Mercruiser 3.0 Complete Inboard Gas Engines

MerCruiser 3.0-Liter Engines to Make Your Boat Run Better Than Ever

Don't let your boat sit idle any longer than it has to. If you have been needing a replacement engine, then you can find one that will work for you out of eBay's many reasonably priced new or used MerCruiser 3.0-liter engines for sale. Just imagine the day when you get to pull away from the dock again to cruise on the open waters thanks to your newly installed MerCruiser 3.0-liter engine.

Specifications of the MerCruiser 3.0-liter engine

A 3.0-liter MerCruiser comes powered by a dual-barrel carburetor motor that produces 140 horsepower at 4,800 rpm and 177 pound-feet of torque at 3,600 rpm. These engines are built specifically for marine use so you can rest assured that everything from the oil pan to the spark plugs is designed to keep your craft running on the open waters.

How do you know if this is replacement will work for your boat?

Here are some things you will need to take into account when you are looking for a replacement engine to make sure you get one that works for you:

  • 1990 and newer - MerCruiser or Volvo Penta 3.0-liter models are a direct fit for the MerCruiser 3.0-liter engines. The exceptions are if you have a 1990-1997 MerCruiser, Volvo Penta, or OMC 3.0-liter with a single rear main seal. If you have one of these models, then you will need to reuse your current flywheel.
  • 1990 and older - Anything made before the year 1990 will require a few additional parts. If you are replacing a 2.5- or 3.0-liter engine, then you will need to use the same flywheel as the type that comes in 1990 and newer dual-piece rear main seal engines. You may also need an engine coupler for pre-1985 MerCruiser and pre-1990 OMC 3.0-liter engines.
What to look for when purchasing a used 3.0-liter MerCruiser

When you are considering a used MerCruiser 3.0-liter engine for sale, you will want to ask why it is being sold and what repairs might be needed so that you have a good idea of what other costs may come up. Some people decide to switch out engines if the repairs seem too costly to tackle, while others simply want to upgrade to something that has higher performance. The same replacement guidelines outlined above for pre- or post-1990 engine replacements should be used regardless of whether you are purchasing a new or used 3.0-liter MerCruiser engine.

Content provided for informational purposes only. eBay is not affiliated with or endorsed by Mercury MerCruiser.