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Thor Motor Coach Quantum Motor Home Class C RVs For Sale

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The Quantum Class C gas motorhomes by Thor Motor Coach are suitable for full-timers and weekend warriors! With a chic interior design, comfortable furniture, and technology features, traveling can't get any easier!


Each coach is built with a welded tubular aluminum roof and sidewall cage construction, a fiberglass front cap with a skylight and power shade, plus a one-piece upper rear cap for added protection. The touchscreen dash radio and a back-up monitor provides hassle-free driving, and the interior is spacious with a 7-foot ceiling height. A Ford E-Series chassis provides a durable foundation to your RV, and there are even two models available with a Chevy chassis!


Get ready to make family memories on the road in a Thor Motor Coach Quantum Class C gas motorhome!

  • Quantum WS31

    Quantum WS31 Floorplan Image

    Thor Motor Coach Quantum Class C gas motorhome WS31 highlights: Cab-Over Bunk ... more about Quantum WS31

    Have a question about this floorplan? Contact Us


    Sleeps 6
    Slides 1
    Length 32 ft 4 in
    Ext Width 8 ft 3 in
    Ext Height 11 ft 2 in
    Int Height 7 ft
    Interior Color White Truffle ll, Fashion Grey ll
    Exterior Color Partial Paint. Full Body Paint; Summer Jazz, Symphony
    Hitch Weight 8000 lbs
    GVWR 14500 lbs
    Fresh Water Capacity 40 gals
    Grey Water Capacity 28 gals
    Black Water Capacity 28 gals
    Furnace BTU 30000 btu
    Generator 4.0 kw Gas
    Fuel Type Gas
    Engine 7.3L V8
    Chassis Ford E-Series
    Horsepower 325 hp
    Fuel Capacity 55 gals
    Wheelbase 223 in
    Number Of Bunks 1
    Available Beds Queen
    Torque 450 ft-lb
    Refrigerator Type 12 Volt w/Auto Generator Start
    Convection Cooking Yes
    Cooktop Burners 2
    Shower Size 32" x 32"
    Number of Awnings 1
    LP Tank Capacity 40 lbs
    Water Heater Type Tankless
    AC BTU 22000 btu
    Basement Storage 55.7 cu. ft.
    TV Info LR 39" Smart TV, BR 32" Smart TV, Ext. 32" TV
    Awning Info 16' Power w/Integrated LED Lighting
    Gross Combined Weight 22000 lbs
    Shower Type Radius
    Electrical Service 30 amp

    Similar Floorplans

Quantum Features:

Standard Features (2025)


Construction & Exterior

  • Ford E-Series Chassis - 7.3L V8. 325HP 450 lb.-ft Torque w/TPM's
  • Chevrolet Chassis - 6.6L V8 401HP 464 lb.-ft Torque (Model Specific)
  • 8,000-lb. Trailer Hitch
  • Electric Stabilizing Jack System (Model Specific)
  • Automatic Leveling Jacks with Touchpad Controls (Model Specific)
  • SmoothTECH Suspension System
  • Welded Tubular Aluminum Roof & Sidewall Cage Construction
  • Vacuum-Bond Laminated Roof, Walls & Floors w/Block Foam Insulation
  • Fiberglass Front Cap with Skylight, and Power Shade
  • One-Piece Upper Rear Cap
  • Sterling Exterior w/Graphics Package (Model Specific)
  • Sterling Partial paint w/Graphics Package (Model Specific)
  • Full-Body Paint Package w/Protective Mask IPO Partial Paint (Optional) (Model Specific)
  • Exterior MEGA-Storage Compartment - Large Storage Area (Model Specific)
  • Portable Table in MEGA-Storage® Compartment (Model Specific)
  • Lighted Rotocast Storage Compartments Lights are all on One Interior Switch
  • Flush Mount Radius Compartment Doors
  • Premium One-Piece Crossflex Exterior Roofing
  • Power Patio Awning with Integrated LED Lighting
  • Slide out Room Topper Awning(s) (Model Specific)
  • Roof Ladder
  • Exterior Grab Handle
  • Drop Down Stairwell Entrance Step w/Accent Light Under Step on Separate Switch
  • Entry Door with Deadbolt Lock
  • Black Framed Windows (Model Specific)
  • Frameless Slider Windows (Model Specific)
  • Exterior Pull-out Kitchen w/Griddle and 12v Cooler (Model Specific)

