Next Gen 5.5 kW Marine Diesel Generator

(3 customer reviews)

From: $9,986.00

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Quiet and easy to maintain, the UCM2-5.5 is a great choice for  medium size yachts.

Special Order Only. Usually ships in 1-2 weeks.

    Our rule-of-thumb is to triple the straight-line distance from the panel to the generator. Remember that up to two feet of the harness will be inside the enclosure.

SKU: NGP-UCM2-5.5 Categories: , Tag:


The NextGen UCM2-5.5 Marine Diesel Generator from Next Generation Power Engineering (NextGen) is perfect for mid-size vessels, or as a back-up for large vessels. NextGen diesel generators are well known for their reliability and ease of maintenance.

  • Mid speed operation provides low sound and vibration levels
  • Lower operating speeds to reduce sound levels and increase life expectancy
  • Fully fresh water marinized heavy duty Kubota diesel engine for trouble free operation
  • Average fuel consumption to just 3/10 GPH
  • Compact size and light-weight construction
  • Dimensions: 23″ W x 17″ D x 20″ H w/o Enclosure,  25.5″ W x 20″ D x 21″ H with Enclosure
  • Panel dimensions: 6″ W x 4″ H (basic) or 8.5″ W x 9″ H (4-gauge)
    • Gauges and start/stop switch can be remove from panel for custom installation
  • Weight: 230 lb w/o Enclosure, 270 lb with Enclosure
  • Noise Level at 7 ft [2 m]: 72 dB w/o Enclosure, 63 dB with Enclosure
  • Power output: 5.5 kW Peak, 5.0 kW Continuous

Compare with Fischer Panda 4200 Plus Specifications:

  • 3600 RPM (single cylinder engine)
  • Enclosure Dimensions: 20.5″ W x 14.6″ D x 20.5″ H
  • Panel Dimensions: 4.7″ W x 2.4″ H
  • Weight: 230 lb
  • Noise Level at 7 ft [2 m]: ~65 dB (converted from 54 dB @ 7 meters)
  • Power output: 4.1 kW Peak, 3.7 kW Continuous

The 5.5 kW Next Gen diesel generator makes a very reliable power source for off-grid cruising, or running air conditioning for a hot afternoon on the water. Quiet and easy to maintain, the UCM2-5.5 or UCM2-5.5E is a great choice for medium size yachts.

This generator offers plenty of power for most boats that use twin 30 amp shore power circuits.

Please note: If you are installing on a boat that has gasoline engines for the main propulsion, you need to order with the Ignition Protection option.

Remember to never store portable gasoline containers below deck.

Find the manufacturer’s spec sheet here: NextGen 5.5 kW Specifications

* 120/240 VAC, 4-Wire installation requires additional circuit protection

Additional information

Weight 390 lbs
Dimensions 36 × 36 × 30 in

Engine Type: Vertical, Water-Cooled 4-Cycle Diesel # of Cylinders: 2 Bore x Stroke (in): 2.64 x 2.68 Displacement (cu-in): 29.23 SAE Net Intermittent HP: 11 @ 2800 RPM Combustion System: Three Vortex Compression Ratio: 23:1 Fuel Injection Pump Type: Bosch MD Mini Pump Nozzle Type: Bosch Throttle Type Cooling System: Fresh Water Heat Exchanger Lubrication System: Forced Lubrication w/Filter Fuel: #2 Diesel Fuel Lubricating Oil Type: API Service CE or Better Lubricating Oil Capacity: 2.2 US Quarts Starting System: 12V Battery Charging System: Optional 35 Amp Fuel Inlet: 5/16" Fuel Return: 1/4" Raw Water Inlet: 5/8" Exhaust Outlet: 1-1/2" Output Voltage: 120/240 Output Amps: 46/23 Output Watts: 5500 Specifications subject to change


Cupro-Nickel Heat Exchanger Direct Driven Self-Priming Sea Water Pump Stainless Steel Water Cooled Exhaust System Air Cleaner / Intake Silencer Oil Pressure & Water Temperature Safety Shutdown Self Tensioning Drive System 120/240 Volt Generator 12V Electric Fuel Pump Extra-Resilient Four Point Isolation Mounts "Easy Drain" Oil Change Kit All Front Side Service Marine Grade Tinned Wire with Heat Shrink Terminals Remote Start Panel with Hour Meter and Harness


Output Voltage Selection 10', 20' or 30' Wire Harness Ignition Protection Certification Vented Loop Full Instrumentation Panel Fiberglass 3-Piece Sound Enclosure




UCM2-5.5, UCM2-5.5E


Special Order Only, Usually Ships in 1-2 Weeks

3 reviews for Next Gen 5.5 kW Marine Diesel Generator

  1. Gary Hodges, Corpus Christie, TX

    First class experience shopping and purchasing the generator. The generator w/sound enclosure is much quieter than I expected.

  2. Jeff Ellison, Pflugerville, TX

    Good experience, Thank you

  3. Walter Gulley

    I bought a boat with the NextGen generator 5.5Kw diesel generator in it about a month ago. The generator hd not been run in nearly 3 years, after about 30 minutes of cranking and bleeding fuel lines and a few other tricks, besides removing starter and freeing the bendix then reinstalling it it fired up and worked. It stayed running for about 5 minutes so I threw the breaker to have it power the boat. It worked and the a/c, battery charger and everything worked for another 20 minutes and then I shut it down so I can replace fuel water separator and install a new starter I ordered from the manufacturer and should be all set.

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