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2024 GRAND DESIGN MOMENTUM 399TH
Fifth Wheel Toy Haulers
MSRP$128,475 Call for price
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.****
The Momentum Fifth Wheel Toy Hauler is the point where absolute luxu...
Updated: Wednesday, July 08, 2026 10:21 AM
Location: Yuma, Arizona
Seller: RV World Yuma
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Number of Axles: Tri
Roadworthy: Yes
Description: Experience comfort, quality, and residential-style living in this well-maintained 2018 Grand Design Fifth Wheel. Built with Grand Design's reputati...
Updated: Thursday, June 25, 2026 03:47 PM
Location: Tacoma, Washington
Seller: Brenda Welcker
Stock Number: F272CL
Exterior Length: 41 ft
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
VIN: 573FM4337K1207874
Description: Stock Number: F272CL41' 2019 Grand Design Momentum 376TH w/5 Slides & Generator - Toy Hauler.This well-kept 2019 Grand Design Momentum 376TH is a ...
Updated: Wednesday, July 08, 2026 08:05 AM
Location: Cleburne, Texas
Seller: PPL Motor Homes - Cleburne
Stock Number: 86876
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Exterior Color: WHITE
Description: Used 2016 Grand Design Momentum 376TH
Details: You are sure to love all of the entertainment space that this Grand Design Momentum model 376TH has...
Updated: Thursday, July 09, 2026 10:18 AM
Location: Willis, Texas
Seller: Ron Hoover RV & Marine - North Houston
2020 GRAND DESIGN MOMENTUM 376TH
Fifth Wheel Toy Haulers
MSRP$83,194 USD $64,594
View Floor Plan
Stock Number: 18CONS237
Exterior Length: 41 ft
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Exterior Color: WHITE
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: Saturday, July 11, 2026 03:06 AM
Location: Suamico, Wisconsin
Seller: Kunes RV of Green Bay
Stock Number: SP-F114627A
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Number of Axles: Tri
VIN: 573FM4335L1114627
Description: Step into the world of luxury road travel with the exquisite 2020 Grand Design Momentum 376TH. This isn't just any RV; it's a toy hauler fifth whee...
Updated: Thursday, July 09, 2026 10:11 AM
Location: Spring, Texas
Seller: DeMontrond RV - Spring
2020 GRAND DESIGN MOMENTUM 376TH
Fifth Wheel Toy Haulers
MSRP$59,998 USD $49,998
View Floor Plan
Stock Number: SP-F114627A
Condition: Used
VIN: 573FM4335L1114627
Exterior Height: 13 ft 5 in
Shipping Weight: 15,900 lb
Furnace BTUs: 35000
Description: Description Other trailerStep into the world of luxury road travel with the exquisite 2020 Grand Design Momentum 376TH. This isn't...
Updated: Thursday, July 09, 2026 10:11 AM
Location: Spring, Texas
Seller: DeMontrond RV - Spring
Stock Number: 89916
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
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: Thursday, July 09, 2026 10:18 AM
Location: Corpus Christi, Texas
Seller: Ron Hoover RV & Marine - Corpus Christi
Stock Number: C1295
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Exterior Color: Burnt Orange, Silver, Blue, Burgundy, White Pearl
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, July 09, 2026 08:03 AM
Location: Haslet, Texas
Seller: Texas RV Guys
Stock Number: 361455
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
VIN: 573FM433XH1203438
Description: USED 2017 GRAND DESIGN MOMENTUM 376TH – 361455
Step into the luxurious world of the 2017 Grand Design Momentum 376TH, where comfort meet...
Updated: Wednesday, July 08, 2026 03:31 AM
Location: Ashland, Virginia
Seller: General RV Center - Virginia
Stock Number: 17543
Exterior Length: 41 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Exterior Color: WHITE
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: Thursday, May 28, 2026 12:09 PM
Location: Mayfield, Kentucky
Seller: Youngblood's RV & Outdoor
Stock Number: 356121
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Number of Axles: Tri
Description: USED 2023 GRAND DESIGN MOMENTUM 376THS – 356121
**Grand Design Momentum fifth wheel toy hauler 376THS highlights:**
* Below-Floor Garage...
Updated: Tuesday, June 23, 2026 04:08 PM
Location: Brownstown, Michigan
Seller: General RV Center - Brownstown
Stock Number: 40622B
Exterior Length: 41 ft 1 in
Condition: Used
Number of Axles: Tri
VIN: 573FM4331N1121478
Exterior Height: 13 ft 5 in
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: Friday, July 10, 2026 11:13 AM
Location: Mount Vernon, Washington
Seller: RV Country - Mt Vernon, WA
2021 GRAND DESIGN MOMENTUM 376THS
Fifth Wheel Toy Haulers
MSRP$79,995 USD $69,995
View Floor Plan
Stock Number: R7931A
Exterior Length: 41 ft 1 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Number of Axles: Tri
Description: Used 2021 Grand Design Momentum 376THS
Details: Grand Design Momentum toy hauler 376THS highlights: Master Suite Separate Living Room Theater Sea...
