We have purchased several RVs in the past but this was by far the best experience as well as service we have had. Our salesman was great in the sales process of our DX3 and we like everything about it.
Dynamax DX3
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Dynamax DX3 RVs For Sale
Dynamax DX3 Super C diesel motorhomes for sale at Motor Home Specialist, the #1 Volume Selling Motor Home Dealer in the World and the #1 Dynamax RV dealer in the country.
The DX3 is Dynamax's flagship Super C diesel motorhome. It's built on the Freightliner M2 106 Plus chassis with the Cummins L9 turbo diesel. If you want commercial-grade chassis components and serious tow capacity for a stacker trailer, race car hauler, boat, or enclosed trailer, the DX3 targets that job directly. It also fits full-time RV owners who want a heavier chassis, air ride suspension, and a longer list of luxury finishes than most Super C platforms. Dynamax also builds the smaller Europa on a lighter Freightliner platform. See the FAQ below for how the two compare.
Chassis, Power, and Towing
The DX3 rides on the Freightliner M2 106 Plus chassis with a 33,000-pound GVWR and a 54,000-pound GCWR. The Cummins L9 turbo diesel makes 360 horsepower and 1,150 lb-ft of torque. It pairs with the Allison 3200 TRV 6-speed automatic transmission, a 4.78 rear axle ratio with rear locking differential, and a 275-amp alternator. Twin 50-gallon aluminum tanks hold 100 gallons of fuel. The 20,000-pound trailer hitch carries a 2,000-pound tongue rating and a 7-way round connector. Stopping and ride quality come from air brakes with 4-wheel ABS, the C-Brake by Jacobs (with high/medium/low settings), Airliner 21,000-pound rear air suspension, Bilstein gas-charged front shocks, and a front sway bar.
The cockpit gets leatherette air-ride driver and passenger seats with air lumbar controls, a Quad-View camera system (right side, left side, hitch, and rear horizon views), and the Mobileye Collision Avoidance System. The Sony 10.1-inch HD touchscreen runs wired and wireless Apple CarPlay and Android Auto through the JBL Premium Cab Sound System tuned for the M2. You also get an 18-inch leather-wrapped steering wheel, an adjustable steering column, power heated exterior mirrors, an air horn, and 3-point seatbelts.
Construction and Exterior
The body uses 2-inch aluminum-framed laminated sidewalls with high-density block foam insulation, an aluminum-framed floor and roof trusses, a crowned one-piece molded fiberglass roof, a fiberglass rear cap and front wing panels, and a composite fiberglass exterior with no exterior wood. Foil-lined ductwork runs throughout. Custom full-body paint comes with scheme-matched cab door jambs, a premium cut-and-buffed finish, and front-end Diamond Shield paint protection.
Outside you'll find a roof-mounted armless patio awning with LED lighting and a wind sensor, aluminum-wrapped slideout toppers, an LED patio light, a keyless entry touch pad, a remote locking system for the entry and storage doors (standard on recent production units), a lighted acrylic entry grab handle, power entry steps with SeaDek treads, polished stainless steel cab step treads, and LED clearance, marker, and docking lights. The exterior entertainment center pairs a 40-inch LED Smart TV with a JBL soundbar on a swivel extension mount. Dual-pane dark-tinted frameless windows include built-in night shades and screens. One-piece rotocast storage compartments get LED lighting and side-hinged locking aluminum doors with paddle latches. Automatic 4-point hydraulic leveling jacks are standard.
Climate, Power, and Utility Systems
Dual ducted low-profile 15,000 BTU rooftop air conditioners with heat pumps handle cooling. The Aqua-Hot 400D diesel hydronic system covers heat and hot water, and it also warms the basement storage and holding tanks. Power comes from an 8 kW Onan diesel generator with automatic start and transfer switch (mounted on isolator pads), dual 12V 8D AGM deep-cycle house batteries (490 amp-hours total), a 200-watt glass solar panel with 30-amp controller, a 3,000-watt hybrid pure sine wave inverter/charger, and 50-amp service with a 36-foot power cord reel. The Firefly Multiplex system controls the coach from a touchscreen, switch panels, or a Bluetooth mobile app, backed by an Energy Management System. Utility features include a 20.3-gallon LP tank with quick-connect, a Thetford Sani-Con Turbo macerator system, a black tank flush, SureLevel tank monitoring, an upgraded 12V water pump rated at 4 gallons per minute, an exterior shower in the service bay, and a power water hose reel.
