The 425 is designed for easy maintenance. A central accessible mechanical space provides excellent access to the primary engine, generator, water heater and air conditioners. Access is provided both under the companionway steps and through the port side aft cabin, which simplifies maintenance and inspections necessary for systems reliability. A dedicated filter locker is a unique 5 series feature. The Yanmar 57hp diesel engine is electronically controlled for improved economy and can be interfaced with Raymarine chart plotters for engine monitoring. Large capacity fuel, water and waste tanks are designed to benefit cruisers and are readily accessed. The electrical panel is high quality, hinged aluminium with space for additional breakers and equipment.