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
Standard Features & Equipment
12V High Power Fan (Kitchen)
35K BTU High Capacity Furnace
Under Bed Storage Area
Individually Switched Reading Lights Over Bed
30" OTR Microwave, Professional Grade 4-Burner Cooktop w/24" Oven, 12-Volt High Power MaxxAir Fan w/Rain Sensor, Smart Sink w/ removeable cutting board, produce strainer and glass rinser,
Skylight Above Shower, Porcelain Toilet, Medicine Cabinet w/Mirrored Door, 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, 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 LED Accent Lighting, Hardwood Cabinet Doors w/Soft Close Hidden Hinges, Recliner Sofa w/Adjustable Headrest or Flip Down Cupholders, Central Vacuum System w/ Tools and Dust Pan, Undermount soft-close drawer glides, Hardwood drawer boxes,
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, Brass Plumbing Fittings w/ Shut Offs,
Fireplace with Electric Heater, Matte Black 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,
New Worry-Free Composite Roof w/ Lifetime Warranty, 101" Wide Body Construction, 5-Side Aluminum Cage Construction, Fully Enclosed and Heated, Underbelly and Storage Area, Roof Insulation R-Value: 40, Wall Insulation R-Value: 11, Floor Insulation R-Value: 45, Slide-Out Insulation R-Value: 11,
6-Point Hydraulic Leveling System, MORryde® Pin Box, 101" Wide Body Super Chassis w/Drop-Frame Storage,
* 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
Chassis & Towing
19,000 lbs GVWR
Robust capacity allows for towing additional gear and toys.
Plumbing
140-Gallon Fresh Water Capacity
Ample fresh water storage for extended adventures.
Ready for Your Next Adventure?
Experience the freedom of the open road with your next RV adventure
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Estimated • 20% down
Schedule Tour
See this RV in person at our showroom
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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Trade Evaluation
Dealer assessment
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.
$0
USEDFifth Wheel Toy HaulerFife, WAStock #LP14B
2025 Grand Design Momentum 351MS
Length
39.92ft Length39.92ft39.92ft
Sleeps
Sleeps 666
Dry Weight
15,760lbs Dry Weight15,760lbs15,760lbs
$XX,XXX
Dealer Administrative Fee $950
Total Fees (not included in price)$950
*Dealer administrative fee includes freight, doc fee, dealer prep, orientation and other administrative fees.
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2025 Grand Design Momentum:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Fife RV Center before making purchasing decisions.
USEDFifth Wheel Toy HaulerFife, WAStock #LP14B
2025 Grand Design Momentum 351MS
Length
39.92ft Length39.92ft39.92ft
Sleeps
Sleeps 666
Dry Weight
15,760lbs Dry Weight15,760lbs15,760lbs
$XX,XXX
Dealer Administrative Fee $950
Total Fees (not included in price)$950
*Dealer administrative fee includes freight, doc fee, dealer prep, orientation and other administrative fees.
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2025 Grand Design Momentum:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Fife RV Center before making purchasing decisions.
USEDFifth Wheel Toy HaulerFife, WAStock #LP14B
2025 Grand Design Momentum 351MS
Length
39.92ft Length39.92ft39.92ft
Sleeps
Sleeps 666
Dry Weight
15,760lbs Dry Weight15,760lbs15,760lbs
$XX,XXX
Dealer Administrative Fee $950
Total Fees (not included in price)$950
*Dealer administrative fee includes freight, doc fee, dealer prep, orientation and other administrative fees.
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2025 Grand Design Momentum:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Fife RV Center before making purchasing decisions.
