As the original equipment manufacturer, Mercury has the benefit of engineering resources and the experience to remanufacture a true marine‑based engine. Every Pro‑Series Longblock is completely remanufactured with components suitable for marine applications. So if you're looking for an entire engine longblock replacement this is the place to look.
With a 3 Year Factory Limited Warranty, Pro‑Series Longblocks from Mercury Remanufacturing can be installed with complete confidence. Major Assembly Protection is also available from Mercury Product Protection. NOTE: When replacing an inboard longblock, it may be necessary to transfer the original Aluminum Oil Pan to the replacement block for additional corrosion protection and to ensure a proper dipstick location.
If the engine is equipped with an oil cooler, the oil cooler must be replaced in order to prevent the probability of a premature internal engine failure.
NOTE: If the cooler is not replaced, the longblock will not be eligible for warranty consideration. If an internal engine failure should occur that is eligible for warranty consideration, a copy of the invoice indicating the purchase of an original type OEM oil cooler is required.
Gasket Set SOLD SEPARATELY with Pro‑Series Longblocks
Mercury charges a core/container deposit (see shopping cart).
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