Diesel Generators 21EKOZD 60 Hz / 18EFKOZD 50 Hz
Marine Generator SetEngine Features
Decision-Maker 3500 Paralleling Controller
· Heavy-duty construction
· Certified by the Environmental Protection Agency (EPA) to conform to Tier III marine auxiliary
· Diesel fueled
· Three cylinders
· Four cycle
· Electric fuel lift pump
· Lifting eye
· A graphical display and pushbutton/rotary selector dial provide easy, local data access
· Measurements are selectable in metric or English units
· The controller supports Modbus protocol with serial bus (RS-485) or Ethernet networks
· Scrolling display shows critical data at a glance
· Graphical display of power metering (kW, kVA, V, I, PF, and VAR)
· Integrated hybrid voltage regulator providing ±0.5% regulation
· Built-in alternator thermal overload protection
|Generator Weights and Dimensions |
| ||Without Should Shield ||With Should Shield |
|Weight, kg (lb.) || || |
|Wet ||440 (970) ||480 (1059) |
|Dry ||422 (930) ||462 (1019) |
|Length, mm (in.) ||1121 (44.13) ||1197 (47.12) |
|Width, mm (in.) ||577.5 (22.74) ||652.5 (25.69) |
|Height, mm (in.) ||694 (27.31) ||711 (27.99) |
Generator FeaturesOptional Accessories
· Remote start 12-pin connector
· Class H insulation
· Single phase and three phase models available
· Voltage regulation of ±1.0%
· Radio suppression
· Outstanding motor-starting capability
· Directly connected to the engine, the generator has sealed precision ball bearings with a precision-machined steel sleeve in the end bracket to prevent shaft misalignment and extend bearing life.
· Aluminum sound shield
· Remote digital gauge
· Remote digital display
· Siphon break
· Circuit breakers
|Engine specifications ||60 Hz ||50 Hz |
|Type ||4 cycle, naturally aspirated |
|Cylinder, quantity ||4 |
|Displacement, L (cu. in.) ||2.5 (151) |
|Bore and stroke, mm (in.) ||88 x 102 (3.46 x 4.02) |
|Compression ratio ||17:1 |
|Combustion system ||Direct injection |
|Rated rpm ||1800 ||1500 |
|Max. power at rated rpm, HP ||38.7 ||34.1 |
|Governor, type ||Mechanical |
|Frequency regulation, mechanical governor: |
|No load to full load (droop) ||5% |
|Steady state ||±0.7% |
|Angular operation: |
|Instant (1 min.) ||35º |
|Intermittent (30 min.) ||25º |
|Engine electrical system ||60 Hz ||50 Hz |
|Battery, voltage ||12 or 24 volt |
|Battery charging module ||10-amp |
|Battery, minimum recommendation ||650 CCA @ 0ºF |
|Starter motor ||
2 kW, 12 V |
2.5 kW, 24 V
|Cooling System ||60 Hz ||50 Hz |
|Capacity, L (qt.), approx. ||4.4 (4.6) |
|Heat exchanger type ||2.5 in. dia. x 2 pass |
|Seawater pump type ||
|Heat rejected to cooling water at rated kW, wet exhaust, kW (Btu/min.) ||18.5 (1050) ||23 (1300) |
|Engine water pump flow, Lpm (gpm) ||53 (14) ||47 (12) |
|Seawater pump flow, Lpm (gpm) ||30 (8) ||27 (7.15) |
|Fuel System ||60 Hz ||50 Hz |
|Fuel shutoff solenoid ||Electric |
|Fuel pump ||Electric |
|Maximum recommended fuel lift, m (ft.) ||1.2 (4.0) |
|Lubricating system ||60 Hz ||50 Hz |
|Oil pan capacity with filter, L (qt.) ||11 (11.6) |
|Oil pump type ||Pressure, trochoid pump |
Thank you for considering our large selection of products!
Our goal is to bring you the best quality for your Marine needs.
“Keeping an excellent reputation is our lifetime commitment”
Our expert technicians can also provide installations. Please contact us for pricing.
We can ship to virtually any address in the world. There are restrictions on some products and some products cannot be shipped to international destinations.
Promotional Shipping (e.g., free shipping) is only applied to orders shipped within the contiguous United States and does not apply to Alaska, Hawaii, Puerto Rico or the US Virgin Islands.
All shipments to Alaska or Hawaii and any other territories under the control of the United States may incur additional shipping charges based upon the weight of the package. Due to the distance, shipments will take a minimum of 5 business days to arrive.
Expedited shipping costs displayed on our website are only an estimate. You will be notified if the actual shipping cost exceeds the estimated shipping cost. We will never charge an increased shipping fee without your consent!
You may return most new, unopened items within 30 days of the delivery for a refund, returns made within 30 days of purchase will be refunded to the original form of payment. Returns initiated beyond 30 days of delivery will only be granted MABRU POWER SYSTEMS (MABRU STORE) credit. A 30% RESTOCKING FEE WILL BE APPLIED TO ALL RETURNS. We reserve the right to refuse returns or assess additional fees at our discretion, if the merchandise is not in the original packaging and ready-to-be-sold condition.
If you need to return an item, please Contact Us with your order number and details about the item. We will respond with instructions on how to return the item(s). Please ensure the item(s) are returned in its original packaging and properly secured for return shipment. Insurance MUST be applied to your return and tracking information of your return must be supplied to MABRU POWER SYSTEMS (MABRU STORE) via email at
We thoroughly inspect each item(s) prior to shipment to ensure and guarantee that the item(s) is free of any cosmetic damages and/or missing parts. While we take extra measures to ensure safe and secure shipment of your product, issues during shipment – while rare – are possible.
Upon receiving shipments from MABRU POWER SYSTEMS (MABRU STORE) and our partner shipping carriers, it is critical that you IMMEDIATELY inspect the package for damage PRIOR to signing for it and before accepting delivery from the carrier. If any damage is present, it MUST be noted on the carriers slip and reported to MABRU POWER SYSTEMS (MABRU STORE) IMMEDIATELY. If damage is discovered after accepting a shipment, it MUST be reported to MABRU POWER SYSTEMS (MABRU STORE) within 72 hours of the delivery. In the event that damage is reported beyond 72 hours of delivery, MABRU POWER SYSTEMS (MABRU STORE) will not accept any responsibility in replacing and/or further servicing your order.
It is imperative that you document the damage(s), this means photos of the exterior of the box MUST be supplied along with photos of the visible damage(s). It is crucial that ALL packaging- the bubble wrap, the box and pallet be saved, as required by the insurance company to file and successfully submit a claim of damage.
We will replace defective products with an exchange for the same model and style ONLY.
If your parcel is left without a signature and damage is found, please contact us within 48 hours at (954) 467-1770 or via email at
Your package should be unopened, unused and remain in the condition in which it was delivered until you successfully report a claim with MABRU POWER SYSTEMS (MABRU STORE).
Return on Electronics – Serial Number Policy
On returns of all electronics, serial numbers must match with serial number of product originally shipped and will undergo inspection; if serial numbers are not matching, a refund will not be issued.