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Image #1 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #2 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260 - Floorplan
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Image #3 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #4 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #5 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #6 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #7 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #8 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #9 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #10 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #11 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #12 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #13 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #14 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #15 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #16 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #17 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #18 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #19 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #20 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #21 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #22 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #23 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #24 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #25 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #26 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #27 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #28 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #29 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #30 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #31 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #32 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #33 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #34 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #35 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #36 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #37 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #38 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #39 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #40 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
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Image #41 - New 2026 Dynamax DynaQuest XL 3400KD Motor Home Super C - Diesel - Stock #6260
- SALE PRICE: $353,432
- MSRP: $504,903
- Savings: $151,471
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37ft long
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Sleeps 6
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2 slides
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Cummins L9 - 8.9L
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450 HP
3400KD Floorplan
Specifications
| Sleeps | 6 | Slides | 2 |
| Length | 37 ft 2 in | Ext Width | 8 ft 5 in |
| Ext Height | 12 ft 9 in | Int Height | 7 ft |
| Interior Color | DRIFTWOOD - MILANO DECOR | Exterior Color | XPLORER DARK |
| Hitch Weight | 20000 lbs | GVWR | 33000 lbs |
| Fresh Water Capacity | 94 gals | Grey Water Capacity | 52 gals |
| Black Water Capacity | 52 gals | Tire Size | 275/80R22.5 |
| Generator | 8kW Onan Diesel | Fuel Type | Diesel |
| Miles | 1204 | Engine | Cummins L9 - 8.9L |
| Chassis | Freightliner M2 112 | Horsepower | 450 hp |
| Fuel Capacity | 100 gals | Wheelbase | 268 in |
| Number Of Bunks | 1 | Available Beds | King |
| Torque | 1250 ft-lb | Refrigerator Type | Residential w/Ice Maker |
| Refrigerator Size | 24 cu ft | Convection Cooking | Yes |
| Cooktop Burners | 2 | Number of Awnings | 2 |
| Axle Weight Front | 12000 lbs | Axle Weight Rear | 21000 lbs |
| Water Heater Type | Aqua Hot On Demand | AC BTU | 30000 btu |
| TV Info | LR 42" LED Smart TV, BR 32" LED Smart TV, Ext. 32" LED Smart TV | Awning Info | 25' 6" Power Armless w/LED Lighting and Wind Sensors |
| Washer/Dryer Available | Yes | Gross Combined Weight | 54000 lbs |
| Shower Type | Radius | Electrical Service | 50 amp |
| VIN | 1FVAC4FE8THWP4784 |
Description
Dynamax DynaQuest XL Super C diesel motorhome 3400KD highlights:
- Freightliner M2 112 Plus Chassis
- Cummins L9 - 450Hp / 1,250 lb-ft of Torque
- 20,000 Lbs Towing
- Cab-Over Bed
- Blackout Package
- 79" Theater Seats
- Stacker Washer / Dryer Prep
- Exterior Entertainment
- Residential Refrigerator
- Xplorer Package: Lithium Ion Batteries (540Ah) - Solar (1,000 Watts) - Enhanced Insulation (Heated Bays, Thermal Foil Insulation, Dual Pane Windows, Insulated Cab Curtains.
You will have everything you need for a comfortable trip in this motorhome! The rear private bedroom has a king bed slide across from a dresser with a 32" TV above it and wardrobes on either side. With the separated bathroom, one person can freshen up with the private toilet and radius shower while another washes up with the sink next to the area prepped to add an optional washer and dryer. Prepare your best meals with the two burner cooktop and countertop extension, then enjoy them at the Dream Dinette. The dinette and tri-fold sleeper sofa can transform into extra sleeping spaces, and if you need more sleeping spaces then you can choose to add the optional bunk over cab. Watch the big game outside with the 32" TV at the exterior entertainment center while staying protected by the power armless awning with LED lighting!
You will have the perfect combination of brute force and refined living with each one of these Dynamax DynaQuest XL Super C diesel motorhomes! A Freightliner M2 112 chassis holds these units together, a Cummins L9 turbo diesel engine with 450 HP powers them, and twin 50 gallon aluminum fuel tanks help them go farther. An Equiflo inboard fuel system creates dual supply and dual return, and the diesel Aqua Hot 450D system provides continuous hot water, as well as preheats the engine. The seamless, easy-clean rotocast storage compartments have LED lighting for you to see at night and remote locking doors. A few other features you will appreciate include a water filtration system, multiplex wiring with a touch screen command center with Bluetooth phone app control, and an exterior shower in the service bay to keep the dirt outside where it belongs. Come see all of the many luxurious features that will make every one of your trips comfortable and fun!
