Skip to main content Skip to navigation

Class A motorhomes
Class C motorhomes
Class B vans
Fifth wheel trailers
Travel trailers
Pop-up campers
Advanced search
Floor plan wizard
Inventory

Browse popular layouts & features

Class A motorhomes

… with bunk beds
… with two bedrooms
… with bath and a half
… with two full bathrooms
… with bunk over cab
… with rear bathroom

Browse all features →

Class B vans

… with King size bed
… with rear twin beds
… with Murphy bed
… with rear bathroom
… with dual twin beds

Browse all features →

Class C motorhomes

… with bunk over cab
… with bunk beds
… with rear bathroom
… with rear twin beds
… with Murphy bed
… with outdoor kitchen
… with outdoor TV

Browse all features →

Fifth wheel trailers

… with bath and a half
… with two bathrooms
… with bunk beds
… with two bedrooms
… with side patio
… with rear patio
… with outdoor kitchen
… with washer/dryer
… with front living

Browse all features →

Travel trailers

… with bunk beds
… with two bedrooms
… with Murphy bed
… with outdoor kitchen
… with rear bath
… with front bedroom

Browse all features →

Popup campers

under $10k
under $15k
under 2,000 lbs
under 3,000 lbs

Browse all features →

RV dealers by metro area

Los Angeles Dallas–Fort Worth Houston Atlanta Phoenix Tampa Bay Orlando Denver Chicago Seattle Nashville Toronto Browse all metro areas →

Explore

RV floor plans
Browse inventory
Dealers
Shopping tips

Company

About
Our story
Contact

For dealers

Dealer websites & CRM
Dealer insights

Join our mailing list

We don't send much, but you won't want to miss it!

Fax

The RV search engine. Find your dream RV.

We do our best to keep listing details accurate, but pricing, specifications, and availability come from third-party sources and can change without notice. We can't guarantee accuracy, so please confirm the details with the dealer before making any decisions. See something inaccurate? Contact us.

© 2026 RV Envy. All rights reserved.

For AI agentsPrivacy Terms

2018 Grand Design Momentum 399TH for sale in Tampa, FL | RV Envy

Home
Inventory
2018 Grand Design Momentum 399TH

2018 Grand Design Momentum 399TH

UsedFifth wheel|Stock #2692388|Located at Camping World in Tampa, FL

$49,995

2018 Grand Design Momentum 399TH

Used · Fifth wheel

$49,995

Camping World – Tampa

4811 McIntosh Rd

Dover, FL 33527

(813) 413-1782

Stock #2692388

2018 Grand Design Momentum 399TH floor plan

Specifications

Length43 ft 4 in

Dry weight15,900 lbs

Sleeps4 people

Slideouts2

Full specifications

Dry weight15,900 lbs

Length43.3 ft

Sleeps4

Slides2

Options and equipment may differ from those listed. We do our best to ensure accuracy, but please confirm all details with the dealer before purchase.

Get more info

2018 Momentum 399TH

Name *(required)

Email

Phone

ZIP code

I'm interested in

More informationSchedule a viewingTrade-in quoteDiscuss price

Time frame to buy

Message

Preferred contact method

EmailPhone callText message

Keep me anonymous

The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

Fax

Dealer information

Camping World – Tampa

4811 McIntosh Rd
Dover, FL 33527

Specifications

Length

43 ft 4 in

Dry weight

15,900 lbs

Sleeps

4 people

Slideouts

2

Specifications

Length

43 ft 4 in

Dry weight

15,900 lbs

Sleeps

4 people

Slideouts

2

Full specifications

As provided in the original listing

Dry weight15,900 lbs

Length43.3 ft

Sleeps4

Slides2

Full specifications

As provided in the original listing

Dry weight15,900 lbs

Length43.3 ft

Sleeps4

Slides2

Price history

Days listed

21

Price history

Days listed

21

Get more info

2018 Momentum 399TH

Name *(required)

Email

Phone

ZIP code

I'm interested in

More informationSchedule a viewingTrade-in quoteDiscuss price

Time frame to buy

Message

Preferred contact method

EmailPhone callText message

Keep me anonymous

The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

Fax