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2024 GRAND DESIGN MOMENTUM 399TH
Fifth Wheel Toy Haulers
MSRP$128,475 USD $88,497
View Floor Plan
Stock Number: CW18864A
Exterior Length: 43 ft 2 in
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Description: ****Stk#: CW18864A.****
~~~ NOW ON SPECIAL! ~~~
The Momentum Fifth Wheel Toy Hauler is th...
Updated: Friday, August 28, 2026 01:50 PM
Location: Yuma, Arizona
Seller: RV World Yuma
Stock Number: 211643A
Exterior Length: 43 ft 1 in
Sleeps: 5
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Description: Used 2023 Grand Design Momentum 399TH
Details: Grand Design Momentum fifth wheel toy hauler 399TH highlights: Fold-Down Side Patio 13' Garage Ba...
Updated: Friday, August 28, 2026 11:18 AM
Location: Cleburne, Texas
Seller: Fun Town RV-Cleburne
Stock Number: 117728
Exterior Length: 43 ft 1 in
Sleeps: 3
Number of Slide Outs: 3
Condition: Used
Exterior Color: Burnt Orange, Silver, Blue, Burgundy
Description: Used 2021 Grand Design Momentum 399TH-R
Details: Grand Design Momentum toy hauler 399TH-R highlights: Dual Entry Full and Half Bath Exterior LED...
Updated: Monday, August 31, 2026 08:41 AM
Location: Comfort, Texas
Seller: America Go RV - Comfort
Stock Number: 115175SB
Exterior Length: 43 ft 1 in
Sleeps: 3
Number of Slide Outs: 3
Condition: Used
Exterior Color: Burnt Orange, Silver, Blue, Burgundy, White Pearl
Description: Used 2020 Grand Design Momentum 399TH
Details: Grand Design Momentum toy hauler 399TH highlights: Dual Entry Full and Half Bath Exterior LED TV ...
Updated: Monday, August 31, 2026 08:41 AM
Location: Seguin, Texas
Seller: America Go RV - Seguin
