Next Gen 3.5 kW Marine Diesel Generator

(3 customer reviews)

From: Original price was: $11,350.50.Current price is: $8,856.00.

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Quiet and easy to maintain, the UCM1-3.5 is a great choice for small to 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-UCM1-3.5 Categories: , Tag:


The NextGen UCM1-3.5 Marine Diesel Generator from Next Generation Power Engineering (NextGen) is one of the lightest, most compact and efficient diesel gen-sets in its class. 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 2/10 GPH
  • Ultra compact size and light-weight construction
  • Dimensions: 28″ W x 15.5″ D x 15″ H w/o Enclosure,  30″ W x 18″ D x 16.5″ H with Enclosure
  • Panel dimensions: 6″ W x 4″ H
  • Weight: 160 lb w/o Enclosure, 200 lb with Enclosure
  • Noise Level at 7 ft [2 m]: 72 dB w/o Enclosure, 63 dB with Enclosure
  • Power output: 3.5 kW Peak, 3.2 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 Next Gen 3.5 kW marine 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 UCM1-3.5 is a great choice for small to medium size yachts. The NextGen 3.5 may be a good replacement for a Fisher Panda 4200/4000, but is almost 10 inches wider so check your installation space.

Simple to maintain, and easy on the wallet, this is a great little genset for smaller vessels.

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 3.5 kW Specifications

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

Additional information

Weight 280 lbs
Dimensions 36 × 36 × 30 in

Engine Type: Vertical, Water-Cooled 4-Cycle Diesel # of Cylinders: 1 Bore x Stroke (in): 2.95 x 2.76 Displacement (cu-in): 18.86 SAE Net Intermittent HP: 7 @ 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 by Trochoid Pump Fuel: #2 Diesel Fuel Lubricating Oil Type: API Service CE or Better Lubricating Oil Capacity: 1.0 US Quarts Starting System: 12V Battery Charging System: None Fuel Inlet: 5/16" Fuel Return: 1/4" Raw Water Inlet: 5/8" Exhaust Outlet: 1-1/2" Output Voltage: 120/240 Output Amps: 30/15 Output Watts: 3500 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 Fiberglass 3-Piece Sound Enclosure




UCM1-3.5, UCM1-3.5E


Special Order Only, Usually Ships in 1-2 Weeks

3 reviews for Next Gen 3.5 kW Marine Diesel Generator

  1. Travis Larson, Key West

    Great Experience!
    Working with Tim at Boundless Outfitters was a great experience. I ordered a new generator. Tim kept me informed of the entire process.

  2. William Pfleeger, Gulfport, MS

    Next Gen UCM1-3.5E Marine Diesel Generator
    Light weight 3.5kw generator so was able to get it down the pier and into the engine room of my Morgan Classic 41 with the help of 3 of my pier mates and some careful planning. The install manual needs some updating but when I had questions my calls to Next Gen were picked up and got answers immediately. The little 1 cylinder Kubota started instantly on the first try. I’m amazed at how little vibration there is. Runs my 16000 btu reverse cycle ac, battery charger and microwave no problem. Purchased with the sound shield and the noise level, according to my wife, is acceptable.

  3. Alex, New Orleans, LA

    3.5kw Next Gen
    Love this genset! After tons of research and planning, we got the next gen 3.5. Runs the 16000 btu, charger, and water heater, plus fans and lights. We installed it behind our main engine in the engine room, and with the sound enclosure, it’s a low hum. I sleep better with it on than off! Make sure you plan how to get it on the boat and install it. Only took 3 of us to get inside boat with block and tackle on boom. Tim is the best too! He answers all my questions quickly. Thanks y’all!

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