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Cummins Onan RV QD 12500 - RV QD12500 - 12.5kW RV Generator (Diesel) for sale.

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Cummins Onan RV QD12500 - 12.5kW RV Generator (Diesel)

(Based on expert analysis, manufacturer ratings and customer reviews)

4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5
2 Reviews
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Ships in 4-7 Business Days

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Free Freight$11,099.00
No Sales Tax*
(Except IL)
Free Freight$11,099.00
No Sales Tax*
(Except IL)
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Run Watts
Rated Watts
120/240 Single-Phase

Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

12.5 kW Diesel Powered RV Generator (Model 11506)
Designed for Type A RVs w/ 3 AC units (50A 2-Pole Breaker)
Runs 3 15,000 BTU AC units w/ 5000 additional watts available

Cummins Onan 1647cc Liquid-Cooled Diesel Engine
Automatic timed glow plugs for quick & easy starting
Elec. fuel pump w/ full oil & fuel filter (.48 Gal/h @ 1/2 Load)

Microprocessor Controlled
Self-diagnostic capability to simplify troubleshooting

High Quality, Pure Sine Wave Electrical Output
Digital voltage regulator prevents damaging spikes

Computer-Controlled Variable Speed Operation
Matches engine speed to load demand, minimizes noise levels

Sound-Attenuating Design w/ USDA Approved Spark-Arrestor Muffler
Lowers noise levels while providing cross-flow cooling

Three-Point, Fully Focalized Mounting System
Reduces vibration for quieter operation
Stationary exhaust pipe connection point for easy installation

Integrated Generator Set & Engine Control
Provides user friendly controls and safety features

3 Year / 2000 Hour Warranty (Please See Warranty Sheet)
Engine Brand
Cummins Onan
Starting System
12-Volt Button Start
27 HP
1647 CC
Consumer Engine Warranty
3 Years
Low Oil Alert/Shutdown
Product Specs
120/240 Single-Phase
60 Hertz
Auto Voltage Regulation
Rated Watts
12500 Watts
Fuel Type
Rated Amps
52 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
(68 @ 3M - Half Load) db(A)
Hour Meter
Min. Air Outlet - Bottom
15" x 16"
Min. Air Inlet - Front
19" x 12"
770 Pounds
Product Length
41.4 Inches
Product Width
24.5 Inches
Product Height
27 Inches
Consumer Warranty
3 Years
RV QD 12500

*Ask Mike about the Cummins Onan RV QD 12500. Sorry, no repair questions:




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  1 Question
Q: I RV and know how much other people hate when you run your generator because of the noise. How much quieter have they become? I am looking at the onan 12500w
by Linda Walsh from New Hampshire on August 06, 2012

A: I would say that sound levels have been reduced significantly over the years. The Cummins Onan RV QD12500 is one of your higher quality units out there and is rated at 68 db(A) @ 3M - Half Load. Per the product specs, it also meets national Park Service Requirements (60 db(A) @ 50Ft) for national park use and typical installation will further reduce sound levels.
by Mike, Product Expert
Cummins Onan RV QD 12500 Reviews & Ratings
2 Reviews  Sort by 
Mike, the Generator Expert
Power Equipment Expert

Product Expert
Total Reviews
103 Reviews
Total Helpful Votes
8713 Helpful Votes
Power Equipment Direct Recommended

If you are thinking about buying an RV generator from us, you are most likely replacing an existing generator which was probably an Onan.

Most customers coming to us have an Onan RV generator in their RV now. We always like the motto, "If it isn't broken, why fix it"? But in this case, yours is probably broken, which is why you are looking to buy a new one.

Did you have years of reliable service and creature comforts in your RV because of your old Onan RV generator?

Well,... more
Mike Recommends This Model
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Tom C.
Pacific Palisades, CA
Total Reviews
2 Reviews
4 out of 54 out of 54 out of 54 out of 54 out of 5
"quiet Diesel"
While Onan advertises these generators as quiet, their cooling fans put out noise to the point that if you're in a quiet campground can be irritating. And servicing in the cabinet can be challenging.
Tom Recommends This Cummins Onan Product
Was this review helpful?
Free Freight
  • Ships via Semi-Truck
  • Curb Side Delivery
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii, Wisconsin, North Dakota, Indiana or any destination outside of the United States
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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Buy Cummins Onan RV QD12500 - 12.5kW RV Generator (Diesel) at Power Equipment Direct. Read reviews and articles. Wide Selection of accessories available, including Cummins Onan 10' Remote Wiring Harness for Diesel RV Generators, Cummins Onan 30' Remote Wiring Harness For Diesel RV Generators and Cummins Onan Basic Remote Start Panel For 6-12.5kW Diesel RV Generators.

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