New 2026 Dynamax DX3 37RB
+104 
- SALE PRICE: $369,995
- MSRP: $455,568
- You Save: $85,573
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41ft long
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Sleeps 5
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3 slides
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Cummins L9
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360 HP
37RB Floorplan
Specifications
| Sleeps | 5 | Slides | 3 |
| Length | 40 ft 9 in | Ext Width | 8 ft 5 in |
| Ext Height | 12 ft 9 in | Hitch Weight | 20000 lbs |
| GVWR | 33000 lbs | Fresh Water Capacity | 100 gals |
| Grey Water Capacity | 52 gals | Black Water Capacity | 52 gals |
| Tire Size | 22.5" | Fuel Type | Diesel |
| Engine | Cummins L9 | Chassis | Freightliner M2 106 Plus |
| Horsepower | 360 hp | Fuel Capacity | 100 gals |
| Wheelbase | 286 in | Available Beds | King |
| Torque | 1150 ft-lb | Refrigerator Type | Residential with Ice Maker |
| Refrigerator Size | 18 cu ft | Convection Cooking | Yes |
| Cooktop Burners | 3 | Number of Awnings | 1 |
| Axle Weight Front | 12000 lbs | Axle Weight Rear | 21000 lbs |
| LP Tank Capacity | 20.3 gals | Water Heater Type | Aqua Hot 400D Diesel |
| AC BTU | 30000 btu | TV Info | LR LED Smart TV, BR 32" LED Smart TV, Ext.LED Smart TV |
| Awning Info | 18' Armless with LED Lights and Wind Sensor | Washer/Dryer Available | Yes |
| Gross Combined Weight | 54000 lbs | Shower Type | Standard |
| Electrical Service | 50 amp | VIN | 1FVACXFE6THWP4767 |
Description
At the heart of the 2026 Dynamax DX3 37RB is a powerful Cummins diesel engine paired with a durable Freightliner chassis, delivering exceptional towing capacity, stability, and long-haul performance. This motorhome is purpose-built for travel enthusiasts who want to confidently navigate everything from winding mountain roads to open interstate highways. With its impressive engineering and smooth ride, every journey becomes part of the adventure.
Step inside and you’ll immediately notice how the DX3 37RB redefines what it means to travel in comfort. The spacious bath-and-a-half floorplan is ideal for extended trips, offering added convenience for families, couples, or anyone who enjoys hosting guests on the road. The thoughtfully designed layout maximizes both living space and privacy, creating a seamless blend of functionality and luxury.
The main living area features high-end furnishings, including plush seating and a beautifully crafted dinette, all positioned to create a relaxing environment after a day of travel. Large panoramic windows bring the outside in, letting you enjoy scenic views from national parks, campgrounds, or coastal destinations without leaving your coach. Integrated entertainment systems provide everything you need for movie nights or downtime between adventures.
The residential-style kitchen is fully equipped for life on the road, featuring solid surface countertops, premium appliances, generous storage, and ample prep space. Whether you’re cooking a quick breakfast before hitting the road or preparing a full dinner at your destination, this kitchen is designed to keep up with your travel lifestyle.
In the rear, the private master suite offers a true retreat. A king-size bed, abundant wardrobe storage, and refined finishes create a comfortable space to recharge after a day of exploration. The full rear bathroom provides a spa-like experience with a large shower, modern fixtures, and plenty of room to move—while the additional half bath adds convenience for guests and daily use.
Traveling in the 2026 Dynamax DX3 37RB also means enjoying advanced climate control and energy systems that keep you comfortable in a variety of environments. From hot southern summers to cooler mountain evenings, this motorhome is built for year-round travel. Ample exterior storage compartments make it easy to bring along everything you need, from outdoor gear to travel essentials, without compromising interior space.
Technology is seamlessly integrated throughout the coach, enhancing both travel and everyday living. Stay connected with modern connectivity features, monitor systems with ease, and enjoy intuitive controls that simplify your RV experience. Driver-focused innovations, including enhanced visibility and safety features, help reduce fatigue and increase confidence behind the wheel, making long-distance travel more enjoyable.
