1-4 DAYS DELIVERY
100% ORIGINAL AND QUALITY
60 DAYS RETURNS
- Description
- Shipping and Refund
- Reviews
| Air Freight Prohibited: true |
| Not Carb Approved: false |
| Carb Acknowledgement Required: f |
| Ltl Freight Required: false |
| Prop 65: Y |
| Epa: N/A |
Will immediately seal small leaks caused by external damage, porous solder joints and hairline cracks in cooling systems of all water cooled engines. Coolant is prevented from entering the combustion chamber due to internal leaks from head gasket etc. It does not react with oxygen or heat and will never prevent system flow or cause overheating. Radiator Stop Leak works as long as its in the coolant.
For water based cooling system with or without filters. Safe with aluminum or plastic radiators. One can is sufficient for 10 liters (2.6 gal.) of coolant. Compatible with most types of coolant or anti-freeze. May be used as a preventive.
Shake well before use. Add contents to the cold cooling system. Start up the heater. Then drive the vehicle for at least 10 minutes. The contents is sufficient for up to 10 liters (2.6 gal.) of coolant.
Shipping & Processing Time
All in-stock orders are processed and shipped within 1 business day (excluding weekends and holidays).
Delivery typically takes 2–5 business days, depending on the destination. We ship from multiple warehouses across the United States, which allows us to deliver orders as quickly as possible.
Please note that delivery times are estimates provided by the carrier and are not guaranteed.
Shipping Carriers
Most orders are shipped via UPS Ground or FedEx, depending on the size and weight of the item.
Some large or oversized items may be shipped via SAIA or other freight carriers.
Carrier selection is determined automatically at the time of shipment.
Tracking Information
Once your order has shipped, a tracking number will be emailed to the email address provided at checkout.
Tracking information usually becomes active within 1 business day after shipment, depending on the carrier.
Where Is My Order?
When tracking information is provided, this means your order has been processed and shipped.
Carriers such as UPS and FedEx provide point-in-time tracking, meaning updates occur as the package is scanned during transit.
Most orders arrive within 2–5 business days. If your order does not arrive within the estimated timeframe, please contact us and we will be happy to assist.
Delivered Packages & Theft
Once an order is marked as Delivered by the carrier to the address provided at checkout, the order is considered successfully fulfilled.
We are not responsible for lost or stolen packages after delivery, including cases of mail theft.
If your tracking shows “Delivered” but you did not receive the package, we recommend:
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Checking around your property and with neighbors
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Contacting the carrier to file a missing or stolen package claim
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Filing a police report for mail theft (if applicable)
If the carrier provides written confirmation of delivery error, please contact us and we will review the case.
Signature Requirement
Signature confirmation is not required by default for orders under $200.
If you would like to add signature confirmation to your shipment, please contact us before placing your order. Additional fees may apply.
Incorrect Shipping Address
Customers are responsible for providing an accurate and complete shipping address at checkout.
We are not responsible for orders delivered to an incorrect address provided by the customer.
Cancellations
Order cancellations are free of charge as long as the order has not yet shipped.
Please contact us as soon as possible if you need to cancel your order. Once an order has shipped, it cannot be canceled.
Contact Us
If you have any questions regarding shipping, delivery, or your order, please contact us and we will be happy to help.





