Class A Diesel Pusher for Sale at MHSRV - The World's Leading RV Specialists

Diesel Pusher RV FAQs

What is a diesel pusher RV?

A diesel pusher is a Class A motorhome with the diesel engine mounted at the rear of the coach, "pushing" the chassis from behind. Most diesel pushers use Cummins diesel engines (B6.7, L9, or X15 depending on tier and length) paired with Allison automatic transmissions, on Freightliner, Spartan, or Tiffin PowerGlide chassis platforms. The rear-engine layout makes the cabin quieter than a front-engine gas Class A, since the engine sits behind the driver rather than under the doghouse. Diesel pushers typically come standard with full air ride suspension and full air brakes, plus an exhaust or compression engine brake for descending grades.

What's the difference between a diesel pusher and a gas Class A?

A gas Class A has the gasoline engine at the front of the coach, typically a Ford 7.3L V-8 on the Ford F-53 chassis. A diesel pusher has the diesel engine at the rear. The differences go beyond engine placement. Diesel pushers generally come with full air ride suspension and air brakes, versus leaf springs and hydraulic brakes on most gas Class A products. They carry higher tow ratings, commonly 10,000 pounds or more versus the 5,000 pounds typical on gas. They also offer longer engine service life and a more refined long-distance ride. Gas Class A motorhomes cost meaningfully less, need simpler routine maintenance, and can be serviced at Ford dealerships nationwide. Planning long-haul travel, mountain grades, or full-time living? Choose a diesel pusher. Prioritizing price and shorter trips? Choose gas Class A.

How long does a diesel pusher engine last?

Diesel pusher engines routinely run 300,000 miles or more with proper maintenance. The Cummins B6.7, L9, and X15 are commercial-grade diesels designed for long-haul truck duty cycles. Motorhome use adds miles slowly, so it puts comparatively light demands on them. The chassis components (Allison transmissions, Freightliner air brake systems, Spartan air suspension) are engineered for similarly long service life. What that means for you: a well-maintained used diesel pusher can still have substantial useful life left at high mileage. That's a real difference from gas Class A products, where engine and transmission life tends to limit long-term ownership.

How much can a diesel pusher tow?

Most diesel pushers come standard with 10,000-pound trailer hitches. Higher-tier coaches step up to 15,000-pound or 20,000-pound hitches on the flagships. That compares to the 5,000-pound hitch typical on gas Class A motorhomes. Combined with the higher GVWR and GCWR, that makes diesel pushers a strong fit for towing larger enclosed trailers, multi-vehicle setups, boats, or heavier toad vehicles. Always confirm the specific hitch rating and GCWR for the floor plan you're considering. Towing capacity varies by chassis configuration and length.

Does a diesel pusher come in a bunk model floor plan?

Bunk-equipped diesel pusher floor plans exist but are relatively rare, since the typical diesel pusher buyer is a couple or full-time traveler rather than a family. Notable bunk-equipped diesel pushers at MHSRV include the Tiffin Allegro Red (dedicated rear passenger-side bunk beds, sleeps up to 8) and the Tiffin Byway (dedicated rear bunks plus two full bathrooms). For broader bunk-equipped options across other RV categories, see bunk model RVs at MHSRV.

What chassis brands are used on diesel pushers?

The three major diesel pusher chassis makers are Freightliner (the XCR, XCS, and XSH platforms, used across multiple brands), Spartan (the K2, K3, and K4 platforms, used mainly on Entegra and Foretravel products), and Tiffin's own PowerGlide XC chassis (used on the Tiffin Phaeton and Allegro Bus). All three pair Cummins diesel engines (B6.7, L9, or X15) with Allison automatic transmissions, full air brakes, and air ride suspension. Specific setups vary by tier. Entry-tier diesel pushers typically use leaf-spring front suspension with air-ride rear. Flagship coaches use independent front suspension (IFS) with full air ride on all axles.

Where can I buy a diesel pusher RV?

Motor Home Specialist in Alvarado, Texas is the #1 volume-selling motor home dealer in the world and stocks one of the largest selections of new and used Class A diesel pusher motorhomes for sale anywhere in the country. MHSRV is a full-line dealer for most of the major diesel pusher manufacturers (Tiffin, Entegra, Foretravel, Fleetwood, Holiday Rambler, Thor, Forest River, American Coach, Sportscoach, Winnebago) and serves diesel pusher buyers nationwide, with in-house financing, trade-ins, and full-service support after the sale.