New 2026 Grand Design Momentum 414M Toy Hauler Fifth Wheel

Toy Hauler; Loft; Fireplace
Virtual Tour 14ft Garage Theatre Seating
2026 414M Features and Options

The 2026 Grand Design Momentum 414M is a flagship luxury toy hauler fifth wheel built for maximum space, residential comfort, and serious hauling capability, making it one of the largest and most feature-packed models in the Momentum lineup. At approximately 46’4” in length with a dry weight around 18,500 lbs and a GVWR of 23,500 lbs, it’s designed for full-time RVers, large families, or outdoor enthusiasts who want a true combination of garage utility and high-end living space.

Inside, the 414M is centered around a 14-foot separate garage, giving you dedicated space for ATVs, motorcycles, golf carts, or additional storage. This garage isn’t just for hauling—it converts into a secondary living area with drop-down beds, seating, loft space, and even a half bath, making it ideal for guests or multi-family travel.

The main living area offers a wide-open residential layout with triple slide-outs, creating a large central gathering space. Theater seating or reclining sofas face an entertainment center with a fireplace, while large windows bring in natural light and make the space feel even more expansive when set up at camp.

The kitchen is one of the standout features of the 414M, designed for full-time usability with a U-shaped or extended countertop layout, bar seating, pantry storage, and a 20 cu. ft. residential refrigerator. Combined with a 3-burner cooktop, oven, and microwave, it provides everything needed for long trips without sacrificing cooking space or storage.

Up front, the private master suite includes a queen bed slide (king optional), large wardrobe storage, and washer/dryer prep, giving it a true residential bedroom feel. The main bathroom features a large walk-in shower with seating, vanity, and porcelain toilet, while the garage half bath adds extra convenience—especially for families or guests.

Built on Grand Design’s premium Momentum platform, the 414M includes 101” wide-body construction, triple axles with independent suspension, a fully enclosed and heated underbelly, and high R-value insulation (R-45 floor, R-40 roof), making it suitable for extended-season and even cold-weather camping. Exterior features typically include three power awnings, a 6-point hydraulic leveling system, fuel station, and large pass-through storage, ensuring both comfort and capability on the road.


Reasons to Buy the 2026 Momentum 414M

  • Massive 14’ separate garage with convertible living space
  • Bath-and-a-half layout for added convenience
  • One of the largest Momentum models (~46’4”)
  • Spacious residential living area with triple slides
  • High-end kitchen with 20 cu. ft. refrigerator and large prep space
  • Sleeps up to 6–7 people comfortably
  • Loft + garage sleeping adds flexibility
  • Triple-axle independent suspension for smoother towing
  • Heated and enclosed underbelly for extended-season camping
  • Ideal for full-time RV living, large families, or toy hauler enthusiasts

Why Buy from Lazydays RV Powered by Campers Inn RV

 

  • Large inventory of Grand Design Momentum luxury toy haulers
  • Competitive financing options for qualified buyers
  • Factory-trained RV technicians and nationwide service network
  • Trade-in assistance for easy upgrades
  • Full walkthrough and delivery orientation included
  • Trusted national dealership group with long-term support 

 

What Our Customers Are Saying

Amazing!

I want to say thank you for everything that you did. You went way beyond my expectations. Everyone was so helpful. You are all amazing! - Karen
Price: $180,356
You Save: $50,359
Sale Price: $129,997
Campers Inn
Location: Tampa, FL
Stock# 21175555
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RV ID: 3380083#
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2026 414M Specifications
Sleeps 6
Slides 3
Length 46 ft 4 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Hitch Weight 3800 lbs
GVWR 23500 lbs
Dry Weight 18500 lbs
Fresh Water Capacity 140 gals
Grey Water Capacity 78 gals
Black Water Capacity 78 gals
Tire Size ST215/75R17.5 LRH
Furnace BTU 35000 btu
Fuel Capacity 60 gals
Number Of Bunks 1
Available Beds Queen
Refrigerator Type Stainless Steel
Refrigerator Size 20 cu ft
Cooktop Burners 3
Number of Awnings 3
Axle Weight 7000 lbs
Garage Size 14 ft
LP Tank Capacity 30 lbs
Water Heater Type On Demand
AC BTU 30000 btu
TV Info LED TV; LR 49", Garage 32"
Awning Info 11', 14', and 14' Power with LED Lights
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp
VIN 573FM483XTBB04391
For more information Contact Us

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