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New 2023 Grand Design Momentum M-Class 398M

Toy Hauler Fifth Wheel

Stock #23T8667

Lakewood

1 of 20

+20

MSRP: $158,886

Sleeps 5
3 Slides
Kitchen Island

Loft

44ft Long
15,000 lbs
SILVER MAPLE

See All Specs

Specifications

Sleeps	5	Slides	3
Length	43 ft 11 in	Ext Height	13 ft 5 in
Interior Color	SILVER MAPLE	Hitch Weight	2980 lbs
GVWR	20000 lbs	Dry Weight	15000 lbs
Fresh Water Capacity	140 gals	Grey Water Capacity	104 gals
Black Water Capacity	52 gals	Tire Size	17"
Furnace BTU	40000 btu	Fuel Capacity	60 gals
Available Beds	Queen	Refrigerator Size	18 cu ft
Cooktop Burners	3	Number of Awnings	2
Axle Weight	7000 lbs	Garage Size	18 ft
LP Tank Capacity	60 lbs	Water Heater Capacity	12 gal
Water Heater Type	Gas/Electric	TV Info	LR 49" LED TV
Awning Info	18' Power with LED Lights	Axle Count	3
Washer/Dryer Available	Yes	Shower Type	Sunken Tub/Shower
Electrical Service	50 amp	VIN	573FM4635PBB01164

Description

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

18' Separate Garage
Bedroom Wardrobe Slide
Four-Seat Sofa
Stowable Table
Kitchen Island w/Bar Stools
Dual Entry Doors
Universal Docking Station

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 setup 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 extended countertop and two bar stools, a pantry, a 49" 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 and a table with a top bed if you want seating and sleeping space, plus there is storage, a prepped space to add a washer/dryer option, and an optional half bath. 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 savings sliding door, and the front bedroom can be your escape. There is a queen bed, a slide out wardrobe and USB charging outlets. If you want less garage space, take a look at 349M!

The Momentum M-Class fifth wheel toy haulers by Grand Design are lighter than the Momentum yet aren't lightweight on features when it comes to elegant design, luxury and a "Class" of its own! The chef-inspired kitchen provides a free-standing 3.7 cu. ft. gas range, a four burner cooktop with cast iron grill, an electronic ignition oven, and a digital display and interior oven light, plus 42,500 BTU of cooking power. The upgraded main bathroom offers solid surface counter tops, a three-jet shower panel system, a shower wand, and a teak bench seat. Each toy hauler includes a triple insulated garage floor, Tuff-Ply gas and oil resistant garage flooring, 2,500 lb. rated flush-mount tie-downs, and a Fast Ramp rear ramp door with two-sided lift-assist technology making it easy for one person to operate. And the MORryde CRE3000 suspension system and the rubber pin box, plus the upgraded axle hangers provide performance and smooth towing to your favorite destinations!

Call Us Today At 303-274-9009

Features

Standard Features

Exterior

Under Mount 17” Spare Tire
6-Point Hydraulic Leveling System
Dual Pane Window Upgrade (Optional)
Back-Up Camera (Camera Prep Standard) (Optional)
Slide-Out Awning Toppers (Optional)
Keyed Alike™ Ramp Door Latches
2nd Power Patio Awning w/ LED Lights
3rd Power Awning w/ LED Lights (Main Slide - 395MS) (Mandatory)
Front and Back Under Unit Blue LED Light Kit (Mandatory)
High-Gloss Gel Coat Exterior Sidewalls
Full Body Paint (Optional)
Door Side Exterior Spray Port

Construction

Straight Frame Chassis (12")
MORryde® CRE3000 Suspension System
Upgraded Axle Hangers

Interior

Interior Color Changing LED Accent Lighting
Raised Panel Hardwood Cabinet Doors w/Hidden Hinges
Sofa w/Headrest & Removable Swivel Tables (Includes Heat, Massage & LED Lighting Package)
Central Vacuum System w/ Tools and Dust Pan
Super Sofa Upgrade - IPO Theatre Seats & Dinette (395MS) (Optional)
Plywood Drawer Bottoms