Features
Standard Features (2026)
Chassis
- Freightliner M2 112 PLUS Chassis (33,000-lbs. GVWR / 54,000-lbs. GCWR)
- Cummins L9 Turbo Diesel Engine (450hp / 1,250 lb-ft. of Torque)
- Allison 3200 TRV Six-Speed Automatic Transmission
- 4.78 Rear Axle Ratio
- Trailer Hitch (20,000 Tow lbs. / 2,000 Tongue lbs.) with 7-Way Round Tow Connection
- 100-Gallon Fuel Capacity (Twin 50-Gallon Aluminum Fuel Tanks) with Equiflo Inboard Fuel System
- 6-Gallon Diesel Exhaust Fluid Tank
- 275-amp Alternator
- Air Brakes with 4-Wheel ABS
- Fuel Filter/Water Separator with Primer Pump
- C-Brake by Jacobs with High/Low Settings
- Brake Controller
- Airliner 21,000-lb. Rear Air Suspension
- Manual Air Suspension Dump Valve Switch on the Dash
- Rear Locking Differential
- Active Brake Assist
- Front Collision Warning
- Lane Departure Warning
- Cruise Control
- Steel-Reinforced, Aluminum Cab
- Chrome Grille
- LED Headlights
- Fog Lights
- Daytime Running Lights
- Tinted Door Glass and Wing Windows
- 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
- Quick Disconnect Fitting with Tire Inflation Kit
- Engine Block Heater
- 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
- 12V Accessory Ports
- Chassis Battery Shut Off Switch in Cab
- Dual Air Horns
- 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
- Adjustable Steering Column
- 18" Leather-Wrapped Steering Wheel
- Power and Heated Exterior Mirrors
- Power Windows and Locks
- 3-Point Seat Belts
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 Built-In Night Shades & Screens
- Seamless Rotocast Storage Compartments with LED Lighting
- Side-Hinged, Locking Aluminum Exterior Storage Doors with Chrome Handles
Exterior
- Custom Full Body Paint Package with Scheme-Matching Cab Door Jambs & Slideout Sides
- Premium Cut and Buffed Paint Finish
- Front-End Diamond Shield® Paint Protection
- Dual Roof-Mounted, Integrated Armless Patio Awnings with LED Lighting and Wind Sensors (Single Awning - 3200KD)
- Aluminum-Wrapped Slideout Toppers
- LED Patio Light
- Entry Door with Rotary Latch; Dark-Tinted, Frameless Window; and Integrated Shade
- Keyless Entry Touch Pad at Entry Door
- Remote Locking System for Exterior Storage Doors & Entry Door
- Lighted Acrylic Entry Grab Handle
- Power Entry Steps with Upgraded SeaDek® Step Treads
- Polished Stainless Steel Step Accents (N/A with Optional Black Out Package)
- 1.55 cu. ft. Portable Truma Cooler (Refrigerator/Freezer) on Sliding Tray in Exterior Storage Bay (3200KD)
- 2.43 cu. ft. Portable Truma Cooler (Refrigerator/Freezer) on Sliding Tray in Exterior Storage Bay (N/A - 3200KD)
- Exterior Wall-Mounted Entertainment Center with 40" LED Smart TV with Integrated JBL Sound Bar on Swivel Extension Mount
- Front and Rear LED Clearance and Marker Lighting
- Rear & Side Docking Lights
- Rear “DYNAMAX” Rock Guard
- Polished Stainless Rear Tail Light Accents
- Molded Fiberglass Cab Step Covers with Polished Stainless Steel Step Treads
- Dual Chrome Roof-Mounted Air Horns
- Chrome Exhaust Tip
Interior
- Luxury Vinyl Tile Throughout
- Soft-Touch Padded Vinyl Ceiling
- Luxury Vinyl Tile Entry Surround
- Dimmable LED Recessed Ceiling Lights
- Sprung, Residential Style Dinette Seats with Lift Up Storage
- Tri-Fold Sofa (N/A - 3200KD)
- Dual, Power Reclining Theater Seats in Place of Sofa (3200KD)
- Hardwood Raised Panel Cabinetry with Five-Piece Drawer Fronts
- Hardwood Shaker-Style Passage Doors
- Full Extension, Soft-Closing Drawer Guides (where applicable)
- Dovetail Joints on Cabinet Drawers
- Hidden Hinges
- 42" LED Smart TV (Living Area) (N/A - 3700BD & 3801TS)
- 39" LED Smart TV (Living Area) (3700BD Only)
- Entertainment Center with Pop-Up 50" LED Smart TV and Fireplace (3801TS Only)
- Bose Sound System
- Magnetic Thermal, Reflective Front Privacy Shades
- USB/USB-C Charging Ports
Kitchen
- 24 cu. ft. Residential Refrigerator with Ice Maker (N/A - 3200KD)
- 16 cu. ft. Residential Refrigerator with Ice Maker and Side Pantry (3200KD Only)
- Induction Range
- Convection Microwave Oven with Air Fryer Functionality
- Solid Surface Countertops with LED Edge Lighting and Solid Surface 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
- Bose Sound Bar (N/A - 3200KD)
- Cedar-Lined Wardrobe
