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New 2023 Grand Design Momentum 399TH

Toy Hauler Fifth Wheel

Stock #23T8546

Longmont Sales

1 of 24

+24

SALE PRICE: $126,980
MSRP: $179,225
You Save: $52,245

Payments From: $1,027 /mo.

Sleeps 3
3 Slides
Kitchen Island

Bath and a Half

43ft Long
15,900 lbs
SILVER MAPLE

See All Specs

Specifications

Sleeps	3	Slides	3
Length	43 ft 1 in	Ext Height	13 ft 5 in
Interior Color	SILVER MAPLE	Hitch Weight	3400 lbs
GVWR	20000 lbs	Dry Weight	15900 lbs
Fresh Water Capacity	140 gals	Grey Water Capacity	104 gals
Black Water Capacity	104 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	13 ft
LP Tank Capacity	60 lbs	Water Heater Capacity	12 gal
Water Heater Type	Gas/Electric	TV Info	LR 49" LED TV, BR 32" LED TV, Garage 32" LED TV, Ext. LED TV
Awning Info	14' & 16' Power w/LED Lights	Axle Count	3
Washer/Dryer Available	Yes	Shower Type	Sunken Tub/Shower
Electrical Service	50 amp	VIN	573FM4536PBB00316

Description

Grand Design Momentum fifth wheel toy hauler 399TH highlights:

Fold-Down Side Patio
13' Garage
Bath and a Half
Dual Entry
Island with Bar Stools
60 Gallon Fuel Tank

Get ready for a lot of fun when you head out to the off-road park, a special event, or a long trip with your toys! You will love the garage with the Fast Ramp rear ramp door, the Ram-Air garage vents on both sides, the 2,500 lb. rated flush-mount tie-downs and the protective diamond plate on the garage sidewalls. This area can become a bedroom or an extra living area if you want to add Happi-Jac rollover sofas/table with top bed option, plus you will already have a half bath for convenience, an LED TV and storage for your gear. The living and kitchen area is spacious with dual slides and a kitchen island with bar stools, a free standing table and theatre seating or choose the super sofa option, and everything you need to feed everyone. And the fold-down side patio offers an LED TV, storage and a great place to relax outdoors above ground. There are many more features to enjoy, and several options to customize your fifth wheel. And if you would prefer to have a residential refrigerator, you should check out model 399TH-R!

The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the thermal roof design, the full-laminated walls, the triple insulated garage floor in most toy haulers, the insulated gooseneck and the Rail-Tite underbelly seat. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, raised panel hardwood cabinet doors with hidden hinges, a sofa with headrest and removable swivel tables which include heat, massage and LED lighting package, and a central vacuum system with tools and dust pan. Start your extreme playtime now with a Momentum!

Call Us Today At 303-532-2420

Features

Standard Features (2023)

Exterior

Keyed Alike™ Ramp Door Latches
2nd Patio Awning w/ LED Lights
3rd Awning w/ LED Lights (Main Slide - 397THS & 410TH)
Interior Color Changing LED Accent Lighting
High-Gloss Gel Coat Exterior Sidewalls
Door Side Exterior Spray Port
Frameless Tinted Windows
Walk-On Roof
17.5" Spare Tire (Undermount)
Solid Step Quad Entry Step
Slam-Latch Baggage Doors
Mo-Secure

Construction

101" Wide Body Construction
5-Side Aluminum Cage Construction
Fully Enclosed and Heated, Underbelly and Storage Area

Running Gear

Upgraded Axle Hangers
Heavy Duty H-Rated Tires w/NitroFill™
Heavy Duty 7,000 lb. Axles with ABS Brakes
17.5" H-Rated Aluminum Wheels
MORryde® CRE3000 Suspension System
Anti-Lock Brake System

Frame & Chassis

6-Point Hydraulic Leveling System
MORryde® Pin Box
101" Wide Body Super Chassis w/Drop-Frame Storage

Interior

Interior Color Changing LED Accent Lighting
Hardwood Cabinet Doors w/Hidden Hinges
Sofa w/Headrest (Includes Heat, Massage & LED Lighting Package
Central Vacuum System w/ Tools and Dust Pan
Plywood Drawer Bottoms

Kitchen

Microwave
Residential Kitchen Faucet
Professional Grade Stainless Steel Cooktop
12-Volt High Power MaxxAir w/Rain Sensor
Window Behind Range
Kitchen Barstools w/ Extended Countertops (397THS, 399TH, 410TH only)

Electrical

Solar Prep (10 gauge wiring with universal MC4 connectors)
75 Amp Converter
12V Battery Disconnect

HVAC

12V High Power Fan (Kitchen)
35k BTU High Capacity Furnace
Fireplace w/ 5,000 BTU Electric Heater
StealthAC Smart AC System
Attic Vent
High Capacity Heat Ducts

Plumbing

Exterior Spray Port (Door Side)
12V Tank Heaters
Sewer Hose Storage Area
Whole House Water Filtration System
All-In-One Enclosed and Heated Utility Center

Bedroom

Under Bed Storage Area (N/A 376THS)
Individually Switched Reading Lights Over Bed
Bedside 110-Volt & USB Outlets
Window Above Master Bed Headboard
60" X 80" Queen Bed Pillow Top Bed Mattress

Bathroom

Skylight Above Shower
Porcelain Toilet
Medicine Cabinet w/Mirrored Door (N/A 410TH)
Undermount Lav Sink
One-Piece Fiberglass Shower w/Glass Door & Teak Bench Seat

Appliance

Fireplace with Electric Heater
Stainless Steel 20 Cu. Ft. Refrigerator
30" Over-The-Range Microwave

Electronics

OneControl™ System
Back-Up Camera Prep
Exterior Cable/SAT Plug-In
LED Smart TV in Living Area
LED TV in Bedroom
Rockford Fosgate Stereo Entertainment System w/HDMI and App Controls
Exterior Speakers
No-Crank Digital TV Antenna w/Booster
LED TV in Garage (N/A 376THS)

Packages

Exterior Package

Satellite TV Prep (All TV Locations)
Aluminum Quad Entry Steps - Garage Entry (N/A 376THS)
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 376THS)
Full Paint Gel Coat Fiberglass Front Cap (376THS, 397TH, 399TH only)
Solid Step Quad Entry Step - Main Entry

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 376THS)

Garage package

32" Class LED TV in Garage (397TH and 399TH only)
Protective Diamond Plate on Garage Sidewalls
2,500 lb. Rated Flush-Mount Tie-Downs
Ram-Air Garage Vents Both Sides (N/A 376THS)
Tuff-Ply Gas and Oil Resistant Garage Flooring
Fast Ramp Rear Ramp Door (N/A 376THS)
Triple Insulated Garage Floor (N/A 376THS)

Weather-Tek Package

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

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All the staff at the show was wonderful and very knowledgeable. We have been very pleased with our entire experience and will recommend Windish to our friends.

Erin
friendly and knowledgeable
These guys are great. Zach worked with us to get the best deal and the right unit for us RV virgins. Everyone we met, from the parts department to the finance department to the walk-through tech, was friendly and knowledgeable. Would absolutely recommend Windish RV to a friend.

Sterling from Denver, CO
Very Knowledgeable
We dealt with Tim Dunn as our sales rep. Tim was very knowledgeable and was not at all pushy. Our overall experience with windish was great . Even the service dept, we had a few things come up on our new grand designs imagine, but the service dept was helpful . after a little time they took care of ... More »

Chris

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Windish RV 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 pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @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.

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.

New 2023 Grand Design Momentum 399TH

399TH Floorplan

Specifications

Description

Features