One of the greatest advantages of the DX3 37RB is its versatility. It’s equally suited for weekend getaways, extended road trips, or full-time RV living. Whether you’re chasing warmer weather, exploring hidden destinations, or visiting iconic landmarks across the country, this motorhome adapts to your travel goals and lifestyle.
For travelers who value independence, comfort, and the ability to go wherever the road leads, the 2026 Dynamax DX3 37RB is more than just an RV—it’s a gateway to unforgettable experiences. Backed by the trusted service and expertise of Lazydays, powered by Camper’s Inn, you’ll have the support you need before, during, and after your purchase.
If you’ve been searching for a luxury Super C diesel motorhome that combines performance, innovation, and residential comfort, the 2026 Dynamax DX3 37RB is a standout choice. Elevate your travel experience, embrace the freedom of the open road, and start making memories that last a lifetime.
Begin your next journey today with the 2026 Dynamax DX3 37RB—where every mile is an opportunity to explore, relax, and truly enjoy the art of travel.
Features
Standard Features (2026)
Chassis
- Freightliner® M2 106 Plus Chassis (33,000 lb. GVWR/54,000 lb. GCWR)
- Cummins® L9 Turbo Diesel Engine (360hp / 1,150 lb-ft. of Torque)
- Allison® 3200 TRV Six-Speed Automatic Transmission
- 100-Gallon Fuel Capacity (Twin 50-Gallon Aluminum Fuel Tanks)
- 6-Gallon Diesel Exhaust Fluid Tank
- Trailer Hitch (20,000 Tow lbs. / 2,000 Tongue lbs.) with 7-Way Round Tow Connection
- Brake Controller
- C-Brake by Jacobs® with High/Medium/Low Settings
- Locking Differential
- Airliner® 21,000-lb. Rear Suspension
- Manual Air Suspension Dump Valve Switch on the Dash
- 275-Amp Alternator
- Quick Disconnect Fitting with Tire Inflation Kit
- Air Brakes with 4-Wheel ABS
- Bilstein® Gas-Charged Front Shock Absorbers
- Equiflo™ Inboard Fuel System (Dual Supply – Dual Return)
- Fuel Filter/Water Separator with Primer Pump
- Engine Block Heater
- Steel-Reinforced, Aluminum Cab
- Chrome Grille and Air Intake Grille
- Front and Rear Tires: 275/80R22.5 (14 Ply Radials)
- Single Front Wheels: Alcoa® Aluminum (22.5" x 8.25") *Outside Rims are Polished
- Dual Rear Wheels: Alcoa® Aluminum (22.5" x 8.25") *Outside Rims are Polished
- Valve Extensions
- Tire Pressure Monitoring System
- 4.78 Rear Axle Ratio
- Daytime Running Lights
- LED Headlights
- Tinted Door Glass and Wing Windows
- Chassis Battery Shut Off Switch in Cab
- Leatherette Driver and Passenger Air Ride Seats with Air Lumbar Controls
- Quad-View Camera System (Right Side, Left Side, Hitch, and Rear Horizon Views)
- Sony® 10.1" HD Touch Screen Dash Infotainment System with AM/FM, Bluetooth®, Sirius/XM® (tuner and antenna), Wired and Wireless Apple® CarPlay™ / Android® Auto™ Connectivity, USB-C port, and High-Resolution Audio
- JBL® Premium Cab Sound System - JBL full range/tweeter coaxial speakers, dual voice coil subwoofer, and a high-efficiency, high-performing, 4-channel DSP amplifier, all "Tuned" specifically for the Freightliner M2
- Mobileye® Collision Avoidance System
- Air Horn
- 12V Accessory Ports
- One Valve Parking Brake System with Warning Indicator
