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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: 42 ft
Sleeps: 4
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: Stock Number: F154EL42' 2020 Grand Design Momentum 376TH w/5 Slides & Generator - Toy Hauler.Experience the ultimate in residential-style travel w...
Updated: Tuesday, October 13, 2026 09:28 AM
Seller: PPL Motor Homes - El Reno
Used 2020 GRAND DESIGN MOMENTUM 376TH
Suamico, Wisconsin
MSRP$83,194 USD $50,594
View Floor Plan
Condition: Used
Exterior Length: 41 ft
Sleeps: 6
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Fresh Water Tank Capacity: 117 gal
Description: Consumers, please be aware that if you are purchasing a NEW Motorized OR Non-Motorized Recreational Vehicle from any Kunes RV dealership there will...
Updated: Wednesday, October 14, 2026 03:05 AM
Seller: Kunes RV of Green Bay
Condition: Used
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: Used 2019 Grand Design Momentum 376TH
Details: Grand Design Momentum 376TH toy hauler highlights: Kitchen Island Fireplace Outside Kitchen and T...
Updated: Tuesday, October 13, 2026 08:06 AM
Seller: Ron Hoover RV & Marine - Corpus Christi
Condition: Used
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: Used 2018 Grand Design Momentum 376TH
Details: Grand Design Momentum 376TH toy hauler highlights: Below Floor Garage Five Slide Outs Kitchen Isl...
Updated: Friday, October 09, 2026 09:02 AM
Seller: Texas RV Guys
Condition: Used
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: Used 2018 Grand Design Momentum 376TH
Details: Grand Design Momentum 376TH toy hauler highlights: Below Floor Garage Five Slide Outs Kitchen Isl...
Updated: Thursday, October 08, 2026 06:50 AM
Seller: Blue Compass RV - Lexington
Condition: Used
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Fresh Water Tank Capacity: 117 gal
Stock Number: 361455
Description: USED 2017 GRAND DESIGN MOMENTUM 376TH – 361455
Step into the luxurious world of the 2017 Grand Design Momentum 376TH, where comfort meet...
Updated: Monday, August 17, 2026 10:16 AM
Seller: General RV Center - Virginia
Condition: Used
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Description: Used 2017 Grand Design Momentum 376TH
Details: You are sure to love all of the entertainment space that this Grand Design Momentum model 376TH has...
Updated: Friday, October 02, 2026 09:52 AM
Seller: Youngblood's RV & Outdoor
Condition: Used
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Number of Axles: Tri
Exterior Height: 13 ft 5 in
Description: USED 2023 GRAND DESIGN MOMENTUM 376THS – 356121
**Grand Design Momentum fifth wheel toy hauler 376THS highlights:**
* Below-Floor Garage...
Updated: Wednesday, September 02, 2026 03:33 AM
Seller: General RV Center - Brownstown
Condition: Used
Exterior Length: 41 ft 1 in
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Exterior Height: 13 ft 5 in
Fresh Water Tank Capacity: 115 gal
Description: Overview Venture into Luxury with the 2022 Grand Design Momentum 376THS: Your Home on the Open Road! Welcome to a new era of travel with the 2022 G...
Updated: Tuesday, October 13, 2026 03:37 PM
Seller: RV Country - Mt Vernon, WA
Condition: Used
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Fresh Water Tank Capacity: 117 gal
Stock Number: 361439
Description: USED 2019 GRAND DESIGN MOMENTUM 376THS – 361439
Step into the 2019 Grand Design Momentum 376TH, where luxury meets functionality in a st...
Updated: Monday, August 17, 2026 10:16 AM
Seller: General RV Center - Illinois
Condition: Used
Exterior Length: 42 ft 9 in
Sleeps: 7
Number of Slide Outs: 3
Gross Vehicle Weight: 19,500 lb
Exterior Height: 13 ft 5 in
Description: Used 2014 Grand Design Momentum 385TH
Details: OFFERED IN "AS-IS" CONDITION - INQUIRE FOR PRICING This Grand Design Momentum toy hauler fifth w...
Updated: Wednesday, October 14, 2026 09:26 AM
Seller: T&S RV & Sport
Condition: Used
Exterior Length: 43 ft 6 in
Sleeps: 8
Number of Slide Outs: 3
Description: 2023 Grand Design Momentum 395MS Toy Hauler 5th Wheel Triple Axle — $85,000. VIN: 573FM4638PBB00381
We are selling our 2023 Grand Design Moment...
Updated: Monday, October 12, 2026 12:01 PM
Seller: Luke Kirkland
Condition: Used
Exterior Length: 43 ft 1 in
Gross Vehicle Weight: 20,000 lb
Number of Axles: Tri
Exterior Height: 13 ft 5 in
Fresh Water Tank Capacity: 155 gal
Description:
Updated: Tuesday, October 13, 2026 03:39 PM
Seller: RV Country - Fife, WA
Condition: New
Exterior Length: 44 ft
Sleeps: 8
Number of Slide Outs: 3
Fresh Water Tank Capacity: 140 gal
Stock Number: 358314
Description: NEW 2026 GRAND DESIGN MOMENTUM 397THS – 358314
The 2026 Grand Design Momentum 397THS is a flagship luxury toy hauler built for travelers...
Updated: Friday, October 02, 2026 03:33 AM
Seller: General RV Center - Draper
Condition: Used
Exterior Length: 3 ft 8 in
Sleeps: 9
Number of Slide Outs: 3
Fresh Water Tank Capacity: 140 gal
Stock Number: 358068
Description: USED 2023 GRAND DESIGN MOMENTUM 397THS – 358068
Step into the world of luxury and adventure with the 2023 Grand Design Momentum 397TH. T...
Updated: Sunday, September 13, 2026 03:30 AM
Seller: General RV Center - Jacksonville
Condition: Used
Exterior Length: 3 ft 8 in
Sleeps: 7
Number of Slide Outs: 3
Fresh Water Tank Capacity: 152 gal
Stock Number: 364845
Description: USED 2020 GRAND DESIGN MOMENTUM 397THS – 364845
Step into the world of luxury and adventure with the Grand Design Momentum 397TH. This s...
Updated: Thursday, September 10, 2026 03:32 AM
Seller: General RV Center - Grand Rapids
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: Wednesday, October 14, 2026 09:15 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: Wednesday, October 14, 2026 09:15 AM
Seller: America Go RV - Seguin