- Digital Safe in Wardrobe
- Nightstands with Solid Surface Countertops
- LED Reading Lights
- USB/USB-C Charging Ports
- Bunk Bed Mattresses (28" x 76") and Privacy Partition (3700BD)
- Two Bunk CD/DVD Players with Monitors (3700BD)
Bathroom
- Solid Surface Shower (36"x30")
- Teak Fold-Down Seat in Shower
- Glass Shower Door
- Shower Skylight
- Oxygenics Body Spa RV Shower Head
- Solid Surface Countertop with LED Edge Lighting and Solid Surface Backsplash
- Under-Mount Sink with Residential Brushed Nickel Faucet (3700RB: Two Sinks in Full Rear Bath)
- Porcelain Foot-Flush Toilet (3700BD & 3801TS)
- Porcelain Electronic-Flush Macerator Toilet(s) (N/A - 3700BD & 3801TS)
- MaxxAir Power Vent with Built-In Rain Cover
Utilities
- Two (2) 12V Group 8D AGM Deep-Cycle, Maintenance-Free Batteries (490aH Total)
- 200W Glass Solar Panel with 30-Amp Controller
- 3,000W Hybrid Pure Sine Wave Inverter/Charger
- 50-Amp Service with 36' Power Cord Reel
- Firefly Multiplex Wiring with Touch Screen Command Center, Switch Panels, and Bluetooth Smart Phone App Control
- 8kW Onan Diesel Generator with Auto Transfer Switch (Mounted on Isolator Pads)
- Automatic Generator Start
- Energy Management System (EMS)
- Battery Disconnect
- Dual Ducted, Low-Profile 15,000-BTU Air Conditioners with Heat Pumps
- Aqua-Hot 450D Diesel System with Engine Pre-Heat
- Combo Washer Dryer Prep (3200KD)
- Stackable Washer/Dryer Prep (N/A - 3200KD)
- Water Filtration System
- Exterior Shower in Service Bay
- Power Water Hose Reel in Service Bay
- Exterior GFCI Receptacle
- Starlink Satellite Internet System (Roof-Mounted) *Starting at DLC007192
- Winegard OTA HDTV Antenna
- KING DISH Tailgater Pro Premium HD Satellite with DISH Network Receiver *Starting at DLC007250: Winegard In-Motion Satellite
- 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, and Smoke Detectors
- Fire Extinguisher
Options
- Aerodynamic Fiberglass Front Cap with Cab-Over Cabinets
- Extended Fiberglass Front Cap with Cab-Over Bunk Mattress (50"x79") and Privacy Curtain
- Black Out Package (Cab Entry Steps; Side Mirrors; Rock Guard; Wheels; Headlight Bezels; Exterior Grab Handle Trim; Exterior Storage Door Handles; Custom Grill and Vent; and Black Stainless Lower Skirt Accents and Rear Tail Light Accents)
- Single Color Full Body Paint
- Washer/Dryer (N/A - 3200KD)
- Dual, Power Reclining Theater Seats in Place of Sofa (N/A - 3400KD & 3700RB) (Standard on 3200KD)
- Three-Seat, Power Reclining Theater Seats in Place of Sofa (3400KD & 3700RB - 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) *Starting at DLC007264: Three Lithium House Batteries (720aH Total)
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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ScottMost pleasant buying experience ever
This was by far the most pleasant buying experience I've ever had. Charlie was incredible to work with, he was extremely helpful and responsive. Everyone one from finance and management made me feel very comfortable in my decision to do business with McKee. I would highly recommend anyone to give ... More » -
BobbieHighly recommended
This team made buying a new RV quick and easy! I worked with Randy and and other members of the team and they went out of their way to make things happen. They are very customer oriented and made sure everything was perfect with our new purchase before leaving. Highly recommended! -
KellieWe had a great experience with McKee RV.
We had a great experience with McKee RV. We purchased a 2021 Forest River Sabre. We found it online and the price was a great deal. We made the 4 hour drive and the camper was exactly what it looked like in the pictures. The unit was clean and they made sure we were well taken care of. Everyone ... More »
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McKee RV Advertised pricing reflects all applicable manufacturer rebates and dealer finance discounts. Advertised prices do not include taxes, title, license fees, or dealer fees. Manufacturer images, specifications, and features may be used in place of actual units in stock. Please contact us @515-304-3673 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.
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.
