Current lead times are 1 week.

Central Maine Diesel Inc. (“CMD”) is not affiliated with, sponsored by or otherwise associated with American Honda Motor Company, Inc. (“American Honda”). We purchase genuine Honda® engines and assemble the generator. Honda® is a registered trademark of American Honda.

Our Reduced Price:$

  15,000 Watt Propane/Natural Gas Generator - This unit is suitable for standby power or emergency use and has plenty of power to run your home, job site or business. The generator's simple, compact design allows for easy installation in a variety of applications requiring a small footprint and can be anchored to a concrete pad or operated free standing.

Propane/Natural Gas.
Clean burning, long engine life.

This unit features a Honda GX 690 V-Twin propane/natural gas engine, brushless generator, residential grade muffler, oil pressure shutdown, large capacity automotive style air cleaner, receptacle panel with 120 V and 240 V outlets, welded steel skid frame, vibration isolator mounts, battery cables, 3 year warranty and electric start.


Options   Price
Filter Kit (Oil, Air & Spark Plugs)+ $99
Two-Wire Auto Start+ $495
Low Pressure Regulator (for LP Tank) w/ Hose+ $89
3 Phase Upgrade + $295
50 Hz operation+ $150

Maximum Output 15,000 watts
Continous Output 13,500 watts
Load Amperage at 120 volts ---
Maximum Load 125 Amps
Continous Load 112.5 Amps
Load Amperage at 240 volts ---
Maximum Load 62.5 Amps
Continous Load 56.2 Amps
Sound Level @ 23 ft 74 dB(A)

Model Honda GX 690
Type 4 Stroke, OHV, V-Twin
Displacement 688 cc
Oil Capacity (w/ Oil Filter) Approx. 2 qts
Lubrication System Full Pressure
Oil Filter Automotive, Spin On Style
Oil Alert LED Standard
Cylinder Block Aluminum w/ Cast Iron Sleeves
Bore & Stroke 3.1" x 2.8"
Exhaust Outlet 1 1/4" OD Muffler
Fuel LP/Natural Gas
Starting System Electric

Consumption at 1/2 load 1.3 gallons/hour
Consumption at 3/4 load 1.6 gallons/hour
Consumption at full load 1.9 gallons/hour

Power Output Panel   
Main Line Circuit Breaker 50 Amp
120/240 VAC NEMA#L14-50R 1-50 Amp

Installation Data   
Fuel Inlet Hose Size 3/8"
Fuel Fitting 3/8" FNPT
Fuel Inlet Pressure 11-14" Water Column
Minimum Power Lead Size 0-50 Feet: 6 AWG
51-100 Feet: 4 AWG
No. Power Lead Conductors 4
Exhaust Outlet 1 1/4" OD Muffler Outlet
Battery Type 12 VDC - 400 CCA
Engine Oil Type 10W-30 Synthetic
Exhaust Location & Direction
(Facing Engine)
Service Points
(Facing Engine)
Oil Fill Cap: Right-Side
Oil Filter: Left-Side
Fuel Inlet: Left-Side
Power Output: Right-Side
Control Panel: Right-Side
Air Filter: Front-Side

Maintenance Schedule   
Replace Oil Filter 300 hours / 12 months
Replace Air Filter 300 Hours / 12 months
Replace Spark Plug 300 Hours / 12 months
Exercise Generator Under Load Once each month
Change Oil 200 hours / 6 months

Engine Warranty 3 Years
Generator Warranty 2 Years
100% Coverage for Parts & Labor Standard

Length 30"
Width 21-1/2"
Height 21"
Dry weight 245 lbs


E-Mail Address:  

Central Maine Diesel
29 Carey Circle
Hampden, ME 04444

Phone: 1-207-941-1188
Fax: 1-207-941-1189

Copyright © 2018 Central Maine Diesel Inc. All rights reserved.