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
Motor Home SpecialistThe #1 Volume Selling Motor Home Dealer in the World!*
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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, built on the Freightliner® M2 106 Plus chassis with the Cummins L9 turbo diesel. Buyers who want commercial-grade chassis components and serious tow capacity for a stacker trailer, race car hauler, large boat, or enclosed trailer will find the DX3 targets that use case directly. It also fits full-time RV owners who want a Super C with a heavier chassis, air ride suspension, and a longer list of luxury interior finishes than typical Super C platforms.
The DX3 is built on the Freightliner M2 106 Plus chassis with a 33,000-pound GVWR and a 54,000-pound GCWR. Power comes from the Cummins L9 turbo diesel rated at 360 horsepower and 1,150 lb-ft of torque, paired 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 fuel tanks total 100 gallons of fuel capacity. A 20,000-pound trailer hitch with 2,000-pound tongue rating and 7-way round connector handles tow loads. 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 handle stopping and ride quality. Cockpit features include 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), the Mobileye Collision Avoidance System, the Sony 10.1-inch HD touchscreen dash infotainment with wired and wireless Apple CarPlay® and Android Auto™, the JBL Premium Cab Sound System tuned for the M2, an 18-inch leather-wrapped steering wheel, an adjustable steering column, power and heated exterior mirrors, an air horn, and 3-point seatbelts.
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. Outside features include custom full-body paint with scheme-matching cab door jambs and a premium cut-and-buffed finish, front-end Diamond Shield paint protection, a roof-mounted integrated armless patio awning with LED lighting and wind sensor, aluminum-wrapped slideout toppers, an LED patio light, an entry door with a dark-tinted frameless window and integrated shade, a keyless entry touch pad, the remote locking system for exterior storage doors and entry door (standard starting at DXC007159), a lighted acrylic entry grab handle, power entry steps with SeaDek treads, polished stainless steel cab step treads, and front and rear LED clearance and marker lighting along with rear LED docking lights. The exterior wall-mounted entertainment center pairs a 40-inch LED Smart TV with an integrated JBL soundbar on a swivel extension mount. Dual-pane dark-tinted frameless square windows include built-in night shades and screens. Seamless rotocast storage compartments include LED lighting and side-hinged locking aluminum doors with paddle latches. Automatic 4-point hydraulic leveling jacks are standard.
Climate control runs dual ducted low-profile 15,000 BTU rooftop air conditioners with heat pumps, the Aqua-Hot® 400D diesel hydronic heating and water system, and Aqua-Hot heated basement storage and holding tanks. Power management includes an 8 kW Onan® diesel generator with auto transfer switch (mounted on isolator pads), an automatic generator start, dual 12V 8D AGM deep-cycle maintenance-free 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, 50-amp service with a 36-foot power cord reel, an Energy Management System, the Firefly Multiplex command system with touchscreen, switch panels, and a Bluetooth mobile app, a 20.3-gallon LP tank with LP quick-connect, a Thetford® Sani-Con® Turbo macerator system, a black tank flush, the SureLevel tank level monitoring system, an upgraded 12V on-demand water pump rated at 4 gallons per minute, an exterior shower in the service bay, and a power water hose reel.
The interior runs luxury vinyl tile flooring throughout, 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. Living area entertainment varies by floor plan: the 32KD, 34KD, and 37RB use a 42-inch LED Smart TV with a JBL soundbar; the 37BD uses a 39-inch LED Smart TV; and the 37TS uses an entertainment center with a pop-up 50-inch LED Smart TV and a fireplace.
The galley pairs solid-surface countertops with LED edge lighting, a solid-surface backsplash, a stainless steel sink with solid-surface covers, a residential stainless gooseneck faucet, a pantry, overhead cabinet accent lighting, under-cabinet lighting, a convection microwave with air fryer functionality, and a MaxxAir® power vent with built-in rain cover. Refrigeration depends on floor plan: the 32KD uses a 16-cubic-foot residential refrigerator with ice maker, while the 34KD, 37BD, 37RB, and 37TS use an 18-cubic-foot residential refrigerator with ice maker. Cooktop choice also varies: the 32KD uses an induction cooktop, while the other floor plans use a sealed gas range with glass cover. An optional 12V 15-cubic-foot 3-door compressor-driven refrigerator is available in place of the standard 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 32KD does not include the bedroom JBL soundbar; the other floor plans do. The 37BD adds bunk bed mattresses (28 by 76 inches each) with a privacy partition and two bunk CD/DVD players with monitors, making it the family-friendly floor plan in the lineup. Bathroom amenities include a 30-by-36-inch solid-surface shower surround with a glass door, shower 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 (the 37RB has two sinks in the full rear bath), and a MaxxAir power vent with built-in rain cover. Toilet configuration depends on floor plan: the 37BD and 37TS use porcelain foot-flush toilets, while the other floor plans use porcelain electronic-flush macerator toilets.
