New 2021 Grand Design Momentum M-Class 398M
ARRIVING SOON


- Dual Entry
- Loft
- Four-Seat Sofa
- Kitchen Island w/ Stools
- Dual Enclosed Fuel Station
Imagine your family of 12 taking turns riding your four wheelers around the dunes, or taking the jet skis on the lake. This Momentum M-Class 398M fifth wheel toy hauler offers an 18' garage for your toys and a side man door for easy access when the ramp door is closed. You can store additional outdoor gear in the exterior unobstructed pass-through storage near the main entrance. Now imagine your family watching the big game on the 49" LED TV with a fireplace below while sitting on the bar stools at the kitchen island or on the four-seat sofa. Now stop imagining and start living the dream in this M-Class!
With any Momentum M-Class toy hauler fifth wheel you will enjoy extraordinary living with extreme playtime with the Weather-Tek insulation for four seasons of protection, and a fully enclosed fuel pump station to keep the fun going the whole time. The Tuff-Ply garage flooring is gas and oil resistant, plus triple insulated. You will find 2,500 lb. rated flush-mount tie-downs to keep your toys secure while moving down the road. The interior includes a sofa with headrest and removable swivel table, a convection microwave, a central vacuum system with tools and a dust pan, and a satellite/solar roof access channel to mention a few highlights. Any Grand Design Momentum M-Class allows you to keep your active lifestyle no matter where you decide to stay!
Amazing experience! We popped in while on vacation and met the good people at Affinity in Prescott we were impressed with the service and when it was time to buy another trailer we knew where to go.
Great selection, great prices, and our walk through was so detailed.
I would highly recommend them!
Thank you Affinity!
Mike and Leticia McCall
September 17,2020
- Leticia from Groom Creek, AZ
Stock# 0030119
Exterior Color: Burnt Orange, Silver, Blue, Burgundy, White Pearl
Interior Color: Mocha, Oakley
Sleeps | 12 |
Slides | 3 |
Length | 44 ft 9 in |
Ext Height | 13 ft 5 in |
Interior Color | Mocha, Oakley |
Exterior Color | Burnt Orange, Silver, Blue, Burgundy, White Pearl |
Hitch Weight | 3000 lbs |
Gross Weight | 20000 lbs |
Dry Weight | 15100 lbs |
Fresh Water Capacity | 157 gals |
Grey Water Capacity | 104 gals |
Black Water Capacity | 52 gals |
Tire Size | 16" |
Furnace BTU | 40000 btu |
Fuel Capacity | 60 gals |
Number Of Bunks | 2 |
Available Beds | Queen |
Refrigerator Type | Four Door |
Refrigerator Size | 18 cu ft |
Convection Cooking | Yes |
Cooktop Burners | 3 |
Number of Awnings | 2 |
Axle Weight | 7000 lbs |
Garage Size | 18 ft |
LP Tank Capacity | 30 lbs |
Water Heater Capacity | 12 gal |
Water Heater Type | Gas/Electric |
AC BTU | 30000 btu |
TV Info | LR 49" LED |
Awning Info | 18' & 15' Power |
Axle Count | 3 |
Washer/Dryer Available | Yes |
Number of LP Tanks | 2 |
Shower Type | Shower w/Seat |
Electrical Service | 50 amp |
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