The following applies specifically to First Mate Marine Engines (prefix FMM-). Click this link for instructions on How to Return All Other Cores.

The new engine will arrive with return paperwork and instructions, including a Bill of Lading (BOL).

Package the Old Engine

  1. Drain all the fluids.
  2. Secure the old engine in the same container the new engine arrived in.
  3. Label the container for shipment.

Return Address

First Mate Marine Engines
404 W 8th Street
Kearney, NE 68845

Schedule a Pickup

  1. Contact the freight carrier using the information provided on the Bill of Lading.
  2. Follow the instructions provided by the freight carrier to complete the return.

What You Should Expect

  • The carrier will schedule a time and date for pickup.
  • You will not be charged for return shipping.
  • After the core is received and inspected, we will issue your Refund.

If you have questions or concerns, please contact First Mate Marine Customer Service at 1-888-236-9610.


  • For the best service, please return your core within 90 days of purchase.
  • In accordance with state and local laws, sales tax charged on core value may be non-refundable.
Related Products: Engine Assemblies