Kitchen

Microwave
18 Cu. Ft. Refrigerator
30" Stainless Steel Microwave w/ Ext. Vent
Residential Kitchen Faucet
Window Behind Range (349M, 351M, 381MS, 398M)
Kitchen Barstools w/ Extended Countertops (349M, 351M, 381MS, 398M only)

Bedroom

Residential Style Headboard
Under Bed Storage Area
Individually Switched Reading Lights Over Bed
Bedside 110-Volt Outlets
60" X 80" Queen Pillow Top Bed Mattress
King Bed Upgrade (Optional)

Bathroom

One-Piece Fiberglass Shower w/Glass Door
Skylight Above Shower
Porcelain Toilet
Medicine Cabinet w/Mirrored Door

Audio & Video

Rockford Fosgate Speaker Package w/12" Sub and 300W Amp (Optional)
No-Crank Digital TV Antenna w/Booster
Satellite/Solar Roof Access Channel
TV Prep in Garage
Exterior Entertainment Center w/LED TV (Optional)

HVAC & Plumbing

12v High Power Fan (Kitchen) (Mandatory)
12v High Power Fan - Garage (N/A with 3rd AC Option) (Optional)
12V Tank Heaters (All Tanks)
35k BTU High Capacity Furnace
Fireplace w/ 5,000 BTU Electric Heater
Middle/Main A/C
2nd A/C - Bedroom (Mandatory)

Garage

Rear Cargo Loading & Backup LED Lights
Quick Set Ramp Door Patio System w/ Power Awning (Optional)
3-Season Garage Wall (NA w/ Pull Down Garage Screen Wall) (Optional)
Happi-Jac Electric Bunk System w/Folding Sofas (Optional)
Patio Steps (Optional)

Utilities

OneControl™ 7" Touchscreen Control Panel w/App Controls and Redundant Slide Switches
Generator Prep
Solar Prep (10 gauge wiring with universal MC4 connectors)
Solitude Solar System (300w Solar Panel, Controller, 2000w Inverter) (Optional)

Exterior Package - Mandatory

Satellite TV Prep (All TV Locations)
Aluminum Quad Entry Steps - Garage Entry
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
Partial Paint Gel Coat Fiberglass Front Cap
Solid Step Quad Entry Step - Main Entry

Garage Package - Mandatory

Protective Diamond Plate on Garage Sidewalls
2,500 lb. Rated Flush-Mount Tie-Downs
Ram-Air Garage Vents Both Sides
Tuff-Ply Gas and Oil Resistant Garage Flooring
Fast Ramp Rear Ramp Door
Triple Insulated Garage Floor

Interior Package - Mandatory

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

Weather-Tek Package - Mandatory

R-Value Equivalent (R-40 Roof / R-45 Floor / R-11 Sidewalls / R-40 Garage Floor / R-24 Slide room 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

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.

Favorite RVs

Save your favorite RVs as you browse. Begin with this one!

Best price in the country on the Voltage toyhaulers. Great staff and the service department did a fantastic job with the extra installs for us. We will be telling everyone about Windish RV.

robert
I would recommend Windish in the future.
Just a quick note to express my satisfaction with Airstream and Windish.
Manny (my sale consult) did a professional job and has continued contact to ensure my satisfaction. He has been a resource for any question I may have.
YES I would recommend Windish in the future.

Steven from Evergreen, CO
Fast Turn Around and Good Experiences
I have done business with Windish for several years, purchasing three 5th Wheels from Corey, who along with Zach have always been great to us. I agree that the service department had challenges in the past, and I too was greatly frustrated in the slow turn around and errors. But now with Ty as the new ... More »

Paul

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Airstream of Colorado 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-provided pictures, specifications and features may be used as needed. Inventory shown may be only a partial listing of the entire inventory. Please contact us at 303-274-9009 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.

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New 2023 Grand Design Momentum M-Class 398M

398M Floorplan

Specifications

Description

Features