Permanent-Mount Power Solutions for Off-Grid RV Use

California RV Specialists installs Onan RV generators and integrates complete off-grid power systems for motorhomes, fifth wheels, travel trailers, truck campers and specialty mobile applications. Whether you need dependable AC power for long-term boondocking, backup power protection, or full system integration with solar + lithium — we can design and install the right setup.

We are Northern California’s leading specialists for off-grid RV power systems. Our team installs:

  • Fixed-mounted Onan RV generators
  • RV solar charging systems
  • RV inverter + charger systems
  • Lithium battery upgrades
  • Battery monitors & power management controls

From Class A and C motorhomes — to fifth wheels, travel trailers, truck campers, camper-vans, food trucks, food trailers, and emergency support vehicles — we build complete, reliable, properly engineered power solutions.

Our installations are performed by experienced RV technicians who understand real world RV failures, system loading demands, ventilation requirements, vibration isolation, and proper system protection.


Please note that we don’t provide generator maintenance.


Make the most of your vacation with a fixed-mount RV generator


Don’t miss out on your vacation because of these common issues

  • Lost power – Your generator runs out of gas or fails when too many appliances are running, disrupting your relaxing vacation.
  • Lost vacation and family time – Setting up a portable generator can be complicated and time consuming. It also takes up precious RV space along with the cans of gas it requires.
  • Disrupted peace – Generators that are fixed-mounted in your RV are enclosed and quieter than other power sources so you can enjoy the peace and quiet.

Cummins Onan RV Generators Quiet

ONAN QG 2500I LP

  • Type: On Board
  • Fuel Type: Liquid Propane Gas
  • AC Running Watts: 2500 Watt
  • Rated Voltage: 120 Volt
  • Max AC Current (Amps): 20.8 Amp
  • Phase: Single Phase
  • Lower vibration levels – 89% better at full load
  • Lower noise levels – 63dB at no load
  • Pure sine wave inverter output

ONAN QG 4000 LP

  • Type: On Board
  • Fuel Type: Liquid Propane Gas
  • AC Running Watts: 3600 Watt
  • Inverter Equipped: No
  • EPA Certified: Yes
  • Rated Voltage: 120 Volt
  • Automatic Low Oil Shutdown: Yes
  • Choke Type: Automatic
  • Displacement (CC): 304 CC
  • Weight Dry: 172 Pound
  • Warranty: 3 Years Limited Warranty
  • Wheels: Without Wheels
  • Length (IN): 30 Inch
  • Width (IN): 19-3/4 Inch
  • Height (IN): 14-1/2 Inch
  • Engine Type: Single Cylinder, 4-Stroke, OHV, Air-Cooled
  • Max AC Current (Amps): 30 Amp

ONAN QG 5500 LP

  • Type: On Board
  • Fuel Type: Liquid Propane Gas
  • AC Running Watts: 5500 Watt
  • Inverter Equipped: No
  • EPA Certified: Yes
  • Rated Voltage: 120 Volt
  • Automatic Low Oil Shutdown: Yes
  • Choke Type: Automatic
  • Displacement (CC): 653 CC
  • Weight Dry: 288 Pound
  • Warranty: 3 Years Limited Warranty
  • Wheels: Without Wheels
  • Noise Level (Full Load): 69 Decibel
  • Length (IN): 33-1/2 Inch
  • Width (IN): 22-1/4 Inch
  • Height (IN): 16-3/4 Inch
  • Engine Type: 4-Stroke, OHV, Air-Cooled
  • Max AC Current (Amps): 45.8 Amp

ONAN ON-BOARD LP GENERATOR INSTALLATION RANGES FROM $12,500 – $18,000 more or less

INSPECTION WILL BE REQUIRED TO DETERMINE IF 5TH WHEEL CAME PRE-PREPPED FOR A GENERATOR? SOME INSTALLATION REQUIRES ADDITIONAL PARTS AND MATERIALS.

PLEASE SEE GENERAL INSTALLATION BULLET POINTS BELOW.

  • Install in front storage compartment area. The generator must not share a compartment or ventilation with batteries or fuel tanks.
  • Fabricate if needed any sub-structure for the platform or base.
  • Installation of generator and ventilation.
  • Connect to LP fuel line system.
  • Installation of exhaust kit and connections.
  • Installation of all Electrical wiring and connections as needed.
  • Installation of transfer switch and connections as needed.
  • Installation of remote controller and harness.
  • Installation of battery wiring, and connections as needed. (Additional batteries and wiring maybe required.)
  • Startup and testing method – Operate unit under load and burn off exhaust system.
  • Installation of carbon monoxide gas detector if needed. (Additional if not equipped)
  • Freight charges and shop supplies not included.

*** Please note that labor varies can be anywhere from 16 hour to 24 hours for installation depending on unit. Shop labor rate is $200.00 an hour. Please note that all generator installations are unique and shop labor is charged as a straight time operation***


The Standard in RV power. 

Please note: We only do basic maintenance and new installation! If your in need of mechanical or Internal electrical repairs, please contact your nearest Onan repair center.

Contact us to schedule a generator consultation

  • Office Phone:  209-263-7040
  • Hours of operation: 
  • 8 am to 4 pm Monday-Friday; Closed Saturday & Sunday
  • Closed for lunch 12 pm – 1 pm
  • Address:  200 S. Cherokee Lane, Lodi, CA 95240

Make sure you check out our YouTube channel for more helpful information, and other social media pages.