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New 2026 Grand Design Momentum 392M

Toy Hauler Fifth Wheel

Stock #52373

Thurmont, MD

1 of 8

MSRP Price: $206,998

Payments From: $1,333 /mo.

46ft long
18,114 lbs
Sleeps 8

3 slides
Bath and a Half

Loft

See All Specs

Specifications

Sleeps	8	Slides	3
Length	45 ft 11 in	Ext Width	8 ft 5 in
Ext Height	13 ft 6 in	Int Height	8 ft 5 in
Hitch Weight	3650 lbs	GVWR	23500 lbs
Dry Weight	18114 lbs	Fresh Water Capacity	140 gals
Grey Water Capacity	104 gals	Black Water Capacity	52 gals
Tire Size	ST215/75R17.5 LRH	Furnace BTU	35000 btu
Fuel Capacity	60 gals	Number Of Bunks	2
Available Beds	Queen	Refrigerator Type	Stainless Steel
Refrigerator Size	20 cu ft	Cooktop Burners	3
Shower Size	48" x 30"	Number of Awnings	2
Axle Weight	7000 lbs	Garage Size	17 ft
LP Tank Capacity	30 lbs	Water Heater Type	Tankless
AC BTU	45000 btu	TV Info	LED TV; LR 49", Garage 32"
Awning Info	16' and 18' Power with LED Lights	Axle Count	3
Washer/Dryer Available	Yes	Number of LP Tanks	2
Shower Type	Shower w/Seat	Electrical Service	50 amp

Description

Grand Design Momentum toy hauler 392M highlights:

L-Shaped Sofa with Recline
Queen Bed
Overhead Loft Bed
Ramp Door/Patio

This toy hauler with a 17' separate garage will be perfect for your outdoor adventures. There is an adjustable tie-down system to keep your gear secure, an overhead loft bed, two Liftsuite Systems plus an optional half bath. There is also washer and dryer prep here, along with a flip-up pet dish for your furry friends. The chef will love the large kitchen countertop for more meal prep space, and there is a 20-cu. ft. refrigerator and pantry for food storage. You can get comfy on the L-shaped sofa across from the 50" TV, or get some work done at the hybrid desk/dinette. There are also dual opposing slides here for added space. The third slide out is found in the front master bedroom, which includes drawers and storage space for your things. A queen bed will provide a great night's rest, and you have the option to choose a king bed if you want more space to stretch out!

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 fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. 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, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!

Options:

M- CLASS LUXURY INTERIOR PACKAGE
EXTERIOR PACKAGE
GARAGE PACKAGE
WEATHER- TEK INSULATION PACKAGE
UNDER UNIT LED LIGHT KIT
2ND BEDROOM 15K A/C
3RD A/C PREP
KITCHEN PWR FAN W/RAIN SENSOR
GARAGE TV LED HD
AUX FRESH WATER TANK 40GALS
20cu.ft. FRIG (inverter prep solar panel 50 amp contrl
bluetooth mod
dock ports)
SAFERIDE RV ROADSIDE ASSISTANCE
RVIA SEAL
DPU
M CLASS GRAPHICS
ARTSAN INT DECOR
UPGRADED COOPER H-RATED TIRES W/17.5" WHEELS
MorRYDE 7K INDEPENDENT SUSPENSION TRIPLE AXLE
GEN III 3 SEASON DOOR W/ SLIDING WINDOWS
6K WATT GENERATOR
3RD GARAGE 15K A/C
HEAT PUMP
KING BED
ROCKFORD FOSGAGTE STAGE 1 STERO
1/2 BATH GARAGE
REAR ALUMINUM DECK W/PWR AWNING
REAR PATIO STEPS
SLIDE OUT TOPPERS
SOLAR ½ PACKAGE
WINTERIZATION
ONYX W/ ORANGE ACCENT FBP
OMNI CONNECT
CDL FEE

Relax.Explore.LIVE!

Features

Standard Features (2026)

Exterior

Keyed Alike™ Ramp Door Latches
2nd Patio Awning w/ LED Lights
3rd Awning w/ LED Lights
Exterior 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)
MORryde Strut Assist Entry Step
Slam-Latch Baggage Doors
Mo Secure
Gen III 3 Seasons Doors (Opt)

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
Heavy Duty 7,000 lb. Axles with ABS Brakes
17.5" H-Rated Aluminum Wheels
MORryde® Independent Suspension 2.0

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
Recliner Sofa w/Adjustable Headrest or Flip Down Cupholders
Central Vacuum System w/ Tools and Dust Pan
Plywood Drawer Bottoms

Kitchen

Microwave
Professional Grade Stainless Steel Cooktop
12-Volt High Power MaxxAir w/Rain Sensor
Window Behind Range
Kitchen Barstools w/ Extended Countertops
Smart Sink w/Removable Cutting Board, Produce Strainer and Glass Rinser

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
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
OmniConnect On-Board WiFi Ready

Packages

Exterior Package

Satellite TV Prep
MORryde Strut Assist Entry Step
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
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

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
On Demand 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

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
Tuff-Ply Gas and Oil Resistant Garage Flooring
FastRamp™ Rear Ramp Door
Triple Insulated Garage Floor

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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Making memories
This rig meets all our needs from space to amenities. We've had it out several times since picking it up late summer. We are extremely please with the unit and the experience with Beckley's, Kelly S. and Paul C.

Alan
Vibe is very friendly
I am very grateful to have found them. The sales person TJ was great, attentive, and kind. He helped me find the best buy for my needs. The other sales people around were also were very nice. Since it’s a family owned business, the vibe is very friendly. Bill, their finance manager, really hooked me ... More »

Cindy
Very spacious, comfortable and high quality.
Open living area, bathroom

James

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Beckleys RVs 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. All prices may not include Beckley’s Camping Center’s 145 point pre-delivery inspection. 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 833-930-0691 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 2026 Grand Design Momentum 392M

392M Floorplan

Specifications

Description

Features