2017 Grand Design Momentum 399TH

OUR PRICE $68,495

@ReliableRV.com is proud to present this 2017 Grand Design Momentum 399TH! At 43-ft, this is the Luxury line of 5th Wheels! It has a 13-ft garage for toys, and a chefs kitchen for plenty of guests and entertainment. This fith-wheel has an excellent floorplan that sleeps 7 and has 2 bathroom(s) located in the center and the rear of the coach. This trailer has a great place to enjoy entertainment with Luxury full-wall couch with a TV. This is great for couples but is equally suited for families with 1 bunk, 1 queen, 1 king and 1 convertible sofa bed. As with all Momentum 399TH trailers, the kitchen has everything you might need such as a kitchen island, deep sink, full-size refrigerator, microwave, and a 2 oven burner stove! You can really enjoy a good night's rest and transform your traveling experience with this Momentum 399TH.

Premium functional components included in this 2017 Grand Design Momentum 399TH is 3 power slideouts and two awning(s), and has both front and rear power leveling jacks with an awesome toy garage with racks, tie down spots, etc. This aluminum body and fiberglass sidewall trailer is strongly built and has a 20,000-lbs GVWR. It has 3 Axles and is equipped with pre-wiring for cable and satellite.

This 2017 Grand Design Momentum 399TH is equipped with the following highlights:
43.33 FT Length
117 GAL Fresh Water Tank
104 GAL Gray Water Tank
104 GAL Black Water Tank
28,500 BTUs Air Conditioning
35,000 BTUs Heater
Electric / Propane Water Heater
Rear Hitch Receiver with 3,400-lbs towing capacity


About these values
BrandGrand Design
TypeFifth Wheel
Stock IDRP23554B
StatusIn Stock
UVW15,900 lbs
Dry Hitch3,400 lbs
GVWR20,000 lbs
Length (ft,in)43' 4"
Width (ft,in)8'
Height (ft,in)13' 5"
Fresh Tank117 gal
Gray Tank104 gal
Black Tank104 gal
Awning14 '
2nd Awning16 '
Toy HaulerYES
Garage Length13'
Fuel Station60 gal


Drop Frame Chassis
Aluminum Framed
High-Gloss Fiberglass
Folding Roof Ladder
7000# Axles
Aluminum Rims
Power Awning
50-Amp Service Cord
Generator Prep
35k Furnace
15k A/C 
LED Lighting
Central Vacuum
Sofa w/Heat/Massage
Night Shades
Entertainment System
Solid Surface Counters
Stainless Steel Sink
Undermount Sink
Underbed Storage
Shower Skylight
Garage Ram Vents
Diamond Plate

Notice:  Terms and payment amounts are not an offer or extension of credit. Actual terms and payments will vary based on an applicants credit history and financial resources.

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$441 /mo*
2017 Grand Design Momentum 399TH Fifth Wheel at Reliable RV STOCK# RP23554B Floor plan Layout Photo
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Purchase prices do not include tax, title, license and $499 admin fee. Please verify all information. We are not responsible for typographical, technical, or misprint errors. Inventory is subject to prior sale. Contact us via phone or email for more details.

Manufacturer-provided pictures, specifications and features may be used as needed and may differ from the model as shown here. Reliable RV is not responsible for any misprints, typos, or errors found in our website pages. Please contact us for exact specifications and up to date pricing!