Ignition Knock (Detonation) Sensor - ACDelco (213-1525)

• In stock orders ship within 24 hours.
• Weekend orders will be processed the next business day.
• If a part is not in stock and must be ordered from the manufacturer, it usually takes 2-3 days to arrive to us and will be promptly shipped to you. Most of the orders are shipped complete within 2-3 business days. A few of the parts ordered from the manufacturer may take up to 5-6 business days to arrive and will shipped to you immediately.
• Depending upon location, ground shipments usually take 2-7 days.
• Your order may be shipped Overnight for an additional cost.
• Oversized shipments will be additional; you will be contacted prior to shipping for approval.
• We cannot guarantee transit times for ground and oversize orders.
• Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost to the customer.
• We do not ship internationally.
• In the unlikely event that a part has been placed on backorder or discontinued, we will do our best to try and find one for you as quickly as possible.
• We do not ship COD orders.

We use the following shipping parties:

• UPS
• USPS

Some products available are shipped directly from the manufacturer or supplier rather than from our own warehouse. This allows us to offer you a wider selection of parts at competitive prices. When an item shows "Drop Ship" the supplier currently has it in stock and it will typically ship within 1–2 business days

30-Day Return Policy – Upgrade Auto Parts

At Upgrade Auto Parts, we want you to be completely satisfied with your purchase. If for any reason you are not happy with your order, you can return it within 30 days of receiving your item for a refund or exchange, subject to the following conditions:

1. Eligibility: Returns are accepted on parts that are unused, in original condition, and in the original packaging. Items that have been installed, used, or modified are not eligible for return.

2. Shipping Costs: The customer is responsible for return shipping costs unless the return is a result of a Upgrade Auto Parts error (e.g., wrong part sent or defective item). We recommend using a trackable shipping service to ensure your return reaches us safely.

3. Refunds & Exchanges: Once the return is received and inspected, we will issue a refund to your original payment method or process an exchange if preferred. Refunds typically take 5-7 business days to be processed.

If you have any questions or need assistance with your return, our customer service team is here to help!

Thank you for shopping with Upgrade Auto Parts!