Chassis & Towing
19,000 lbs GVWR
Robust capacity allows for towing additional gear and toys.
2025 Grand Design Momentum 351MS
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Layout & Media
Explore the floorplan, 3D tour
Complete Fifth Wheel Specifications
2025 Grand Design Momentum Overview
Experience the adventure with the 2025 Grand Design Momentum 351MS, a spacious fifth wheel that sleeps 6 and boasts a remarkable dry weight of 15,760 lbs. This 40 ft toy hauler features a kitchen island and three slides, providing plenty of room for family and friends. With dual air conditioners and a powerful furnace, you’ll stay comfortable no matter the season. Ideal for outdoor enthusiasts, the Momentum is perfect for transporting your gear and enjoying nature without sacrificing luxury. Don't miss out on this exceptional fifth wheel! Schedule your tour today!
Premium Features & Highlights
Dual Air Conditioners for Optimal Comfort
Spacious Interior Layout with Kitchen Island
Three Slides for Extra Room
Bunkhouse Design for Additional Sleeping Space
104-Gallon Black Water Capacity for Extended Trips
Select a category to view specs
Overview
Vehicle Identification & Details
9 specifications available
- Category
- Fifth Wheel
- Condition
- used
- Floorplan
- 351MS
- Make
- Grand Design
- Model
- Momentum
- Stock Number
- LP14B
- Subcategory
- toy-hauler
- VIN
- 573FM4124SBB04080
- Year
- 2025
Size & Weight
Dimensions, Weight, Construction & Exterior
13 specifications available
- Cargo Area Length Ft
- 11
- Dry Weight
- 15,760 lbs
- GVWR
- 19,000 lbs
- Length
- 39.92 ft
- Exterior Height
- 13.5 ft
- Interior Height
- 8.42 ft
- Width
- 8.42 ft
- Awning Length Ft
- 10 ft
- Awnings Count
- 2
- Construction Type
- Aluminum Cage
- Slides
- 3
- Two Entry
- Yes
Sleeping & Layout
Beds, Layout, Living & Comfort
11 specifications available
- Bedroom Count
- 1
- Bunk Beds Count
- 0
- Bunkhouse
- Yes
- Full Beds Count
- 0
- King Beds Count
- 0
- Loft Beds Count
- 0
- Primary Bedroom Location
- Front
- Murphy Beds Count
- 0
- Queen Beds Count
- 1
- Sleeps
- 6
- U Shaped Dinette
- false
Kitchen & Dining
Cooking, Dining & Appliances
3 specifications available
- Kitchen Island
- Yes
- Refrigerator Size
- 20
- Washer Dryer Prep
- Yes
Bathroom & Facilities
Comfort & Privacy
2 specifications available
- Bathrooms Count
- 1
- Shower Type
- Standard
Water Systems
Tanks & Plumbing
4 specifications available
- Black Water Capacity
- 104 gal
- Fresh Water Capacity
- 140 gal
- Gray Water Capacity
- 52
- Water Heater Type
- On-Demand
Power & Electrical
Electrical, Entertainment & Safety
1 specifications available
- Washer Dryer Prewiring
- Yes
Climate Control
Heating & Cooling
4 specifications available
- Ac Btu
- 30,000 BTU
- Air Conditioners Count
- 2
- Air Conditioning
- Dual 15k BTU
- Heater Btu
- 35,000 BTU
Manufacturer Features & Equipment
12V High Power Fan (Kitchen)
35K BTU High Capacity Furnace
Under Bed Storage Area
Individually Switched Reading Lights Over Bed
Microwave, Professional Grade Stainless Steel Cooktop, 12-Volt High Power MaxxAir Fan w/Rain Sensor, Window Behind Range, Kitchen Barstools w/ Extended Countertops, Smart Sink w/ removeable cutting board, produce strainer and glass rinser,
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,
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),
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,
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,
Fireplace with Electric Heater, Stainless Steel 20 cu. ft. Refrigerator, 30" Over-The-Range Microwave,
Width, Slides Out (ft): 14.25,
Solar Prep (10 gauge wiring with universal MC4 connectors), 75 Amp Converter, 12V Battery Disconnect,
OneControl™ System, Back-Up Camera Prep, Exterior Cable/SAT Plug-In, LED Smart TV in Living Area, 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,
101" Wide Body Construction, 5-Side Aluminum Cage Construction, Fully Enclosed and Heated, Underbelly and Storage Area,
Upgraded Axle Hangers, Heavy Duty H-Rated Tires, Heavy Duty 7,000 lb. Axles with ABS Drum Brakes, 17.5" H-Rated Aluminum Wheels, MORryde® Independent Suspension 2.0,
6-Point Hydraulic Leveling System, MORryde® Pin Box, 101" Wide Body Super Chassis w/Drop-Frame Storage,
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,
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,
R-Value Equivalent (R-40 Roof / R-45 Floor / R-11 Sidewalls / R-40 Garage Floor / R-24 Slideroom 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,
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,
Features and equipment are provided by the manufacturer for this model line and may include optional equipment or items that vary by floorplan and trim. Please confirm with Fife RV Center which options are included on this unit.
* Vehicle specifications listed to the best of our knowledge. All specifications, features, and information are provided by the manufacturer. Fife RV Center is not responsible for manufacturer defects, specification changes, or recalls. Buyers should verify all information directly with Fife RV Center.
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SOLD AS-IS
This unit is sold "as-is" by Fife RV Center with no warranties express or implied. The buyer is responsible for inspection and accepts the unit in its current condition. Fife RV Center makes no representations about condition, mechanical status, or fitness for any particular purpose. See Fife RV Center for complete details.
ScoutRV Platform is a technology provider only and makes no representations about unit condition or sales. All sales and warranties are between buyer and Fife RV Center.
Built to Last
Superior construction for years of adventures
Plumbing
140-Gallon Fresh Water Capacity
Ample fresh water storage for extended adventures.
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Showroom Hours
Mon-Sat: 8:30 AM - 6 PM, Sun: 10 AM - 5 PM
3410 Pacific Hwy E Fife, WA 98424
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Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. We are 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 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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