Onan·Cummins·Authorized Service
The onboard generator is the difference between a good trip and a hot, dark night at the campground. Banner Electric installs, swaps, services, and repairs Cummins Onan RV generators — in-shop in Plymouth, IN, or mobile across central and northern Indiana.
Onan / Cummins· In-Shop & Mobile· 60+ Years in Business
Class B·Class C·Class A Gas·Class A Diesel Pusher
Whether the coach came off the dealer lot without a genset, the old unit finally gave up, or you just need a diagnostic before the next trip — we’ve got the right work order for it.
Bay was empty from the factory, or you’re upgrading from portable power to hardwired onboard. We handle the mount, fuel line, exhaust, transfer switch, and control panel — turnkey.
Turnkey · From Empty BayOld genset failed, tired, or just noisy? Bring the coach to Plymouth. We pull the failed unit, install the current-gen replacement, retie the fuel and exhaust, and load-test before you leave.
Plymouth, IN ShopCoach parked at home, storage, or a campground? For diagnostic work, tune-ups, brush replacements, and most repairs, our van comes to you across central IN and Michiana.
Central IN + MichianaWon’t start, won’t hold voltage, throws a code, or making a new noise? We diagnose Onan units end-to-end — carb, fuel pump, control board, brushes, AVR, ATS, and everything in between.
Code Reads · Seasonal ServiceOnan — owned by Cummins — is the OEM in almost every North American motorhome. Here’s the current catalog, from the little QG 2800i for Class B vans up to the QD 8000 diesel inverter in the biggest Class A pushers.
Family 1 of 2 — Gasoline & LP
The gas and propane workhorse family. Air-cooled, inverter-based, and factory-standard on almost every gas motorhome from Class B up through big Class A gas coaches.
Onan QG Series
2.8 kW
QG 2800i (2.5 LP)
The quietest one in the lineup. Inverter-based, variable-speed, and clean enough for laptops and residential fridges. Runs one 13,500 BTU rooftop A/C without breaking a sweat.
Onan QG Series
4.0 kW
QG 4000 / QG 3600 LP
The best-selling mid-size RV genset ever made. Steel enclosure, single-cylinder OHV, sealed connectors, self-diagnostics. If your Class C came from the factory with a genset, odds are it’s a QG 4000.
Onan QG Series
4.0 kW
QG 4000i EFI
Same coach, cleaner power. The inverter version of the 4000 — quieter, cleaner sine wave, no fuel return line, and EFI fuel injection instead of a carb. A common upgrade path from an older QG 4000.
Onan QG Series
5.5 kW
QG 5500 EVAP
Two air conditioners, all day. The step up from the 4000 for mid to large gas motorhomes. Twin-cylinder engine, digital voltage regulation, and enough capacity to run two rooftop A/Cs plus loads.
Onan QG Series
7.0 kW
QG 7000 / QG 7000i DF
The big gas coach flagship. Two AC units with power to spare, low vibration, integrated muffler enclosure. The 7000i DF adds dual-fuel (gas or LP) and inverter output for the newest coaches.
Family 2 of 2 — Diesel
Liquid-cooled diesel inverter generators for Class A diesel pushers and high-end Class C diesels. Runs off the coach’s main fuel tank, so full tank = long-run capacity.
Onan QD Series
6.0 kW
QD 6000 (6.0HDKAV)
Entry into diesel pusher power. Feeds off the coach’s diesel tank, no separate fuel system. Runs two rooftop A/Cs plus loads, with dramatically longer run-time-per-gallon than a gas 5.5.
Onan QD Series
8.0 kW
QD 8000 (8.0HDKAK)
The diesel pusher flagship. Liquid-cooled inverter genset, clean sine-wave output, three-cylinder Kubota engine. This is what runs the big luxury coaches all night with residential loads on board.
Most RV shops treat generators as an afterthought. We’re a working commercial and industrial electrical contractor — the same crew that installs whole-home Kohler standby power and paralleled commercial systems — and we bring that discipline to every RV.
We don’t make you fill out five forms and wait a week. Here’s the actual path from “my genset died” to “the coach is running.”
01
Call or Quote Request
Tell us the coach year, make, and what’s in the bay today. We’ll know within a call whether this is a swap, a repair, or a full new install.
02
Walkaround & Firm Quote
Bring the coach to Plymouth or we come to you. Fifteen-minute walkaround, and we hand you a written, itemized quote — parts, labor, and timing.
03
Schedule & Install
You approve the quote, we lock in a bay date. Most swaps are a one-day-in / one-day-out job. New installs and diesel jobs run longer — we’ll tell you upfront.
04
Load Test & Handoff
Every unit gets a live load test with both A/Cs cycled before you drive off. We walk you through the new control panel, exercise schedule, and warranty paperwork on the spot.
Fill this out and a Banner specialist will follow up within one business day. Or call (574) 936-9715 right now.
