This marine HEI electronic distributor is perfect for those looking to upgrade their inboard engine. It is designed for use with 350 454 V8 65K Coil Mercruiser OMC 7.4 5.0 5.7 engines, and is made by the A-Team By Southwest Performance Parts. This item comes with no warranty.  The HEI000R-M distributor is a reliable and durable choice for anyone looking to improve their boat's ignition and starting system. It is easy to install and provides superior performance to your engine. Don't miss out on this opportunity to take your boat's engine to the next level.  Brand New-Open Box.