Remanufactured Marine Engines
Find the right remanufactured marine engine for boats, yachts, fishing vessels, and commercial marine applications. Engines Factory supplies reliable replacement marine engines in multiple configurations with nationwide shipping and professional application support.
Find the Right Marine Engine for Your Boat
Engines Factory supplies remanufactured marine long blocks and, for selected applications, marine short blocks for recreational boats, fishing vessels, yachts, and commercial marine use. We support GM marine engines, MerCruiser applications, and other popular marine engine families. Provide the engine serial number, model or product number, OEM part number, data-plate information, and any available stamped block or casting numbers so our team can verify the correct replacement, availability, core requirements, and price.
What We Need for Your Marine Engine Quote
To prepare an accurate marine engine quote, please provide the engine manufacturer, model, serial number, engine size, and your contact information. If available, include the OEM part number, data-plate information, stamped block number, or casting number. This information helps our team verify the correct marine long block or short block, availability, core requirements, warranty options, and price.
Popular Gas Engine Manufacturers
Popular Marine Engine Manufacturers Include
- GM Marine Engines
- MerCruiser Marine Engines
- Volvo Penta Marine Engines
- OMC Marine Engines
- Marine Power Engines
- Indmar Marine Engines
- Crusader Marine Engines
- PCM Marine Engines
- Ford Marine Engines
- Other Popular Marine Engine Families
Common Marine Engine Applications
- Recreational Boats
- Fishing Boats
- Yachts
- Inboard Boats
- Sterndrive Applications
- Commercial Vessels
- Workboats
- Classic and Restoration Boats
How to Identify Your Marine Engine
Marine engines are usually identified by the engine serial number, model or product number, and information shown on the engine data plate or decal. Depending on the manufacturer, the identification plate may be located on the valve cover, intake area, rear of the engine, or another visible part of the engine.
If the plate is missing or unreadable, an OEM part number, stamped block number, or casting number may help identify the engine family and correct replacement marine long block or short block.
MerCruiser owners can also review the official Mercury Marine serial-number guide.
Short Block
A marine short block typically includes the engine block, crankshaft, connecting rods, pistons, and related internal rotating components. It does not include the cylinder heads. Availability varies by engine family.
Long Block
A marine long block includes the assembled engine block, internal rotating components, camshaft, and cylinder heads. Marine-specific external components and accessories are installed separately.
Application Verification
Marine engine applications may use standard rotation or reverse rotation, and the correct replacement must match the original setup. Block casting, cylinder heads, intake configuration, mounting points, and cooling-system design can also vary. We verify the engine serial number, model, OEM part number, stamped block number, casting number, and rotation before preparing a quote.
Remanufactured Marine Engines Replacement Guide & FAQs
Review important questions about choosing a replacement marine engine, identifying the correct application, comparing short-block and long-block options, understanding warranty coverage, and planning installation and after-sale support.
Engines Factory supplies remanufactured marine engines for recreational boats, fishing vessels, yachts, inboard boats, sterndrive applications, commercial vessels, and workboats. We support popular GM marine, MerCruiser, Volvo Penta, OMC, Indmar, Crusader, PCM, and other marine engine applications. Our team verifies the original engine configuration, including standard or reverse rotation, before quoting the correct marine short block or long block. Nationwide shipping is available throughout the continental United States.
Factory-Direct Engines & Fast Shipping
Engines Factory supplies remanufactured gas, diesel, marine, and industrial engines, along with transmissions, cylinder heads, turbos, and other powertrain components. We serve repair shops, dealerships, fleets, marine businesses, and vehicle owners nationwide. Contact our team for availability, pricing, and a professional quote. Nationwide shipping is available.
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