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2026 Grand Design Momentum 399M

Buda, TX (1082 mi away)

$131,995
Great Deal

Key Specs

Condition

New

Year

2026

Interior Color

ARTISAN

Description

This new 2026 Grand Design Momentum 399M fifth wheel toy hauler blends luxury living with serious hauling capability. Built for four-season adventures with the Weather-Tek insulation package, it adds a side patio and a versatile garage to maximize outdoor fun.

  • 12' 6" separate garage with 3-season doors; rear aluminum deck and power awning
  • Side patio with 65" TV, exterior griddle, and 1.7 cu. ft. fridge
  • Island kitchen with pantry, pull-out extension, and 20 cu. ft. 12V refrigerator
  • L-shaped recliners facing 50" TV and fireplace; hybrid desk/dinette
  • King bed slide, large closet with washer/dryer prep; full bath
  • Solar+ package (additional 330W panel, 2000W inverter); 6kW generator; OmniConnect WiFi prep
  • MORryde 7K independent suspension 2.0 with disc brakes; H-rated 17.5" tires (triple axle)
  • Key specs: 44'10" length; 3 slides; sleeps 4; 140/104/52 gal tanks; 50 amp; on-demand water heater; three power awnings

Available at Crestview RV in Buda, TX, this Momentum 399M delivers the comfort, tech, and capability to elevate every trip.

Overview

MakeGrand Design
ModelMomentum
Year2026
ConditionNew
Interior ColorARTISAN
GVW23,500 lbs
Sleeps4
Slideouts3 slideouts
Air Conditioners3
AwningsYes
Leveling JacksYes
Water Capacity140 gal
Bunkhouse FloorplanYes
VIN573FM473XTBB04652
Stock #32427

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