2026 Grand Design Momentum M-Class 414M

Vehicle Photo
  • MSRP: $179,838†
  • Sale Price: $100,505
  • Freight: $1,995
  • Doc: $499
  • Finance Incentive: -$3,000
  • All-In Price: $99,999
  • No-Finance Incentive Price: $102,999 Includes freight & doc fees with no finance discount
  • As Low As: $669 /mo (Edit)
Stock #: 21172127
Tucson, AZ
  • Available
  • New
  • Class: Fifth Wheel
  • Length: 46 ft 4in
  • Slides: 3
  • Dry Weight: 16,800
  • Sleeps: 5

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  • Bath and a Half
  • Front Bedroom
  • Loft
  • Toy Hauler
  • Two Entry/Exit Doors
Floorplan
  • Available Beds Queen
  • Exterior Height 13 ft 6in
  • Exterior Width 8 ft 5in
  • Interior Height 8 ft 5in
  • Garage Size 14 ft
  • Pin Weight 3,690 lbs
  • Gross Weight 22,500 lbs
  • Dry Weight 16,800 lbs
  • Fuel Capacity 60 gal
  • Tire Size ST215/75R17.5 LRH
  • Axle Count 2
  • Fresh Water Capacity 140 gal
  • Grey Water Capacity 78 gal
  • Black Water Capacity 78 gal
  • Furnace BTU 35,000
  • Refrigerator Type Stainless Steel
  • Refrigerator Size 20
  • Cooktop Burners 3
  • Shower Type Shower w/Seat
  • Number of Awnings 3
  • Electrical Service 50 amps
  • Washer/Dryer Available Yes
  • TV Info LED TV; LR 49"", Garage 32""

Grand Design Momentum M-Class fifth wheel toy hauler 414M highlights:

  • 14' Garage with Ramp Door Patio
  • LiftSuite with Overhead Bed
  • Rear Garage with Adjustable Tie-Down System
  • Spacious Residential-Style Living Area
  • 20 Cu. Ft. 12V Refrigerator
  • King Bed Optional

Bring your toys, your family, and your sense of adventure with the new 2026 Grand Design Momentum M-Class 414M! This impressive fifth-wheel toy hauler is designed for RVers who refuse to leave the fun behind, featuring a massive 14-foot garage with an adjustable tie-down system and ramp door that can transform into an incredible outdoor patio. The garage also features the innovative LiftSuite system with an overhead bed and seating, giving you flexible space for motorcycles, ATVs, gear, guests, or simply creating another place to relax. www.granddesignrv.com

Inside, the 414M feels every bit as luxurious as it is capable. The spacious living area features theater seating, a super sofa, free-standing dinette, entertainment features, and large windows, creating a comfortable place to unwind after a full day of adventure. The kitchen is ready for serious meals with a 20 cu. ft. 12V refrigerator, microwave, generous counter space, and plenty of storage. Up front, the private bedroom features a 60"" x 80"" queen bed with a king-bed option, a slide-top dresser, TV prep, and plenty of storage. Washer/dryer prep adds even more convenience for extended trips. www.granddesignrv.com

The 2026 Grand Design Momentum 414M is built for serious adventure with a 101"" wide-body SuperChassis, MORryde independent suspension, 17.5"" H-rated tires, ABS, heated and enclosed underbelly, triple-insulated garage floor, and 330W standard roof-mounted solar panel. A 20-gallon 12V refrigerator, 50-amp solar charge controller, and inverter prep give you even more flexibility when camping away from hookups. Add the Rockford Fosgate premium audio system, OmniConnect connectivity, 14' awning, and massive storage, and you have a toy hauler that can handle both your biggest adventures and your most relaxing weekends. 

 

Why Buy from Campers Inn RV Tucson? Campers Inn RV Tucson combines nationwide buying power with local expertise, transparent pricing, and a dedicated service team that understands the demands of toy hauler owners in the Southwest. From your first visit to long after the sale, you’ll experience support built around your adventures.

Inventory/Stock Images may be shown. Colors and specifications may vary. Call our AMAZING TEAM for details.

†Airstream of Tucson strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Airstream of Tucson is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Airstream of Tucson for complete details.

*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Airstream of Tucson is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.

**Airstream of Tucson believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Airstream of Tucson cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.

***The advertised discount contains a $3,000 finance incentive. Finance Incentive applies if financing for your RV purchase is obtained with assistance by Airstream of Tucson and placed with a third party lender. Terms and Conditions may apply. Contact our finance department for further details.