2026 Grand Design Momentum M-Class 414M

Vehicle Photo
  • MSRP: $179,838
  • Dealer Discount: $56,861
  • Finance Incentive: $4,000
  • Sale Price: $118,977
  • As Low As: $796 /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""

NEW 2026 Grand Design Momentum 414M Toy Hauler Fifth Wheel Highlights:

  • Queen Bed Slide Out

  • U-Shaped Kitchen Counter

  • Free-Standing Dinette

  • Kitchen Pantry

  • 14' Separate Garage

  • Flip-Up Pet Dish

  • Liftsuite System with Overhead Loft Bed

  • Fireplace

  • Dual Entry Bathroom

  • Washer/Dryer Prep

Built for riders, travelers, and families who refuse to compromise, the NEW 2026 Grand Design Momentum 414M delivers the perfect blend of rugged capability and residential-style comfort. Whether you’re chasing desert trails, mountain views, or extended stays at your favorite off-road destination, this Momentum is designed to elevate every mile of the journey.

The 14' separate garage is ready for your toys and your lifestyle, featuring a Liftsuite System, overhead loft bed, and durable flooring built to handle gear with ease. When the toys are unloaded, the garage transforms into additional living or sleeping space, making this unit ideal for groups or longer adventures. A flip-up pet dish ensures your four-legged companions are just as comfortable as you are.

Step into the main living area and enjoy a wide-open, inviting layout. The L-shaped sofa with recline sits perfectly across from the fireplace, creating a cozy place to unwind after a long day outdoors. A free-standing dinette provides space for meals, games, or planning the next adventure. The kitchen is designed for real cooking, featuring a U-shaped counter with generous prep space, upgraded appliances, and a dedicated pantry to keep supplies organized for extended trips.

The dual entry bathroom adds convenience for guests and riders alike, while the front master bedroom offers privacy and comfort. Here you’ll find a queen bed slide out with an optional king upgrade, a slide-top dresser with TV prep, a spacious front closet, and washer/dryer prep—perfect for longer stays or full-time travel.

Momentum fifth wheel toy haulers by Grand Design are engineered for four-season exploration and extreme living. Construction features include a fully enclosed and heated underbelly,

†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 $4,000 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.