Updated: Wednesday, July 08, 2026 03:20 PM
Location: Tulsa, Oklahoma
Seller: Bob Hurley RV
2021 GRAND DESIGN MOMENTUM 376THS
Fifth Wheel Toy Haulers
MSRP$77,999 USD $54,999
View Floor Plan
Stock Number: 342326
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
Number of Axles: Tri
Description: USED 2021 GRAND DESIGN MOMENTUM 376THS – 342326
Step into the 2021 Grand Design Momentum 376THS, where luxury and functionality blend se...
Updated: Tuesday, July 07, 2026 03:32 AM
Location: Longmont, Colorado
Seller: General RV Colorado
Stock Number: 1101402
Exterior Length: 42 ft 9 in
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
Exterior Color: White
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: Thursday, July 09, 2026 10:08 AM
Location: Navasota, Texas
Seller: T&S RV & Sport
Stock Number: UPW9793
Exterior Length: 43 ft 1 in
Condition: Used
Number of Axles: Tri
VIN: 573FM4531M1117197
Exterior Height: 13 ft 5 in
Description:
Updated: Saturday, June 27, 2026 07:04 PM
Location: Fife, Washington
Seller: RV Country - Fife, WA
Exterior Length: 43 ft 1 in
Sleeps: 6
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Exterior Height: 13 ft 5 in
Description: 2021 Grand Design Momentum 397 TH Toy Hauler – Rebuilt Title
This unit is massive with tons of storage and living space, featuring:
• 3 slide o...
Updated: Monday, July 06, 2026 07:55 AM
Location: Cuba, Kansas
Seller: Cuba Sales
Stock Number: F123SF
Exterior Length: 43 ft
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Description: Stock Number: F123SF43' 2020 Grand Design Momentum 397TH w/3 Slides & Generator - Toy Hauler.Experience the ultimate blend of high-octane adventur...
Updated: Wednesday, July 08, 2026 08:05 AM
Location: Summerfield, Florida
Seller: PPL Motor Homes - Summerfield
Stock Number: UPO9675
Exterior Length: 43 ft 3 in
Condition: Used
VIN: 573FM4531J1206702
Hitch Weight: 3,375 lb
Fresh Water Tank Capacity: 157 gal
Description: Overview Discover the 2018 Grand Design Momentum 397TH: Where Every Journey Becomes an Unforgettable Experience! Step into the world of luxury trav...
Updated: Tuesday, July 07, 2026 03:12 AM
Location: Klamath Falls, Oregon
Seller: RV Country - Klamath Falls, OR
Stock Number: F296SF
Exterior Length: 43 ft
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
VIN: 573FM453XG1202592
Description: Stock Number: F296SF43' 2016 Grand Design Momentum 397TH w/3 Slides & Generator - Toy Hauler.Experience the pinnacle of luxury and adventure with ...
Updated: Wednesday, July 08, 2026 08:05 AM
Location: Summerfield, Florida
Seller: PPL Motor Homes - Summerfield
Stock Number: 358314
Exterior Length: 3 ft 8 in
Sleeps: 8
Number of Slide Outs: 3
Condition: New
VIN: 573FM4637TBB04772
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, July 10, 2026 03:32 AM
Location: Draper, Utah
Seller: General RV Center - Draper
Stock Number: 358068
Exterior Length: 3 ft 8 in
Sleeps: 9
Number of Slide Outs: 3
Condition: Used
VIN: 573FM4639PBB00728
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: Thursday, July 09, 2026 03:32 AM
Location: Orange Park, Florida
Seller: General RV Center - Jacksonville
Stock Number: 356051
Exterior Length: 3 ft 8 in
Sleeps: 9
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Description: CONSIGNMENT 2023 GRAND DESIGN MOMENTUM 397THS – 356051
Step into the world of luxury and adventure with the 2023 Grand Design Momentum 3...
Updated: Tuesday, June 23, 2026 04:08 PM
Location: Wixom, Michigan
Seller: General RV Center
Stock Number: ATL7607A
Exterior Length: 44 ft 2 in
Sleeps: 5
Number of Slide Outs: 3
Condition: Used
Exterior Color: Black w/; Charcoal, Silver, Blue, Burgundy, Burnt Orange. Silver w/; White, Mint, Charcoal. 10th ...
Description: Used 2023 Grand Design Momentum 397THS
Details: Grand Design Momentum fifth wheel toy hauler 397THS highlights: Dual Entry Two Full Baths Kitche...
Updated: Thursday, July 09, 2026 03:07 AM
Location: Norcross, Georgia
Seller: Southland RV
Stock Number: 92071C
Exterior Length: 44 ft 2 in
Sleeps: 3
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tri
Description: Used 2022 Grand Design Momentum 397THS
Grand Design Momentum fifth wheel toy hauler 397THS highlights:
Dual Entry
Two Full Baths
Kitchen Isla...
Updated: Monday, June 15, 2026 10:19 AM
Location: Salem, Virginia
Seller: Petes RV - Salem
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: Thursday, July 09, 2026 10:15 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: Thursday, July 09, 2026 12:33 PM
Location: Comfort, Texas
Seller: America Go RV - Comfort
