2026 Grand Design Momentum M-Class 399M

New Fifth Wheel in Grain Valley, Missouri, 64029

$164,495.00
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New 2026 Grand Design Momentum M-Class 399M available in Grain Valley, Missouri
2026 Grand Design Momentum M-Class 399M - New Fifth Wheel For Sale by Blue Compass RV Kansas City in Grain Valley, Missouri
2026 Momentum M-Class 399M by Grand Design from Blue Compass RV Kansas City in Grain Valley, Missouri
New 2026 Grand Design Momentum M-Class 399M available in Grain Valley, Missouri

Unit Specs

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Your camping memories will be unforgettable in this 2026 Grand Design Momentum M-Class 399M. Be a part of the Grand Design family with this 2026 Grand Design Momentum M-Class 399M. If you’re looking for a family RV, you’ve found it: this rig sleeps 9.

2026 Grand Design Momentum M-Class 399M Features


2026 Grand Design Momentum M-Class 399M Specifications

General

MSRP

$174,278

Dimensions

Height

13' 6"

Height (interior)

8' 5"

Length

44' 10"

Width

8' 5"

Weights

Dry Weight

18,000 lbs

GVWR

22,500 lbs

Hitch Weight

3,464 lbs

Payload Capacity

4,500 lbs

Capacities

Refrigerator Capacity

20 cu ft

Sleep Capacity

6

Water Capacity - Black

52 gal

Water Capacity - Fresh

140 gal

Water Capacity - Grey

104 gal

Exterior

# Awnings

3

# Axles

3

# Doors

3

# Slides

3

Chassis

101" Wide Body Super Chassis w/Drop-Frame Storage

Hitch

Fifth Wheel

Rear Opening

Ramp

Electrical

# A/C

1

A/C Spec

30,000 BTU

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Grand Design Momentum M-Class 399M Literature


Seller Info

Blue Compass RV Kansas City

1100 NW Pamela Blvd
Grain Valley, MO 64029

Member Since 2024

See 533 Reviews

Unit Specs

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Request More Info on this 2026 Grand Design Momentum M-Class 399M Offered for sale by Blue Compass RV Kansas City
Blue Compass RV Kansas City
Blue Compass RV Kansas City

1100 NW Pamela Blvd
Grain Valley, MO 64029

Phone: Click to Call

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New 2026 Grand Design Momentum M-Class 399M available in Grain Valley, Missouri
2026 Grand Design Momentum M-Class 399M - New Fifth Wheel For Sale by Blue Compass RV Kansas City in Grain Valley, Missouri
2026 Momentum M-Class 399M by Grand Design from Blue Compass RV Kansas City in Grain Valley, Missouri
New 2026 Grand Design Momentum M-Class 399M available in Grain Valley, Missouri