Grand Design Momentum M-Class toy hauler 398M highlights:

• 18' Separate Garage
• Bedroom Wardrobe Slide
• Four-Seat Sofa
• Kitchen Island with Bar Stools
• Dual Entry Doors
• Flip Up Pet Dish

Load up your toys, gear, clothes and food to enjoy some off-road fun with your toys and friends! Once at the RV park, unload your toys and set up the three slide outs, the two awnings, and begin planning your trail rides! You might decide to make a meal or snack in the combined kitchen and main living area which offers all the appliances you need, plus a kitchen island with two bar stools, a pantry, an LED TV with a fireplace below, plus a slide out four-seat sofa. The garage even offers the option to add two Happi-Jac rollover sofas with tables with a top bed if you want seating and sleeping space. The overhead loft bed provides sleeping space as well. You will love the sunken tub/shower with a seat in the full bathroom with a space saving sliding door, and the front bedroom can be your escape. There is a queen bed, a slide out wardrobe and USB charging outlets.

With any Momentum M-Class toy hauler by Grand Design, you will enjoy luxury at every turn! They have been constructed to a superior standard with a thermal roof design, triple insulated main floor and garage floor, and a Rail-Tite underbelly seal that will allow you to camp in all elements. Each model also features an 8' 5" wide body chassis with a wide rail design, no wheel wheels, and a dovetail entry for easier loading. The Stealth A/C system provides maximum cooling power, and the CRE3000 suspension system means you can enjoy a smooth tow each time. You will love the luxurious interior with a professional grade stainless steel cooktop, interior color changing LED accent lighting, a fiberglass shower with a glass door, and solid surface countertops. 

INCLUDED PACKAGES & OPTIONS
M-Class Luxury Interior Package
M-Class Exterior Package
M-Class Garage Package
Weather-Tek Insulation Package
Under Unit LED Light Kit
Bedroom A/C
3rd A/C Prep
Kitchen Power Fan w/Rain Sensor
Garage LED HD TV
Auxiliary Fresh Water Tank
20 Cu. Ft. 12V Refrigerator (+ Inverter Prep, 330W Solar Panel, 50 Amp Controller, Bluetooth Module and Two (2) Dock Ports) TraviFi On-Board WiFi Ready
SafeRide RV Roadside Assistance
Upgraded Cooper H-Rated Tires w/ 17.5" Wheels (Triple Axle)
Rockford Fosgate Stage 1 Stereo - 500 Watts, Int/Ext Speakers w/10" Powered Sub
Yamaha Generator - 6kw Gasoline Generator
Gen II 3 Season Door with Sliding Windows
3rd A/C
Heat Pump A/C
Happi-Jac Electric Bunk System w/Folding Sofas
Rear Aluminum Deck System w/Rear Power Awning
Momentum Patio Chairs
Exterior Entertainment Center
Solar + Package (One (1) Additional 330W Panel & 2000W Inverter)
7K Axle w/ABS Drum Brakes (Triple Axle)
Winterization
RVIA Seal

Luxury Interior Package
49" Class LED TV in Living Area
Stereo Entertainment System w/Bluetooth and App Based Controls in Living Area
Washer/Dryer Prep
12 Gallon Gas/Electric Water Heater
Roller Shade Window Coverings (Main Living Area and Bedroom)
Recessed LED Puck Lighting
Solid Surface Countertops w/ Sink Covers
Stainless Steel Undermount Kitchen Sink
Chef Inspired Range & Oven w/ Cover
Kitchen Pantry w/ LED Light Strip
Garage Control Panel (N/A 336M)

Exterior Package
Satellite TV Prep
Aluminum Quad Entry Steps - Garage Entry (N/A 336M)
7,000 lb. Axles w/Self Adjusting Brakes, Wet Bolts and Bronze Bushings
17 Aluminum Wheels (120PSI Rated)
Cooper Tires® 17.5" All-Steel H-Rated Tires
Slam-Latch Baggage Doors
Frameless Tinted Windows
Aluminum Quad Entry Steps - Main Entry
Exterior Security Lights
Power Patio Awning w/LED Lighting
Folding Roof Ladder
White Gel Coat Fiberglass Front Cap
12V Battery Disconnect
All-In-One Exterior Utility Center
50 Amp Service
Converter
Enclosed Fuel Station w/ Dual Fuel Tank (Single Tank 336M)
Partial Paint Gel Coat Fiberglass Front Cap
Solid Step Quad Entry Step - Main Entry

Garage Package
32" Class LED TV in Garage
Protective Diamond Plate on Garage Sidewalls
2,500 lb Rated Flush-Mount Tie-Downs
Ram-Air Garage Vents on Both Sides (N/A 336M)
Tuff-Ply Gas and Oil Resistant Garage Flooring
FastRamp Rear Ramp Door (N/A 336M)
Triple Insulated Garage Floor (N/A 336M)

Weather-Tek Insulation Package
R-Value Equivalent (R-40 Roof / R-45 Floor / R-11 Sidewalls / R-40 Garage Floor / R-24 Slideroom Floor)
Fully Enclosed and Heated, Underbelly and Storage Area
Enclosed and Heated Low Point Drains
Engineered Underbelly Airflow Heat Paths
Stealth AC System w/ Insulated A/C Ducts
Attic Vent
Plumbing Line Insulation Barrier