Prevost Bus Conversion for Sale: 2009 Marathon 1174 H3-45 (Quad-Slide)

Searching for a luxury Prevost bus conversion for sale?
Meet “Marathon 1174,” a 2009 Prevost H3-45 that blends high-gloss woodwork, modern tech, and road-ready power into a 45-foot rolling penthouse. Located in Nashville, this coach is turn-key for long trips, executive travel, or full-time living.

Why This 2009 Prevost H3-45 Marathon Coach Stands Out

  • Luxury quad-slide floor plan (Jefferson H4-J) for maximum interior width when parked
  • Garage-kept, only 150,417 miles
  • Series 60 Detroit 14.0 L + Allison transmission—industry gold-standard power-train
  • Dual 4000 W inverters & 20 kW Kohler generator (1,830 hrs) for true off-grid capability
  • Recent upgrades (2023-2025): new Michelin tires & TPMS, house + coach batteries, starter, belts, fan-clutch, full engine/trans/generator service
  • Price-reduced to $575,000—one of the most competitively priced late-model Marathon conversions on the market
AttributeDetails
Make / ModelPrevost H3-45
ConverterMarathon Coach #1174
Year2009
Slides4
EngineDetroit Series 60 (14.0 L)
Mileage150,417
Generator20 kW Kohler
LocationNashville, TN
StatusFor Sale – $575,000
Front three-quarter exterior of 2009 Prevost H3-45 Marathon—luxury bus conversion for sale
Polished wood hallway in Prevost conversion showing marble flooring and slide-out cabinetry
Spacious salon of Prevost bus conversion with skylight ceiling and leather seating
Designer galley sink and backsplash inside Prevost luxury motorhome for sale
Prevost H3-45 bus with electric awning deployed—side profile in outdoor setting
Cream leather sofa lounge inside Marathon Prevost conversion coach
Entertainment bay with flatscreen TV in executive Prevost bus conversion
Solid-surface countertop and induction cooktop in Prevost motorhome kitchen
Driver-side cockpit lounge with swivel chair—Prevost luxury coach interior
Wide-angle view from cockpit to salon showcasing high-gloss woodwork in Prevost conversion for sale

Interior Highlights

Residential Galley & Salon

  • Solid-surface counters, induction cooktop, convection microwave
  • Full-size refrigerator & large pantry storage
  • Crestron-controlled AV zones with HD TVs and surround sound

Mid-Coach Amenities

  • Walk-in wardrobe + stacked washer/dryer—ideal for full-timers
  • Tile-lined shower, vessel-sink vanity, electric flush toilet

Rear King Suite

  • Slide-out king bed, dual nightstands & overhead storage
  • Individual climate zones and blackout privacy shades

Exterior & Systems

  • Quad-slide H3-45 shell delivers taller interior ceiling vs. XL-II/X3
  • Zip-Dee awnings create a shaded patio; exterior entertainment bay with flatscreen & speakers
  • Full bay heat, plumbing manifolds, and easy-access electrical panels for serviceability

Who Is This Coach Perfect For?

Private motorhome buyers wanting the quiet ride & stature only a Prevost can deliver.

Entertainers / touring pros who need quad-slide living space without sacrificing cargo bays.

Full-time RVers seeking Marathon’s residential build quality, proven chassis, and nationwide service network.

Schedule Your Private Tour

Buses are shown by appointment only at our Nashville facility.
Call Sean Kelchen — 913-530-1996 or click Inquire Now on the listing page to arrange a walkthrough or request the Matterport 3D tour.

Explore Our Full Coach Inventory

Looking for something different— or want to compare a few models side-by-side? Visit our complete inventory page to browse every coach we currently represent, including:

  • Prevost & MCI conversions — motorhomes, entertainer coaches, and executive day coaches
  • Late-model luxury builds with slide-outs, marathon conversions, and custom interiors
  • Budget-friendly classics ready for a DIY refit or quick road-trip duty
  • Special-purpose buses (crew, star, and specialty tour configurations)

Each listing features professional photos, a Matterport® 3-D walkthrough, and a detailed spec sheet, so you can shop with confidence before scheduling a viewing. New coaches arrive regularly—check back often or reach out if you’re searching for something specific.