Remanufacturing FAQs

I need to replace my existing engine. What are my options?

Due to the large number of different engine/boat configurations and the changes made to engine packages over the years, we suggest you contact your dealer, engine power center and/or boat manufacturer for specific guidance in your case. Information on repower options is available in the Repower section of this Web site.

How can I make sure I get the most current product to re-power my boat?

Outboards purchased individually (not part of a boat package) are normally pulled directly from your dealer's inventory. Dealers typically order a specific quantity of products up front in anticipation of selling them over the next several months. This helps to ensure they always have an ample supply of engines to fulfill your requirements quickly. That means you won't have to miss valuable fishing and boating time waiting for an order to ship from the factory. While these outboards are normally as current as the product shipped directly to boat builders, it is possible they were built 12-18 months prior to delivery. Your Mercury dealer can help you confirm you have the latest version by verifying the model code.

I want to upgrade to a new-style sterndrive with my existing engine and transom. Is this possible?

There are many factors which determine the proper sterndrive for a given engine. A different sterndrive may physically bolt to your existing transom assembly, but it may not be a good match for your engine and boat. An Alpha Generation II sterndrive will not fit where an R/MR/Alpha I drive was used. Alpha and Bravo series sterndrives cannot be interchanged. In some cases it is possible to interchange members of the Bravo drive family. We recommend contacting your dealer or engine power center for specific guidance before undertaking any type of sterndrive replacement, upgrade, or repower. Information on repower options is available in the Repower section of this Web site.

I want to upgrade to a newer engine and use my existing sterndrive and transom, what will work?

There are many factors involved in replacing your marine engine; newer current engines will not directly backfit to older style sterndrives and transoms. We recommend contacting your dealer or engine power center for specific guidance before undertaking any type of engine replacement, upgrade or repower. Information on repower options is available in the Repower section of this Web site.

Can the factory rebuild, test or recalibrate engine components, such as ECMs, carburetors, etc?

No, the factory does not offer these  services.

I want to upgrade to a more powerful engine. How much more performance can I expect?

This depends on many factors such as hull type, weight distribution, maximum horsepower rating of the boat, etc., and cannot be accurately determined without more information. We suggest you contact your dealer, engine power center, or boat manufacturer for specific guidance in your case. Information on repower options is available in the Repower section of this Web site.

Can I use an automotive longblock or shortblock to replace my MerCruiser engine?

No, an automotive block cannot be used for several important reasons. The MerCruiser ECMs (electronic control modules) are specifically calibrated to each of our engine models. It would not be possible to determine the effect on the performance or compatibility with an automotive engine. In addition, automotive engines are not equipped to endure the high rpm duty cycles and harsh environment that marine engines see. Further, some of our engine components are unique to marine engines, such as the welch plugs, camshafts, cylinder heads, head gaskets and pistons.