This brand-new Evinrude V4 lower unit is precision-engineered to replace the original gearcase on Johnson and Evinrude V4 lower unit manufactured between 1978 and 1998. It is designed for models that use the 4-1/8″ bullet diameter, a common specification across many V4 two-stroke engines, including popular configurations like the 115 HP Johnson V4, Evinrude V4 crossflow, and loop-charged models.

Years –  1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 197, 1998

Built to OEM specifications but offered at a more cost-effective price, this unit is a solution for those needing a Johnson 115 lower unit, Evinrude outboard gearcase. It is a drop-in replacement that matches all critical connection points, ensuring compatibility with existing prop shafts, shift linkages, and water pump housings.

If you’ve experienced cavitation, water intrusion, or gear failure in your original gearcase, this unit provides a fresh start with a new, non-OEM alternative. It’s perfect for boaters looking to replace their lower unit without the price tag of OEM parts. Each unit arrives fully assembled, ready to install.

Before ordering, be sure to compare your original gearcase’s specs — including bullet diameter and shaft configuration — or contact us with your engine serial number for confirmation. This lower unit is not compatible with models outside the 4-1/8″ spec range.

Get the right lower unit for your outboard when you call us today. Take the guess work out of ordering online.