Inside the DX3
Every DX3 runs luxury vinyl tile flooring, a soft-touch padded vinyl ceiling, dimmable LED recessed ceiling lights, hardwood raised-panel cabinetry with five-piece drawer fronts, hardwood Shaker-style passage doors, full-extension soft-closing drawer guides, hidden hinges, sprung residential-style dinette seats with lift-up storage, magnetic thermal reflective front privacy shades, and USB/USB-C charging ports. The galley pairs solid-surface countertops with LED edge lighting, a solid-surface backsplash, a stainless steel sink with solid-surface covers, a residential gooseneck faucet, a pantry, overhead cabinet accent lighting, under-cabinet lighting, a convection microwave with air fryer function, and a MaxxAir power vent with built-in rain cover. An optional 12V 15-cubic-foot 3-door compressor-driven refrigerator can replace the standard residential unit.
The master bedroom on every floor plan has a 71-by-78-inch king bed with a gel-infused memory foam mattress, a deluxe padded headboard, a designer bedding package, a 32-inch LED Smart TV, a cedar-lined wardrobe with a digital safe, nightstands with solid-surface countertops, LED reading lights, and USB/USB-C charging ports. The bath gets a 30-by-36-inch solid-surface shower surround with a glass door and skylight, an Oxygenics Body Spa shower head, solid-surface countertops with LED edge lighting and backsplash, an under-mount sink with a residential brushed nickel faucet, and a MaxxAir power vent with built-in rain cover.
The Five DX3 Floor Plans
At MHSRV, the DX3 comes in five floor plans: the 32KD, the 34KD, the 37BD, the 37RB, and the 37TS. Each one aims at a different kind of owner.
The 32KD is the shortest DX3. It comes standard with dual power reclining theater seats instead of a sofa, an induction cooktop, a 16-cubic-foot residential refrigerator with ice maker, a 42-inch living area TV with JBL soundbar, combo washer/dryer prep, and a porcelain electronic-flush macerator toilet. It's the only floor plan without the bedroom JBL soundbar.
The 34KD runs a tri-fold sofa standard, with an optional three-seat power reclining theater package. It uses the 42-inch living area TV with JBL soundbar and a porcelain electronic-flush macerator toilet.
The 37BD is the family floor plan. Twin rear bunks (28-by-76-inch mattresses each) get a privacy partition and two CD/DVD players with monitors. The living area uses a 39-inch LED Smart TV, and the bath uses a porcelain foot-flush toilet.
The 37RB is the rear-bath layout. Its full rear bath has two under-mount sinks. The living area gets the 42-inch TV with JBL soundbar, and the bath uses a porcelain electronic-flush macerator toilet.
The 37TS swaps the standard TV setup for an entertainment center with a pop-up 50-inch LED Smart TV and a fireplace. It uses a porcelain foot-flush toilet.
Except for the 32KD, every floor plan uses an 18-cubic-foot residential refrigerator with ice maker, a sealed gas range with a glass cover, and a JBL soundbar in the bedroom.
Options and Packages
Options across the lineup include the aerodynamic fiberglass front cap with cab-over cabinets, the extended fiberglass front cap with a 50-by-79-inch cab-over bunk and privacy curtain, the Black Out Package, the Chrome Appearance Package, single-color full-body paint, and the All-Electric Package (induction range with an exterior storage compartment replacing the LP tank). The Xplorer Package adds an insulated cab curtain, a lithium house battery upgrade, a 1,000-watt solar package, an insulated utility bay, and access to Xplorer-exclusive paint schemes.
Click here to read Dynamax DX3 reviews from verified MHSRV customers.
Cross-shopping the DX3 against other Super C and luxury Class A diesel options? Browse the full Dynamax RV lineup at MHSRV to compare floor plans, pricing, and features across the brand.
Dynamax DX3 FAQs
What is the Dynamax DX3?