Automotive & Cockpit

  • Chevy Chassis Only: 7" Touchscreen Dash Radio, with Bluetooth, Android Auto, Apple CarPlay & Sirius /XM Radio Ready. Keyless Entry Key Fob, Emergency Engine Start Switch (Model Specific)
  • FORD Chassis Only: 10" Touchscreen Dash Stereo with Bluetooth, Android Auto, Apple CarPlay & Sirius /XM Radio Ready.FORD Chassis Only: Touch N' Go Control Panel: Tank Levels. Generator AGS, Emergency Start Switch, Slide out Controls, Keyless Entry Key Fob.
  • Steering Wheel Audio and Camera Control Ford Chassis Only
  • Back-up Monitor
  • Deluxe Exterior Mirrors (Model Specific)
  • Heated/Remote Exterior Mirrors w/Side View Cameras (Model Specific)
  • Molded Automotive Cockpit Headliner
  • Power Windows & Door Locks
  • Cruise Control
  • Tilt Steering Wheel
  • Map Light
  • Sun Visors
  • Windshield Privacy Curtain
  • Drink Holders
  • Three-point Seat Belts for the Driver & Passenger
  • Swivel Captain’s Chairs in Chassis Cockpit (Ford Chassis Only) (Model Specific)
  • Leatherette Captain's Chairs (Model Specific)
  • Valve Stem Extenders
  • Stainless Steel Wheel Liners
  • Aluminum Running Boards
  • LED Taillights


  • 84” Interior Ceiling Height
  • Residential Vinyl Flooring
  • Rubber Tread Entry Steps with Lighted Step Well
  • Metal Entry Grab Handle
  • Smoke, LPG, Carbon Monoxide Detectors
  • Fire Extinguisher
  • Hard Vinyl Ceiling
  • Ceiling Ducted Air Conditioning System (Model Specific)
  • Weathered Cherry Flat Panel Cabinet Doors with Nickel Finish Hardware (Model Specific)
  • Cali Collection Flat Panel Cabinet Doors Two-Tone. Black Nickel Kitchen Faucet, Door Pulls and Hinges. Bath Hardware is all Brushed Nickel Including All Faucets. (Model Specific) (Optional on Select Models)
  • Decorative Glass Inserts in Kitchen Overhead Cabinet Doors w/Weathered Cherry Only (Model Specific)
  • Pressed Laminate Countertops Throughout (Model Specific)
  • Pressed Laminate Countertops Throughout Except Kitchen (Model Specific)
  • LED Lighting
  • Cab-Over Sleeping Area with Cup Holders, and Telescoping Bunk Ladder
  • Cab-Over Child Safety Net (Optional)
  • Leatherette Sofa w/Queen Size Murphy Bed Conversion (Model Specific)
  • Leatherette Jack-Knife Sofa (Model Specific)
  • Leatherette Theater Seating Option IPO Sofa LC28
  • Leatherette Theater Seating Option IPO Sofa. KW29, LF31, PQ31, and WS31
  • Living Room Accent Mirror (Model Specific)
  • Leatherette Dream Dinette® Booth
  • Wireless Phone Charger w/USB Plug on Dinette Table Top.
  • Passenger Seat Belts in Select Areas
  • Single Child Safety Tether in Dinette (Model Specific)
  • Dual Child Safety Tethers in Dinette (2) Forward Facing. (1) Belt No Tether Rearward Facing (Model Specific)
  • Window Privacy Shades (Model Specific)
  • Premium Window Privacy Roller Shades w/New Window Treatments (Model Specific)
  • Electric Fireplace with Remote Control (Model Specific)
  • Full Extension Soft Close Metal Ball-Bearing Drawer Guides
  • Ceiling Vent in Cab-Over Bunk


  • 12v Refrigerator w/Auto Generator Start
  • Upgraded Recessed 3-Burner Gas Cooktop/Oven with Glass Cover (Model Specific)
  • Metal Pan Drawer Front (Where Applicable) (Model Specific)
  • Range Hood w/Task Light above Cooktop (Model Specific)
  • Microwave Oven (Model Specific)
  • 2-Burner Gas Cooktop with Single Induction Cooktop (Model Specific)
  • 30” Over-the-Range Convection Microwave Oven (Model Specific)
  • Solid Surface Kitchen Countertop Under Mounted Sink w/Stainless Steel Sink Cover. (Model Specific)
  • Pressed Laminate Kitchen Countertops (Model Specific)
  • Large Single Bowl Stainless Steel Sink w/Single Handle Faucet w/Pull-Down Sprayer
  • Flip-Up Countertop Extension (Model Specific)
  • Pop-Up Countertop Outlet & Charging Center for Electronics (Model Specific)
  • Large Kitchen Window behind Kitchen Sink and Cooktop
  • Kitchen Accent Countertop Light
  • Kitchen Waste Basket
  • Kitchen Pantry Cabinet (Model Specific)
  • 12-volt Ceiling Vent in Kitchen with Under Cabinet Switch

