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2019 Grand Design Momentum M Class 398M


* This offer expires when this stock number is sold.



New 2019 Grand Design Momentum 398M Luxury Fifth Wheel Toy Hauler.

This unit has everything you could possibly need while travelling and sleeps up to 8 people. At the front of the unit you find the master bedroom with a king size bed, pillow top mattress, drawers, wardrobe, under bed storage, television, reading lights, and bedside outlets for the perfect room to relax and unwind in after a long day of adventures and fun. Just off the bedroom is the bathroom with a shower, seat, and skylight, medicine cabinet, porcelain toilet, and sink.

As you walk toward the back to the next room you are taken to the kitchen where you find a large 18 cu. ft refrigerator, sink, 30" microwave, pantry, sink, and an island with bar seating. In this space you will also find a 4-seat sofa with heating and massage capabilities and a stow away table to double as a dinette and an entertainment center with television and fireplace. This is a great space to gather the family before and after your day of fun.

At the back of the unit is the multi-functional garage. Once your toy is dismounted you can bring down happi-jac sofas for extra seating space and a second living area. The sofas convert into beds at night and there is an electric bed above so this room may serve as a second bedroom at night.

Finally, at the back, the ramp door serves as a patio when parked for a great outdoor space in addition to the 2 awnings on this model.


60 Gallon Fuel Station
5.5kw Onan Generator
Dealer Pick Up
Exterior Package
Garage Package
Luxury Interior Package
Weather-tek Package



4 x rollover sofas
Electric top bed
Second Entrance
TV Prep
Rear Aluminum Patio System
3 Season Garage Wall


30" Stainless Steel Microwave
18 Cu. Ft. Refrigerator
Sink with Residential Faucet
Island with Bar Stools


King Bed
Under Bed Storage
Pillow Top Mattress
Storage Drawers
Overhead Cabinets
Individual Reading Lights
Bedside Outlets


Shower with seat
Porcelain Toilet
Medicine Cabinet with Mirrored Door
Power Fan with Rain Sensor


Sofa with Heat and Massage
Removable Swivel Tables
Central Vacuum System with Tools and Dust Pan
Entertainment Center


18' Power Awning
15' Power Awning
Exterior LED Lighting
Exterior Spray Port
Exterior Entertainment System


Stock Number:29351
Class:Fifth Wheel Toy Hauler
Length:44' 9"
Secure Deposit On This Unit
Deposit Amount: $1,000.00
Please contact us to estimate freight and delivery and give you a general idea of costs. Our freight and delivery costs and/or per mile costs can change without notice. Final freight and delivery costs will be calculated with your deal. Freight is calculated based on cost from manufacturer to us.

Internet price includes factory and dealer incentives and rebates, and applies to conventional financing only. OAC, some customers may not qualify for rebates or financing. Internet pricing is only available for prime lender financing obtained through Arizona State Trailer Sales, Inc. (ASTS). Financing not obtained through ASTS, non-prime, cash transactions and some RV's will not receive the dealer rebate. While every reasonable effort is made to ensure the accuracy of data, we are not responsible for any errors or omissions contained on these pages. Price does not include taxes, freight and fees.


UVW: 15100 lbs Hitch Weight: 3000 lbs GVWR: 20000 lbs Height: 13' 5" Axle Rating: 3 x 7000 LP Capacity: 60 lbs Fresh Water Capacity: 157 gallons Grey Water Capacity: 104 gallons Waste Water Capacity: 52 gallons Water Heater: 12 gallons


Mesa Little Dealer 480-321-8365
2038 N Country Club Dr
Mesa, AZ 85201

Contact Information:

  • Toll Free: 888-834-9581
  • Local: 480-321-8365
  • Main Phone: 480-321-8365
  • Service: 480-655-9592
  • Parts: 480-655-9592
  • Fax: 480-962-0914


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  1. Family owned and operated since 1966, over 50 years in the Valley of the Sun. About Us
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Arizona State Trailer Sales, Inc. dba Little Dealer Little Prices RV (LDLP) is a full service RV Dealer with facilities in Mesa, Phoenix and Prescott Valley, Arizona. LDLP makes every effort to provide accurate and complete information, however errors still happen. LDLP provides NO assurance or warranty, expressed or implied, as to the accuracy, fitness for use, reliability or completeness of the data contained herein. It is up to the buyer to verify all information before purchasing. All unit prices listed may be subject to government fees and taxes, finance charges, added options,documentation fee, preparation charge, shipping or other added cost. Unauthorized attempts to upload or change information on this website are strictly prohibited and may be punishable under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act. Information may also be used for authorized law enforcement investigations. This site uses a tool which collects your requests for pages and passes elements of them to search engines to assist them in indexing this site. We control the configuration of the tool and are responsible for any information sent to the search engines.