Generadores Cummins Onan para vehículos recreativos

What sizes of Cummins Onan RV generators are available?

This collection covers the Onan lineup commonly installed in motorhomes and travel trailers, including the QG 2800, QG 4000, QG 5500, QG 7000, and the portable P4500i inverter generator. Output ranges from roughly 2.5 kW for smaller gas units up to 12.5 kW for diesel models built for larger Class A coaches. Match the generator size to your total amp draw at peak load, typically the rooftop AC plus the converter, microwave, and any residential refrigerator running at once.

What is the difference between Onan gas, LP, and diesel RV generators?

Gas Onan generators (QG 2500, QG 4000) run off your vehicle fuel tank and are common in gas Class A and Class C coaches. LP models (KY series, Microquiet) draw from the RV propane tank and pair well with travel trailers and fifth wheels that already store LP for the furnace and stove. Diesel units (QD 3200, QD 6000, QD 8000, QD 12500) tie into the chassis diesel tank on diesel pushers and put out more sustained power per gallon. Pick the fuel type that matches what your coach already carries.

How do I find the right replacement parts for my Onan generator?

Pull the spec label on the generator housing and record the full model number and serial number before ordering. Onan model numbers encode the kW rating, fuel type, and spec letter, all of which affect which carburetor, control board, or starter fits. For supporting electrical work on the rest of the rig, see our RV electronics collection and RV plug adapters for shore power and transfer switch accessories.

Can an Onan portable generator run my RV air conditioner?

The Onan P4500i puts out 4,500 starting watts and 3,700 running watts, enough to start and run a single 13,500 or 15,000 BTU rooftop AC on most rigs, especially with a soft start kit installed. Running two ACs at once requires a larger built-in unit such as the QG 5500 or QG 7000. If you are also planning seasonal storage prep, our RV winterizing kits cover the fuel stabilizer and system flush steps Onan recommends before extended layup.

Does United RV Parts ship Cummins Onan generators, and is there freight cost?

Built-in Onan generators ship via truck freight due to weight and size, with freight cost shown on the product page before checkout. The portable P4500i ships standard ground. Orders over $100 on parts and accessories qualify for free shipping. If you need help confirming the right model for your coach or sourcing a hard-to-find spec letter, text or call our team at 817-984-1852.