Bedroom & Bathroom

  • Full Size Bed (Model Specific)
  • Queen Size Bed (Model Specific)
  • Queen Size Murphy Bed (Model Specific)
  • King Size Bed (Model Specific)
  • Bedspread and Pillow Shams
  • Decorative Headboard (Model Specific)
  • Bedroom USB Power Charging Center for Electronics
  • Hallway Bunk Beds with Telescoping Ladder (Model Specific)
  • Bedroom 12V Outlet for CPAP Machine
  • Power Bath Vent w/Wall Switch Bath
  • Foot Flush Toilet
  • Stainless Steel Bathroom Sink
  • Robe Hook'(s) Inside Bathroom
  • Skylight in Shower
  • Shower w/Upgrade Shower Curtain (Model Specific)
  • Shower with Curved Anti-Microbial Shower Curtain (Model Specific)
  • Shower with Glass Door (Model Specific)
  • Ceiling Vent in Bedroom (Model Specific)
  • 12-volt Attic Fan with Cover in Bedroom (Model Specific)


  • 39" Smart TV on Manual Swivel in Cab-Over (Model Specific)
  • 39” Mid-Ship Smart TV in Living Area (Model Specific)
  • 32” Smart TV in Bedroom (Model Specific)
  • Bedroom TV Prep (Model Specific)
  • Hallway Bunk Beds w/Gear Net Storage (Model Specific)
  • 12-Volt Smart Exterior 32" TV on Swivel Bracket with Bluetooth Built in Sound Bar and Radio (Model Specific) (Optional on Select Models)
  • Satellite Mounting Backer in Roof

Electrical & Plumbing

  • 4.0 kw Gas Generator
  • Winegard® ConnecT™ 2.0 WiFi / 4G / TV Antenna
  • 30-amp Shoreline Power Cord
  • Automatic Transfer Switch w/Power Protection
  • Automatic Shoreline-to-Generator Transfer Switch
  • 15,000 BTU Roof Front Air Conditioner (Model Specific)
  • Dual 11,000 BTU Roof Air Conditioners IPO 15,000 BTU Air Conditioner (Model Specific)
  • Battery Disconnect Switch
  • Second Auxiliary House Battery (Model Specific)
  • Battery Tray for Four (4) Batteries
  • 100-watt Solar Charging System with Power Controller
  • Tankless Water Heater
  • Stackable Washer/Dryer Prep (Model Specific)
  • Outside Shower (Model Specific)
  • Exterior Water Spray Port Patio Side of Coach. (Model Specific)
  • 360 Siphon RV Holding Tank Vent Cap
  • 1” Fresh Water Tank Drain
  • Exterior LP Connection (Model Specific)
  • Holding Tanks with Heat Pads
  • Enclosed Sewer Area for Sewer Tank Valves (Model Specific)
  • Black Tank Flush System
  • Chevy Chassis Only: Systems Control Center (Model Specific)

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to the current environment, our features and options are subject to change due to material availability.


Thor Motor Coach

Welcome to Thor Motor Coach, the #1 Motorhome Brand in North America, producing nearly 1 out of every 4 motorhomes sold each year. Formed in 2010 as a strategic merger of Damon Motor Coach and Four Winds International, we build many of the world’s most recognized motorhomes. As an industry leader in introducing cutting-­edge innovations, we offer a wide range of styles, sizes, floor plans and features – delivering coaches that fit every customer’s lifestyle and budget.


Our diverse product lineup includes gas and diesel powered Class A and Class C motorhomes, as well as several innovative Class B options as well.  By building a variety of unique styles, sizes, and floorplands, we offer motorhomes that feel custom-made – at a truly competitive price.


With so many unique models available, Thor Motor Coach motorhomes are priced to fit anyone’s budget – from families buying their first motorhome, to full-timers looking for a roaming “dream home.” No matter how you choose to spend your time or your money, there’s a Thor Motor Coach motorhome that fits your needs.