- Engine After-Treatment Device, Automatic Over-the-Road Regeneration, and Dash-Mounted Regeneration Switch
- Momentary Battery Booster Switch for Connecting Chassis and House Batteries
- Marker Lights with Separate Interrupter Switch
- Low Air Pressure Light and Buzzer
- Cruise Control
- Adjustable Steering Column
- 18" Leather-Wrapped Steering Wheel
- Power and Heated Exterior Mirrors
- Power Windows and Locks
- 3-Point Seat Belts
- Dual Reading Lights
- Two (2) Cup Holders in Dash
Construction
- 2" Aluminum-Framed, Laminated Sidewalls with High-Density Block Foam Insulation
- Composite Exterior Fiberglass (No Exterior Wood)
- Aluminum-Framed Floor
- Aluminum-Framed Roof Trusses
- Crowned, One-Piece Fiberglass Roof
- Foil-Lined Ductwork Throughout
- Fiberglass Rear Cap and Front Wing Panels
- Automatic, 4-Point Hydraulic Leveling Jacks
- Dual-Pane, Dark-Tinted, Frameless Square Windows with Integrated Day/Night Shades
- Seamless Rotocast Storage Compartments with LED Lighting
- Side-Hinged, Locking Aluminum Exterior Storage Doors with Paddle Latches
Exterior
- Custom Full Body Paint Package
- Premium Cut and Buffed Paint Finish
- Front-End Diamond Shield® Paint Protection
- Roof-Mounted, Integrated Armless Patio Awning with LED Lighting and Wind Sensor
- Aluminum-Wrapped Slide Out Toppers
- LED Patio Light
- Entry Door with Rotary Latch; Dark-Tinted, Frameless Window; and Integrated Shade
- Keyless Entry Touch Pad at Entry Door
- Lighted Acrylic Entry Grab Handle
- Power Entry Steps with upgraded SeaDek Step Treads
- Remote Locking System for Exterior Storage Doors & Entry Door (Starting at DXC007159)Exterior Wall-Mounted Entertainment Center with 40" LED Smart TV and Sound Bar
- Front and Rear LED Clearance and Marker Lighting
- Rear LED Docking Lights
- Polished Stainless Steel Cab Step Treads
- Rear “DYNAMAX” Rock Guard
- Chrome Exhaust Tip
Interior
- Luxury Vinyl Tile Throughout with Non-Skid Rubber Steps
- Deluxe Carpet with Pad in Select Living Area Slide Rooms
- Soft-Touch Padded Vinyl Ceiling
- Luxury Vinyl Tile Entry with Non-Skid Rubber Steps
- LED Recessed Ceiling Lights
- Sprung, Residential Style Dinette Seats with Lift Up Storage
- Tri-Fold Sofa
- Hardwood Raised Panel Cabinetry with Five-Piece Drawer Fronts
- Hardwood Shaker-Style Passage Doors
- Full Extension, Soft-Closing Drawer Guides (where applicable)
- Hidden Hinges
- 42" LED Smart TV (Living Area) (N/A - 37BD & 37TS)
- 39? LED Smart TV (Living Area) (37BD Only)
- Entertainment Center with Pop-Up 50" LED Smart TV and Fireplace (37TS Only)
- Sound Bar
- Magnetic Thermal, Reflective Front Privacy Shades
- USB Charging Ports
Kitchen
- 18 cu. ft. Residential Refrigerator with Ice Maker (N/A 32KD)
- 16. cu. ft. Residential Refrigerator with Ice Maker (32KD only)
- Sealed Gas Range with Glass Cover
- Convection Microwave Oven
- Solid Surface Countertops with LED Edge Lighting and Backsplash
- Stainless Steel Sink with Solid Surface Covers
- Residential Stainless Steel Spring Gooseneck Faucet
- Pantry
- Overhead Cabinet Accent Lighting
- Under-Cabinet Lighting
- MaxxAir® Power Vent with Built-In Rain Cover
Bedroom
- King Bed (71"x78") with Gel-Infused Memory Foam Mattress
- Deluxe Padded Headboard
- Designer Bedding Package
- 32" LED Smart TV
- Sound Bar (N/A - 32KD)
