Used 2023 Heartland Mallard M-33
+40M-33 Floorplan
Specifications
| Sleeps | 9 | Slides | 3 |
| Length | 37 ft | Ext Width | 8 ft 1 in |
| Ext Height | 11 ft 6 in | Hitch Weight | 702 lbs |
| GVWR | 9600 lbs | Dry Weight | 7746 lbs |
| Cargo Capacity | 1822 lbs | Fresh Water Capacity | 45 gals |
| Grey Water Capacity | 80 gals | Black Water Capacity | 40 gals |
| Furnace BTU | 30000 btu | Number Of Bunks | 3 |
| Available Beds | King | Refrigerator Type | Double Door |
| Refrigerator Size | 8 cu ft | Cooktop Burners | 3 |
| Number of Awnings | 1 | Axle Weight | 5100 lbs |
| LP Tank Capacity | 20 lbs | Water Heater Capacity | 6 gal |
| Water Heater Type | Gas/Electric DSI | AC BTU | 13500 btu |
| Awning Info | 18' Power with LED Lighting | Axle Count | 2 |
| Number of LP Tanks | 2 | Shower Type | Tub/Shower Combo |
| Electrical Service | 30 amp | VIN | 5SFNB3725PE517135 |
Description
Heartland Mallard Travel Trailer 33 Highlights:
- Private Bunkhouse
- Dual Entry
- Triple Slides
- U-Shaped Dinette
- Outdoor Kitchen
- Super King Long-Sized Storage
2023 Heartland Mallard M33 Travel Trailer
Big Space. Big Features. Big Adventures — Now at Campers Inn RV
Get ready to camp in comfort and style with the 2023 Heartland Mallard M33. This spacious, lightweight travel trailer is designed for families and groups who want room to spread out without giving up modern comforts or towability. With a private bunkhouse, dual opposing slide-outs, and an outdoor kitchen, this trailer is packed with features that make every camping trip feel like home.
Whether you're planning long road trips, weekend escapes, or cross-country adventures, the Mallard M33 is a great match for half-ton towable capability and family-friendly design—all backed by Heartland's trusted construction.
2023 Mallard M33 Key Highlights:
Private Rear Bunkhouse
- A true retreat for kids or guests featuring bunk beds, a dinette sleeper, storage, and a door for privacy.
Spacious Living Area
- Opposing slide-outs create a wide-open living room with a booth dinette, tri-fold sofa, and entertainment center.
Front Master Suite
- Private bedroom with a queen bed, dual wardrobes, overhead cabinets, and solid entry door.
Full Interior Kitchen
- Includes a 3-burner cooktop, microwave, deep basin sink, large fridge, and abundant counter space.
Outdoor Kitchen
- Cook outside with a griddle, mini fridge, and storage—perfect for BBQs and tailgates.
Dual-Entry Full Bathroom
- Residential-style bathroom with walk-in shower, sink, toilet, and a second entry door for outside access.
Wide Trax Axle System
- Improves towing stability and road handling, especially on longer hauls.
Aluminum Frame Construction
- Lightweight yet durable, with block foam insulation and a fully walkable roof.
Power Awning with LED Lighting
- Quick shade and nighttime ambiance at the push of a button.
Large Pass-Through Storage
- Store all your gear with ease—plenty of space for chairs, grills, and adventure equipment.
Why the Mallard M33 Is a Top Choice:
Sleeps Up to 9
Perfect for large families, groups, or anyone needing separate sleeping areas.
Private Spaces for Everyone
Bunkhouse and master bedroom are on opposite ends, giving parents and kids their own space.
Spacious Yet Lightweight
Despite its roomy layout, this trailer remains towable by many half-ton trucks.
Entertain Inside and Out
Indoor and outdoor kitchens make cooking fun wherever you are.
Built to Last
Heartland’s construction quality, insulation, and smart design make this a long-term investment in family fun.
Why Buy from Campers Inn RV?
A Family Business Since 1966
With nearly 60 years in the RV business, we know how to match families with the perfect RV—and back it up with unbeatable service.
Nationwide Dealer Network
Shop and get service at one of our many locations across the U.S.—you’re never far from a Campers Inn RV.
No Hidden Fees, No Gimmicks
We offer transparent, up-front pricing and flexible financing that puts you in control.
We’re Here After the Sale
From delivery and walkthroughs to maintenance and upgrades, our expert team is here to support your RV journey.
Exclusive Customer Benefits
Enjoy RV education events, loyalty rewards, and priority service when you join the Campers Inn family.
Make Every Trip a Family Adventure
The 2023 Heartland Mallard M33 offers everything you need for memorable camping experiences—room to relax, smart storage, outdoor living, and rugged towability. Whether you're a first-time buyer or upgrading your current rig, this trailer is a smart, comfortable choice that can grow with your family.
Contact Campers Inn RV today to check availability, get a quote, or schedule a tour of the Mallard M33 at your nearest location.
Adventure starts here—let's go camping!
- Triple Slides
- U-Shaped Dinette
- Outdoor Kitchen
- Super King Long-Sized Storage
Features
Standard Features
Exterior Features
- All New Super King Kong sized storage up to 67.5 cu.ft. of pass-thru storage (N/A M180BH)
- Automotive grade painted aerodynamic front cap (N/A West Coast Models)
- Flip down exterior steps
- Glow in the dark graphics
- Power Awning with LED lighting
- Dual 20# LP tanks w/auto change over (1-20 lbs. tank in T180BH)
- Underbed storage
- Cable ready hookup
- Bumper w/hose storage
- Electric awning with LED lights
- Dual Ducted A/C with curved ceiling for maximum height (Flat ceiling in T180BH)
- Gas/electric DSI water heater
- 12 volt FM radio with HDMI pass through
- 55 amp 12 volt power converter
- Forced air heated and enclosed underbelly
- Black tank flush
- 13,500 BTU air conditioner
- 50 Amp A/C prep in model M312 and larger
- Backup camera prep
- Solar panel prep
Interior Features
- All New Master Chef kitchen with new Infinity edge countertops and stainless steel under mount sink
- Select-a-Style, reversible booth cushions – we pick the comfort, you pick the color! (most models)
- Comfort Select 72? x 80? King mattress (most models)
- Soft Glow backlit fascia (N/A M180BH)
- Newly designed entertainment center with hidden storage (most models)
- EZ Sweep Slideout Floors
- Tinted safety windows
- Hidden Hinges on cabinetry and Steel ball bearing drawer guides
- Finished and insulated pass-through storage, Slam baggage doors with magnetic latches (N/A M180BH)
- Friction hinge entry door
- WiFi prep
- Overstuffed residential furniture
Construction Standard Features
- Power Stabilizer Jacks
- Painted front cap with LED accent lights
- Aluminum construction
- 4" Fully walkable vacuum bonded laminated roof (N/A West Coast models)
- 2" Laminated sidewalls with Azdel
- Designer interior doors
- Solar Prep
Tires and Axles Standard Features
- Wide Traxx axle system
- Leaf spring suspension
- E-Z lube hubs
- Spare tire
- Aluminum rims
Kitchen Standard Features
- Full height residential backsplash
- Deep bowl kitchen sink
- High Rise kitchen faucet
- Large double door refrigerator
- Kids Doodle station
Bedroom Standard Features
- Quick Store bed base (most models)
Bath Standard Features
- Skylight in shower (n/a T180BH)
- Power vent in bathroom
- Foot flush toilet
- Medicine cabinet
- Shower / Tub surround
Standard Safety Features
- Fire extinguisher
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.
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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.