At MHSRV, the DX3 is offered in five floor plans: the 32KD, the 34KD, the 37BD, the 37RB, and the 37TS. The 32KD is the shortest length and uses an induction cooktop, dual power reclining theater seats in place of the sofa as standard, and combo washer/dryer prep. The 34KD has a tri-fold sofa standard and offers an optional three-seat power reclining theater seating package. The 37BD is the family bunk floor plan with twin rear bunks, a privacy partition, and the smallest of the available living-area TVs at 39 inches. The 37RB is the rear-bath floor plan with a dual-sink full bath. The 37TS uses the entertainment center with the pop-up 50-inch TV and fireplace. Optional equipment available across the lineup includes 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, the All-Electric Package (induction range with an exterior storage compartment replacing the LP tank), and the Xplorer Package (insulated cab curtain, lithium house battery upgrade, 1,000-watt solar package, insulated utility bay, and access to Xplorer-exclusive paint schemes).
Click here to read Dynamax DX3 reviews from verified MHSRV customers.
For shoppers 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, and it's available in five floor plans across short and long lengths.
What chassis is the Dynamax DX3 built on?
The DX3 is built on the Freightliner M2 106 Plus chassis with a 33,000-pound GVWR and a 54,000-pound GCWR. It uses the Cummins L9 turbo diesel rated at 360 horsepower and 1,150 lb-ft of torque, an Allison 3200 TRV 6-speed automatic transmission, air brakes with 4-wheel ABS, 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 to tow a stacker trailer, a race car hauler, a sizeable boat, or a large enclosed trailer. Always confirm trailer and tow vehicle 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), which classifies it as a Super C rather than a Class A diesel pusher.
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 is also available across the lineup as an additional sleeping spot.
Does the Dynamax DX3 come with solar?
Yes, every DX3 comes standard with a 200-watt glass solar panel with a 30-amp controller, paired with dual 12V 8D AGM deep-cycle house batteries (490 amp-hours total), a 3,000-watt hybrid pure sine wave inverter/charger, an 8 kW Onan diesel generator with auto-gen start, and 50-amp service with a 36-foot power cord reel. The optional Xplorer Package upgrades to lithium house batteries and a 1,000-watt solar package.
What is the bedroom like in the Dynamax DX3?
Every DX3 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 tops, LED reading lights, and USB/USB-C charging ports. The 34KD, 37BD, 37RB, and 37TS floor plans add a JBL soundbar in the bedroom.
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.
What standout features come on the Dynamax DX3?
Notable features include the Freightliner M2 106 Plus chassis with the Cummins L9 diesel, Airliner 21,000-pound rear air suspension, Bilstein front shocks, the C-Brake by Jacobs, the Mobileye Collision Avoidance System, the Quad-View camera system, the Aqua-Hot 400D diesel hydronic heating system, dual ducted 15,000 BTU rooftop A/C with heat pumps, hand-laid luxury vinyl tile flooring, hardwood raised-panel cabinetry with full-extension soft-close drawers, a 71-by-78-inch king bed with gel memory foam, automatic 4-point hydraulic leveling jacks, an 8 kW Onan diesel generator, the Firefly Multiplex coach control system with mobile app, optional cab-over bunk with extended front cap, and the optional Xplorer Package with lithium batteries and 1,000-watt solar.
Where can I buy a Dynamax DX3?
Motor Home Specialist in Alvarado, Texas is the #1 volume-selling Dynamax dealer in the world and stocks one of the largest selections of new and used Dynamax DX3 Super C motorhomes for sale anywhere in the country. MHSRV ships DX3 motorhomes to customers 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.
