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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: Tuesday, August 11, 2026 08:57 AM
Location: Fife, Washington
Seller: RV Country - Fife, WA
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: Monday, August 31, 2026 12:06 PM
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: Monday, August 17, 2026 10:16 AM
Location: Draper, Utah
Seller: General RV Center - Draper
2024 GRAND DESIGN MOMENTUM 397THS
Fifth Wheel Toy Haulers
MSRP$148,933 Call for price
View Floor Plan
Stock Number: UPD9862
Exterior Length: 44 ft 2 in
Condition: Used
VIN: 573FM4639RBB02403
Hitch Weight: 3,375 lb
Fresh Water Tank Capacity: 140 gal
Description:
Updated: Tuesday, August 25, 2026 03:29 PM
Location: Fresno, California
Seller: RV Country - Fresno
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: Monday, August 17, 2026 10:16 AM
Location: Orange Park, Florida
Seller: General RV Center - Jacksonville
Stock Number: 364845
Exterior Length: 3 ft 8 in
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
VIN: 573FM4539L1114949
Description: USED 2020 GRAND DESIGN MOMENTUM 397THS – 364845
Step into the world of luxury and adventure with the 2020 Grand Design Momentum 397TH. T...
Updated: Tuesday, August 18, 2026 09:44 AM
Location: Wixom, Michigan
Seller: General RV Center
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: Tuesday, September 01, 2026 09:07 AM
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: Tuesday, September 01, 2026 08:51 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: Tuesday, September 01, 2026 08:51 AM
Location: Seguin, Texas
Seller: America Go RV - Seguin
Stock Number: 361949
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3828VBB05916
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 320G – 361949
Grand Design Momentum G-Class 320G Highlights:
11' Separate Garage
Exclusive ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
Stock Number: 361950
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3826VBB05915
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 320G – 361950
Grand Design Momentum G-Class 320G Highlights:
11' Separate Garage
Exclusive ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
Stock Number: 361951
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3824VBB05914
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 320G – 361951
Grand Design Momentum G-Class 320G Highlights:
11' Separate Garage
Exclusive ...
Updated: Friday, August 21, 2026 03:31 AM
Location: North Canton, Ohio
Seller: General RV Center - Canton
2027 GRAND DESIGN MOMENTUM G CLASS 320G
Fifth Wheel Toy Haulers
MSRP$150,513 Call for price
Stock Number: 361326
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3822VBB05913
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 320G – 361326
Grand Design Momentum G-Class 320G Highlights:
11' Separate Garage
Exclusive ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
2027 GRAND DESIGN MOMENTUM G CLASS 320G
Fifth Wheel Toy Haulers
MSRP$143,219 Call for price
Stock Number: 361328
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3825VBB05873
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 320G – 361328
Grand Design Momentum G-Class 320G Highlights:
11' Separate Garage
Exclusive ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Draper, Utah
Seller: General RV Center - Draper
Stock Number: T147862
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Hal...
Updated: Saturday, August 29, 2026 06:49 AM
Location: Indianapolis, Indiana
Seller: Blue Compass RV - Indy
Stock Number: 46115
Exterior Length: 36 ft 3 in
Condition: New
VIN: 573FM3822TBB04371
Exterior Width: 8 in
Hitch Weight: 2,300 lb
Description: Overview Elevate Your Explorations with the 2026 Grand Design Momentum G-Class 320G: Luxury Meets Adventure! The 2026 Grand Design Momentum G-Class...
Updated: Monday, August 31, 2026 11:36 AM
Location: Mount Vernon, Washington
Seller: RV Country - Mt Vernon, WA
Stock Number: 356777
Exterior Length: 3 ft
Sleeps: 5
Number of Slide Outs: 3
Condition: New
VIN: 573FM3829TBB05744
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 320G – 356777
**Grand Design Momentum G-Class toy hauler 320G highlights:**
* 11' Separate G...
Updated: Monday, August 17, 2026 10:16 AM
Location: West Chester, Pennsylvania
Seller: General RV Center - West Chester
Stock Number: T147233
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Hal...
Updated: Saturday, August 29, 2026 06:53 AM
Location: Georgetown, Kentucky
Seller: Blue Compass RV - Lexington
Stock Number: T144725
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Hal...
Updated: Saturday, August 29, 2026 06:53 AM
Location: Georgetown, Kentucky
Seller: Blue Compass RV - Lexington
Stock Number: T140286
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Hal...
Updated: Saturday, August 29, 2026 06:49 AM
Location: Delaware, Ohio
Seller: Blue Compass RV - Delaware
Stock Number: T138243
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Hal...
Updated: Saturday, August 29, 2026 06:49 AM
Location: Indianapolis, Indiana
Seller: Blue Compass RV - Indy
Stock Number: UT21868
Exterior Length: 36 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tandem
Description: Used 2025 Grand Design Momentum G-Class 320G
Details: Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage Bath and a Ha...
Updated: Tuesday, August 25, 2026 07:36 AM
Location: Delaware, Ohio
Seller: Blue Compass RV - Delaware
Stock Number: 361953
Sleeps: 6
Number of Slide Outs: 2
Condition: New
VIN: 573FM3721VBB05998
Exterior Width: 8 in
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 325G – 361953
Grand Design Momentum G-Class 325G Highlights:
• 15‑foot garage with rollover sofas...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
2027 GRAND DESIGN MOMENTUM G-CLASS 325G
Fifth Wheel Toy Haulers
MSRP$138,720 Call for price
Stock Number: 359804
Sleeps: 6
Number of Slide Outs: 2
Condition: New
VIN: 573FM3722VBB05993
Exterior Width: 8 in
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 325G – 359804
Grand Design Momentum G-Class 325G Highlights:
• 15‑foot garage with rollover sofas...
Updated: Monday, August 17, 2026 10:16 AM
Location: Draper, Utah
Seller: General RV Center - Draper
2027 GRAND DESIGN MOMENTUM G-CLASS 325G
Fifth Wheel Toy Haulers
MSRP$143,336 Call for price
Stock Number: 359493
Sleeps: 6
Number of Slide Outs: 2
Condition: New
VIN: 573FM3720VBB05944
Exterior Width: 8 in
Description: NEW 2027 GRAND DESIGN MOMENTUM G-CLASS 325G – 359493
Grand Design Momentum G-Class 325G Highlights:
• 15‑foot garage with rollover sofas...
Updated: Monday, August 17, 2026 10:16 AM
Location: Draper, Utah
Seller: General RV Center - Draper
Stock Number: 47490
Exterior Length: 35 ft 6 in
Condition: New
VIN: 573FM3727TBB05694
Exterior Width: 8 in
Hitch Weight: 2,474 lb
Description: Overview Welcome Aboard the 2026 Grand Design Momentum G-Class 325G: Redefining Travel with Every Mile! The 2026 Grand Design Momentum G-Class 325G...
Updated: Saturday, August 29, 2026 03:38 AM
Location: Fresno, California
Seller: RV Country - Fresno
Stock Number: 46925
Exterior Length: 35 ft 6 in
Condition: New
VIN: 573FM3722TBB05196
Exterior Width: 8 in
Hitch Weight: 2,474 lb
Description: Overview Venture into Luxury with the 2026 Grand Design Momentum G-Class 325G: Your Home on the Open Road! Welcome to a new era of travel with the ...
Updated: Tuesday, August 18, 2026 09:23 AM
Location: Fife, Washington
Seller: RV Country - Fife, WA
