The product is a set of 8 ACDelco Iridium spark plugs with a thread diameter of 14mm, designed for GM Chevrolet, GMC, Buick, and Cadillac vehicles. Specifically, these spark plugs have the OE/OEM part number 41-993 and are manufactured by ACDelco. Made with high-quality iridium material, these spark plugs are reliable for maintaining optimal ignition performance in your vehicle. Ideal for car enthusiasts looking to upgrade or replace their spark plugs, these ACDelco spark plugs are a great choice for ensuring smooth and efficient engine operation.Shipping Policy
Processing Time
All orders are processed within 1–2 business days after payment is received. Orders placed on weekends or holidays will be processed on the next business day.
Shipping Method
Orders are shipped via USPS, FedEx, or UPS, depending on the item and destination. Tracking information will be uploaded to once the shipment is dispatched.
Shipping Costs
Approximately 99% of our listings include free shipping within the United States. If you request a specific shipping service or expedited delivery, additional shipping fees may apply and will be calculated based on your location.
International Shipping
We ship internationally through ’s International Shipping Program. In most cases, we ship the package to the shipping hub in the United States, and handles the international delivery on our behalf.
International buyers are responsible for any customs duties, taxes, or import fees required by their country. If allows checkout to your country, we are able to ship the item to you.
Lost or Delayed Packages
If a package is lost or significantly delayed during transit, please contact us. We will assist in opening an investigation with the shipping carrier and help resolve the issue as quickly as possible.
If the tracking status shows “Delivered”, the shipment will generally be considered successfully delivered according to the carrier’s confirmation. We recommend checking with household members, neighbors, building management, or your local carrier office if you cannot locate the package.
Return Policy
Return Window
We accept returns within 30 days of delivery, in accordance with ’s return policy.
Condition for Return
Items must be returned in original condition, including all packaging, accessories, manuals, and components. Items showing signs of misuse, missing parts, or altered condition may be subject to a partial refund in accordance with ’s seller protection policies.
Return Process
Please open a return request through ’s return system. We will review the request and provide return instructions.
Refunds
Refunds will be processed within 3–5 business days after the returned item is received and inspected. Refunds will be issued to the original payment method through .
Return Shipping Costs
If the return is due to our error (wrong item, defective, or damaged), we will cover the return shipping cost.
If the return is due to buyer’s remorse or change of mind, the buyer is responsible for return shipping.
Exchanges
We currently do not offer direct exchanges. If you would like a different item, please return the original item and place a new order.
For higher-value items, packages may require signature confirmation or additional delivery verification to ensure secure delivery.
Product Verification & Return Abuse Protection
For quality assurance and fraud prevention, certain items may have serial numbers, security markings, or product identifiers recorded prior to shipment. Items may also be photographed and documented before shipping.
Returned items will be inspected to ensure they match the original item shipped, including serial numbers and identifying marks. Returns that show tampering, missing components, mismatched serial numbers, or signs of abuse may be partially refunded or denied in accordance with seller protection policies.
Please feel free to message us through if you have any questions. We appreciate your business.
