Momentum MAV Fifth Wheels
Floorplans
  • 270MAV floorplan

    270MAV
    Hitch: 2,500
    UVW: 10,800
    Length: 32' 8"

  • 340MAV floorplan

    340MAV
    Hitch: 2,700
    UVW: 12,500
    Length: 39' 9"

  • 390MAV floorplan

    390MAV
    Hitch: 2,950
    UVW: 13,500
    Length: 44' 8"

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Built to Haul. Trimmed to Tow.

Momentum MAV Fifth Wheels exterior

Less Spend. More Send.

Turns out, a great tow and a great weekend don't require every bell, whistle, and shiny thing imaginable. We removed the bloat, kept the quality, and put the focus back on what actually matters: big tanks, serious garage space, smart storage, a spacious, kitchen, comfortable sleeping, and the capability to haul your toys without hauling around a bunch of stuff you never asked for.

390MAV-B2F2.jpg

Worry-Free Roof

Worry-Free Roof

Worry-Free Roof

When the sky throws its worst, our impact-resistant, worry-free roof doesn’t flinch. Engineered for minimal maintenance and built to take a beating—so your adventures never skip a beat. Now standard on Momentum Fifth Wheels, Momentum G-Class Travel Trailers, Foundation, Solitude and Influence.

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Solar Package

MORE TIME. MORE PLACES.

SOLAR POWER NOW COMES STANDARD

Camp longer and in more places with the factory-installed 330W Solar Panel, 50 Amp Charge Controller with Inverter Prep, and 12V Refrigerator standard on all Momentum MAV Fifth Wheel's. No camping spot is off-limits. Just add batteries and go. Camp where you want, when you want*.

INCLUDED IN THE STANDARD SOLAR PACKAGE FOR MOMENTUM MAV FIFTH WHEELS:

*We may have gotten a little excited, please camp safely. Follow all laws and abide by no trespassing signs, you know what we mean.

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Dexter Tow Assist w/ABS

Dexter Tow Assist

Dexter Tow Assist brings added confidence and control to every journey with advanced braking technology designed to improve stability and reduce trailer sway. By automatically responding to changing road conditions, it helps deliver a smoother, safer, and more controlled towing experience.

  • Dexter-ABS-Logo
    Anti-Lock Braking
    Electric brakes keep you safe no matter how the road turns
  • Dexter-Sway-Logo
    Sway Mitigation
    Reduce the liklihood of trailer or tow vehicle losing control
  • Dexter-Odometer-Logo
    Towable Odometer
    Make informed decisions to maintain your trailer

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MORryde® CRE3000 Suspension

CRE3000 Suspension System

MORryde Logo CRE3000 Suspension System Logo

When it comes to suspension performance, it’s all about suspension travel. Increased travel means smoother towing, improved towability and better protection from damaging road shock.

101” Wide Body SuperChassis

Grand Design Exclusive Super Chassis Design

Exclusive Grand Design Super Chassis Design

101" Wide Body Chassis

A full 5” wider than many coaches in its class, the widebody chassis allows for more livable floor space with deeper sliderooms, wider sofas in rear lounge models, and space saving sliding pocket doors into the bathrooms…all at a shorter towing length.

Wide Rail Design

Heavy duty I-beam main rails are placed further outward on the chassis. This wider rail placement provides a more stable jack stance, and allows for the slideroom gearpacks to be enclosed inside the frame rails (rather than outside).

No Wheel Wells

A true toy hauler with no wheel wells to maximize cargo option. Not to mention more floor space for camping.

Dovetail Entry

Dovetails ensure you have a longer ramp and softer angle for loading your toys.

Brass Plumbing Fittings

Brass Plumbing

Brass Plumbing Fittings

Ensure long-lasting performance with corrosion-resistand brass fittings that maintain strong, secure plumbing connections.

Constructed to a Superior Standard

Double Insulated Roof (R-40)*

Thermal Roof Design

Double Insulated Roof (R-40)*

A layer of fiberglass insulation and a layer of radiant foil insulation covers the full length of the roof.

Residential Insulated Walls (R-9)

Fully Laminated Walls

Residential Insulated Walls (R-9)

Exterior walls and sliderooms are framed with studs set 16” on center, and residential fiberglass insulation is adhered in place between each stud.

Double Insulated Main Floor (R-25)*

Triple Insulated Main Floor

Double Insulated Main Floor (R-25)*

The underbelly is lined with a radiant foil insulation barrier (Layer 1). The main floor enhances the R-Value with yet another layer of fiberglass insulation (Layer 2).

Vented Attic

Vented Attic

Vented Attic

To maximize the effectiveness of the roof insulation, a vented attic allows condensation to escape the roof structure.

Product Line Specifications

270MAV
340MAV
390MAV
UVW
10,800 lbs.
12,500 lbs.
13,500 lbs.
Hitch
2,500 lbs.
2,700 lbs.
2,950 lbs.
GVWR
16,700 lbs.
16,700 lbs.
20,000 lbs.
Length
32' 8"
39' 9"
44' 8"
Height
13' 6"
13' 6"
13' 6"
Fresh Water
140 gal.
140 gal.
140 gal.
Gray Water
104 gal.
104 gal.
104 gal.
Waste Water
52 gal.
52 gal.
52 gal.
Garage Length
16'
13'
15'
Sleep Capacity
4
4
5
Bathroom Access*
N/A
N/A
N/A
MSRP
Coming Soon
Coming Soon
Coming Soon
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VIEW
VIEW

*Bathroom Access with slides in

Here is what customers have to say...

★★★★

I enjoy the simplicity and the build of the unit. You can tell a lot of thought was placed in setting up the design. It has the filling of a small apartment on wheel. Following and handling is superb I enjoy the comfort that it offers with residential appeal and large storage places.

JERRY J, Ten

★★★★★

This is our second Grand Design. First one being a Solitude and this one a Momentum. This is our 5th one that we have owned. All of them have been fifth wheels. 3 of them have been toy-haulers. We are really enjoying the design of the 395ms-r. For us the floor plan feels warm and inviting. Comfortable living while out on the road is an understatement. The quality of our GD far exceeds that of the other RVs we looked at purchasing this time. The systems are well thought out and good design. Ken

KENNETH S, TX

★★★★★

We recently purchased a Grand Design Momentum 376THS from McClain's RV in Fort Worth. Our expectations were exceeded by McClain's RV and Grand Design. We searched for two years and settled on the 376THS design because it met our desired requirements. Our unit was delivered two plus months earlier than expected. We started with a 5-week shake out trip and learned how much we enjoy the 376THS. Thank you to McClain's RV in Forth Worth and Grand Design for creating the 376THS.

STEPHEN M, CO

★★★★★

This is now our second GD trailer. We were looking for a Toy Hauler and after watching far too many YouTube reviews, finally visited our local dealer who thankfully has an excellent full lot of various makes. We made a very conscientious decision to start at the lower end of what we were looking for and move up in various brands, costs and sizes before visiting the Momentum we knew we would like. As we thought, walking into the GD trailer after seeing the others was night and day!

DENISE F, ON