium IX?

Installation Notes

• Confirm NGK 6510 / LTR7IX-11 is correct for your specific vehicle and engine before installation.
• Check the spark plug gap before installation. Although these spark plugs are pre-gapped for general use, the required gap may vary depending on the specific application.
• If gap adjustment is required, use an appropriate spark plug gapping method and take care not to damage the fine iridium center electrode.
• Install spark plugs only when the engine is cool.
• Thread each spark plug carefully into the cylinder head to help prevent cross-threading.
• Tighten the spark plugs according to the vehicle or engine manufacturer's specified installation procedure and torque.

Important: These spark plugs are pre-gapped for general use; however, the correct spark plug gap depends on the specific engine application. Always verify the required gap and fitment specifications before installation.

Shipping & Returns Policy

1. Shipping Time Overview

Estimated Delivery Time = Processing Time + Transit Time

All estimated delivery times are based on historical data and typical carrier performance. They are provided for reference only and are not guaranteed.

2. Order Cut-Off Time

Orders placed before 6:00 PM PT (Pacific Time) on business days will begin processing the same day whenever possible. Orders placed after 6:00 PM PT, or on weekends or U.S. public holidays, will begin processing on the next business day.

3. Processing Time

• Processing time starts from the date you place your order.
• Most orders are processed within 1–2 business days after payment is confirmed.
• We do not process or ship orders on weekends or U.S. public holidays.
• Processing time does not include shipping (transit) time.

4. Shipping Area & Transit Time (USA Only)

Geekstop currently ships exclusively within the contiguous United States (Lower 48 states).

We do NOT ship to:

• Alaska and Hawaii
• U.S. Territories, including Puerto Rico, Guam, U.S. Virgin Islands, American Samoa, and Northern Mariana Islands
• APO / FPO / DPO military addresses
• Carrier-defined remote or off-grid locations

If your address is considered a restricted or remote area by carriers and cannot be served, we reserve the right to cancel the order and issue a full refund.

Once your order has been processed and dispatched, typical transit times are:

Delivery times are estimates only and may be affected by carrier workload, weather, natural disasters, peak seasons, customs or security checks, and other factors beyond our control. We are not responsible for any indirect or consequential damages caused by shipping delays.

5. Shipping Rates & Free Shipping

• Free Standard Shipping on orders of $30 or more within the contiguous United States (Lower 48).
• Orders under $30 are charged a flat shipping fee of $7.99.
• Additional shipping surcharges may apply to oversized, overweight, or special-handling items.
• If a package is returned due to an incorrect or incomplete shipping address provided by the customer, reshipping charges will apply. Original shipping charges are non-refundable.
• Any expedited or upgraded shipping service selected during checkout is non-refundable.

6. Order Confirmation & Tracking

• Once your order has shipped, you will receive a confirmation email with a tracking number.
• Please allow 24–48 hours for tracking information to update in the carrier’s system.

7. Lost, Delayed, or Stolen Packages

• Once a package is marked as “Delivered” by the carrier, the order is considered completed at the shipping address provided.
• If tracking shows “Delivered” but you did not receive the package, please contact us within 7 calendar days of the recorded delivery date so we can help initiate a carrier investigation.
• Claims for missing packages submitted after 7 calendar days from the carrier’s recorded delivery date may not be eligible for compensation.
• Missing package claims will be processed only after the carrier completes its investigation and confirms the loss.
• We are not responsible for delays caused by carriers, incorrect addresses, severe weather, natural disasters, holidays, or other circumstances outside our control.

8. Address Accuracy, Delivery Attempts & Refusals

Customers are responsible for providing a complete and accurate shipping address at checkout.

• If a package is returned due to an incorrect or incomplete address, reshipping fees may apply and original shipping costs are non-refundable.
• If a delivery attempt fails due to customer unavailability, refusal of the shipment, or failure to pick up from a designated pickup point, additional fees or return shipping charges may be deducted from any refund.
• We cannot reroute or modify the address of packages once they have been shipped or are in the carrier’s possession.

9. Multi-Package Shipments

Some orders may ship in multiple boxes due to product weight, size, or availability. Separate tracking numbers will be provided for each package when applicable.

10. Return Window & Eligibility

Orders may be returned within 30 calendar days from the date you receive the item.

• Items must be unused, uninstalled, and in their original packaging with all accessories and hardware included.
• Any item showing signs of installation, wear, or contamination, such as brake dust, grease, or fluids, will not be eligible for return.
• Custom-made or special-order products, if applicable, are non-returnable unless there is a confirmed quality issue.

11. Product Warranty

Geekstop provides a 1-year quality warranty on all products purchased from our store. If a product fails due to a manufacturing defect within 1 year of purchase, we will replace the defective part or offer a refund according to our warranty evaluation.

We are not responsible for damages caused by improper installation, misuse, neglect, racing or competition use, or unauthorized modifications.

12. Return Shipping Fees

We do not charge a separate return handling fee. Return shipping fees are handled as follows:

1. Quality Issue within 30 Days – We Pay
   If the product has a verified quality issue within 30 days of delivery, we will cover the return shipping cost and issue a full refund of your order amount or provide a replacement.
2. No Quality Issue / Customer Preference – Customer Pays
   If there is no quality issue and you wish to return the product for personal reasons, such as “no longer needed” or “ordered the wrong item”, you are responsible for the return shipping cost. The original shipping cost we paid to ship the order to you, including discounted or “free” shipping, will be deducted from your refund.
3. Rejected / Return-to-Sender Shipments
   If a shipment is rejected, refused, or returned to sender due to customer reasons, including refusal, unclaimed package, or incorrect address, any additional carrier charges will be deducted from the total refund amount.

13. Return Shipping Method & Evidence Requirement

• Customers must use a trackable shipping service for all returns. We are not responsible for lost return shipments without valid tracking.
• Claims for defective or damaged products must include clear photos or videos showing the issue and the packaging. Claims submitted without evidence may not be approved.

14. Restocking Fees & Right to Refuse Returns

Under normal circumstances, Geekstop does not charge a restocking fee. However, we reserve the right to deduct a reasonable restocking fee from the refund for items that are returned in non-original condition, such as missing parts, damaged packaging, or signs of installation.

Geekstop reserves the right to refuse returns that do not meet our return conditions or are received without prior authorization.

15. Order Cancellation & Changes

• Orders cannot be canceled or modified once they have been shipped or are in the carrier’s possession.
• We reserve the right to cancel any order if the address is high-risk, unverifiable, or restricted by carriers. A full refund will be issued in such cases.

16. How to Request a Return or Warranty Claim

To request a return, refund, or warranty service, please contact us with your:

• Order number
• Full name and contact information
• Reason for return or description of the issue
• Photos or videos of the product and packaging, if applicable

Email: karly@geekstopbrakes.com
Our support team typically replies within 24 business hours.

17. Refund Processing Time

Once your returned item is received and inspected, approved refunds will be issued to your original payment method within approximately 3–7 business days. Your bank or payment provider may require additional time to post the credit.

Geekstop reserves the right to update or modify this Shipping & Returns Policy at any time. Any changes will be posted on this page and will apply to orders placed after the date of the update.