Mercury 5.7L Scorpion EC Long Block Assembly 866138A05

Mercury 5.7L Scorpion EC Long Block Assembly 866138A05 is a genuine Mercury OEM replacement long block designed for compatible MerCruiser 5.7L Scorpion EC engines. A long block assembly provides the core engine components needed for a major engine replacement or rebuild while allowing many external accessories and components to be transferred from the original engine.

Compatible with the following:

• MerCruiser 5.7L Scorpion EC engines

Manufactured to Mercury Marine's OEM specifications, this long block assembly is engineered for proper fit, durability, and dependable performance. Using a genuine Mercury replacement long block helps restore original engine performance while maintaining the reliability and quality expected from OEM components.

A long block is an excellent solution when significant internal engine damage has occurred but reusable external components remain in good condition. Always refer to the appropriate service manual for installation procedures and any additional components required to complete the engine assembly.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.