The Dynamax DX3 is a luxury Super C diesel motorhome built on the Freightliner M2 106 Plus chassis with the Cummins L9 turbo diesel. It pairs commercial-grade drivetrain components with high-end interior finishes, air ride suspension, automatic 4-point leveling, and a 20,000-pound towing capacity. It's available in five floor plans.
What chassis is the Dynamax DX3 built on?
The Freightliner M2 106 Plus, with a 33,000-pound GVWR and a 54,000-pound GCWR. The Cummins L9 turbo diesel makes 360 horsepower and 1,150 lb-ft of torque through the Allison 3200 TRV 6-speed automatic, with air brakes and Airliner 21,000-pound rear air suspension.
How much can the Dynamax DX3 tow?
The DX3 has a 20,000-pound trailer hitch with a 2,000-pound tongue rating and a 7-way round tow connection. That's enough for a stacker trailer, a race car hauler, a sizeable boat, or a large enclosed trailer. Always confirm trailer weight against the coach's actual GCWR before towing.
Is the Dynamax DX3 a Super C?
Yes, the DX3 is a Super C diesel motorhome. It uses a Freightliner M2 medium-duty truck chassis with the Cummins L9 diesel and includes a cab-over front cap (or cab-over bunk with the optional extended cap). That classifies it as a Super C rather than a Class A diesel pusher.
What's the difference between the Dynamax DX3 and the Dynamax Europa?
Both are Dynamax Super C motorhomes on Freightliner chassis. The DX3 runs the larger Cummins L9 with 1,150 lb-ft of torque, a 54,000-pound GCWR, a 20,000-pound hitch, air brakes, and rear air suspension. The Europa uses the Cummins B 6.7L with 800 lb-ft, a 46,000-pound GCWR, and a 15,000-pound hitch at a lower price point. Pick the DX3 for heavy towing and the longest feature list. Pick the Europa to get Super C capability for less.
What floor plans does the Dynamax DX3 come in?
Motor Home Specialist offers the Dynamax DX3 in five floor plans: the 32KD, the 34KD, the 37BD, the 37RB, and the 37TS. The 32KD is the shortest length with standard theater seating and an induction cooktop. The 34KD has a tri-fold sofa standard. The 37BD is the family bunk floor plan with twin rear bunks. The 37RB has a dual-sink full rear bath. The 37TS has a pop-up 50-inch TV with fireplace in the entertainment center.
Does the Dynamax DX3 come in a bunk model floor plan?
Yes, the DX3 37BD floor plan includes twin bunk bed mattresses (28 by 76 inches each) with a privacy partition and two bunk CD/DVD players with monitors. An optional extended fiberglass front cap with a 50-by-79-inch cab-over bunk and privacy curtain adds another sleeping spot on any floor plan.
Does the Dynamax DX3 come with solar?
Yes, every DX3 comes standard with a 200-watt glass solar panel with a 30-amp controller, dual 12V 8D AGM house batteries (490 amp-hours total), a 3,000-watt hybrid pure sine wave inverter/charger, and an 8 kW Onan diesel generator with auto-gen start. The optional Xplorer Package upgrades to lithium house batteries and a 1,000-watt solar package.
How much does a Dynamax DX3 cost?
Motor Home Specialist offers industry-leading discount pricing on every new Dynamax DX3 for sale, well below MSRP, so you save thousands compared to other Dynamax dealers. Pricing varies by floor plan and selected options. Contact MHSRV for current pricing on in-stock units.
Where can I buy a Dynamax DX3?
Motor Home Specialist in Alvarado, Texas is the #1 Dynamax RV dealer in the country and stocks one of the largest selections of new and used Dynamax DX3 Super C motorhomes for sale anywhere. MHSRV serves DX3 buyers nationwide and offers in-house financing, trade-ins, and full-service support after the sale.
Manufacturer options, features, colors, etc. can all change without notice and MHSRV assumes no responsibility for the changes or possible errors in information provided by the manufacturer. All weights and measurements are approximate and not guaranteed to be 100% accurate. For the latest information be sure to check with your salesperson and/or the coach manufacturer and verify before purchase.
