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2021 Momentum 399TH Fifth Wheel for sale | RV Envy

Home
Fifth wheel trailers
Grand Design
Momentum

Grand Design Momentum 399TH

Toy hauler, side patio, bath and a half, bar seating

Front bedroom
Side patio
Bath and a half
Walk-thru bath
Loft
Bar seating
Toy hauler

MSRP

$113,368

Browse inventory (12)

Grand Design Momentum 399TH floor plan

Grand Design Momentum 399TH floor plan

Key facts

MSRP: $113,368
Length: 43 ft 1 in
Sleeps: 7

RV Envy's expert take

We like...

Side patio

Things to consider...

TV doesn't face couch
Tight quarters in bathrooms

Videos

Find a Grand Design Momentum 399TH

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Grand Design Momentum 399TH overview

Front bedroom
Side patio
Bath and a half
Walk-thru bath
Loft
Bar seating
Toy hauler

Key facts

MSRP: $113,368
Length: 43 ft 1 in
Sleeps: 7

Specs

Dimensions

Length: 43 ft 1 in
Height: 13 ft 5 in

Tanks & capacities

Fresh water: 155 gal
Gray water: 104 gal
Black water: 104 gal

Weight & towing

Dry weight: 15,900 lbs
Hitch weight: 3,400 lbs

Accommodations

Sleeps: 7

Available years

2024 2023 2022 2021

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