- Cedar-Lined Wardrobe
- Nightstands with Solid Surface Countertops
- LED Reading Lights
- USB Charging Ports
- Bunk Bed Mattresses (28" x 76") and Privacy Partition (37BD)
- Two Bunk CD/DVD Players with Monitors (37BD)
Bathroom
- Solid Surface Shower Surround (36"x30")
- Shower Skylight
- Glass Shower Door
- Oxygenics Body Spa® RV Shower Head
- Solid Surface Countertop with LED Edge Lighting and Backsplash
- Under-Mount Sink with Residential Brushed Nickel Faucet (37RB: Two Sinks in Full Rear Bath)
- Porcelain Foot-Flush Toilet (37BD & 37TS)
- Porcelain Electronic-Flush Macerator Toilet(s) (N/A 37DB & 37TS)
- MaxxAir® Power Vent with Built-In Rain Cover
Utilities
- Dual 12V 8D AGM Deep-Cycle, Maintenance-Free Batteries
- Multiplex® Wiring with Touch Screen Command Center, Switch Panels, and Bluetooth® Smart Phone App Control
- Battery Disconnect
- 50-Amp Service with Power Cord Reel
- 3,000W Hybrid Pure Sine Wave Inverter/Charger (3,500 Peak Watts)
- 8kW Onan® Diesel Generator with Auto Transfer Switch (Mounted on Isolator Pads)
- Automatic Generator Start
- Solar Panel - Single 200 Watt with 30 Amp Controller
- Dual Ducted, Low-Profile 15,000-BTU Air Conditioners with Heat Pumps
- Aqua-Hot® 400D Diesel System
- Combo Washer Dryer Prep (32KD)
- Stackable Washer/Dryer Prep (N/A - 32KD)
- 20.3-Gallon LP Tank (WC)
- LP Quick Connect
- Water Filtration System
- Exterior Shower in Service Bay
- Power Water Hose Reel in Service Bay
- Exterior GFCI Receptacle
- KING® Jack™ Directional OTA HDTV Antenna
- KING® DISH Tailgater® Pro Premium HD Satellite with DISH Network Receiver
- 4x4 HDMI Matrix
- Cable TV/Satellite Hookup in Service Bay
- Thetford® Sani-Con Turbo Macerator System
- Black Tank Flush
- SureLevel® Tank Level Monitoring System
- Utility Compartment Heated by Aqua-Hot® System
- Enclosed Holding Tanks Heated by Aqua-Hot® System
- Upgraded 12V On-Demand Water Pump (4 gallons per minute)
- Carbon-Monoxide, LP Gas, and Smoke Detectors
- Fire Extinguisher
Options
- Aerodynamic Fiberglass Front Cap with Cab-Over Cabinets
- Extended Fiberglass Front Cap with Cab-Over Bunk Mattress and Privacy Curtain
- Black Out Package (Cab Entry Steps, Side Mirrors, Rock Guard, Wheels, Headlight Bezels, Exterior Grab Handle Trim, Custom Grille and Vent)
- Chrome Appearance Package (Custom Grill and Vent; Dual Roof-Mounted Air Horns, Baggage Door Handles; & Remote-Locking System for Exterior Bays & Entry Door)
- *Remote-Locking System is a standard feature starting at DXC007159
- Single Color Full Body Paint (with $3,750 MSRP credit)
- 12V 15 cu. ft. 3-Door Compressor-Driven Refrigerator in place of Standard Refrigerator and Side Pantry
- Washer/Dryer (N/A - 32KD)
- All-Electric Package: Induction Range and Exterior Storage Compartment in Place of LP Tank
- Dual, Power Reclining Theater Seats in Place of Dinette (N/A - 34KD)
- Three-Seat, Power Reclining Theater Seats in Place of Dinette (34KD - Only Outer Seats are Powered)
- Xplorer Package - includes Insulated Cab Curtain; Two Lithium House Batteries (540aH Total); 1,000W Solar Package; Insulated Utility Bay; & Access to Exclusive Xplorer Package Paint Scheme (Dark, Light, or Midnight)
Please 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.