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Used 2024 GRAND DESIGN MOMENTUM 399TH
Yuma, Arizona
MSRP$128,475 USD $88,497
View Floor Plan
Condition: Used
Exterior Length: 43 ft 2 in
Sleeps: 7
Number of Slide Outs: 3
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: ****Stk#: CW18864A.****
~~~ NOW ON SPECIAL! ~~~
The Momentum Fifth Wheel Toy Hauler is th...
Updated: Wednesday, September 30, 2026 12:42 PM
Seller: RV World Yuma
Condition: Used
Exterior Length: 43 ft 1 in
Sleeps: 5
Number of Slide Outs: 3
Gross Vehicle Weight: 20,000 lb
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: Wednesday, October 14, 2026 08:57 AM
Seller: Fun Town RV-Cleburne
Condition: Used
Exterior Length: 43 ft 1 in
Sleeps: 3
Number of Slide Outs: 3
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
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: Thursday, October 15, 2026 09:11 AM
Seller: America Go RV - Comfort
Used 2021 GRAND DESIGN MOMENTUM 399TH
North Canton, Ohio
MSRP$74,999 USD $64,997
View Floor Plan
Condition: Used
Exterior Length: 43 ft
Sleeps: 3
Number of Slide Outs: 3
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: USED 2021 GRAND DESIGN MOMENTUM 399TH – 367503
Grand Design Momentum toy hauler 399TH highlights:
Dual Entry
Full and Half Bath
Exterior...
Updated: Saturday, September 26, 2026 03:30 AM
Seller: General RV Center - Canton
Condition: Used
Exterior Length: 43 ft 1 in
Sleeps: 3
Number of Slide Outs: 3
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
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: Thursday, October 15, 2026 09:11 AM
Seller: America Go RV - Seguin
