Class A motorhomes are the largest drivable RVs — the bus-shaped coaches built on a heavy-duty chassis. Here’s how they differ from Class B and C motorhomes, and what they need to stay on the road.
How Class A compares
- Class A — built on a commercial truck or bus chassis with a flat front; typically the largest and most spacious
- Class B — camper vans built inside a van body, such as a Mercedes Sprinter
- Class C — built on a cutaway van or truck chassis, often with a cabover bed
Gas vs. diesel pushers
Gas Class A coaches have the engine in front. Diesel pushers place the diesel engine in the rear, which tends to mean more torque for climbing and towing, a quieter cab and often air brakes and air suspension.
What they need
- Chassis service: oil, filters, fluids, brakes and suspension
- Generator service
- Roof, cap and slide seal inspections — Class A roofs and front caps are large
- Tire inspections by age and load
- Leveling jacks and slide-out maintenance
We service them every day
Gas and diesel Class A coaches from Newmar, Tiffin, Thor, Winnebago, Fleetwood, Monaco, American Coach and more. See RV repair and maintenance.
Frequently asked questions
Is a Class A hard to drive?
It takes practice, especially with tail swing and height, but many owners adapt quickly.
Do diesel pushers cost more to maintain?
Diesel service items can cost more, though diesels are built for long service lives.
Do you service diesel pushers?
Yes.
Need help with this? See our RV repair and maintenance service, call (949) 830-1996, or request an appointment. Appointments are available Monday through Friday, and Saturday appointments begin January 1, 2027.
Have a question about your RV?
Our service advisors answer the phone — and we put the estimate in writing before any work.
