The Navigator Isuzu or NI Series marine diesel generator uses the powerful and dependable Isuzu Diesel Engine. These generator units are heat exchanger cooled, water cooled exhaust, brushless generator with AVR (automatic voltage regulator) and a remote mounted control panel. These units also include automatic shutdowns, overflow bottle, washable long life air filter, interlocking rubber isolation mounts, stainless steel drip pan, oil drain kit, belt guard, buddy box, and painted “Ultra White” with polyurethane. This engine series is able to produce power ratings from 4-21 kW at 60 Hz.

4N* is raw water cooled, 3600 RPM at 60 Hz, and doesn't include a buddy box, belt guard, AVR or overflow.