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Stock Number: 15546
Exterior Length: 44 ft 11 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 394G
Details: Grand Design Momentum G-Class toy hauler 394G highlights: 15' Separate Garage Fireplace Priv...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Sanger, Texas
Seller: McClain's RV SuperStores - Sanger
Stock Number: 15818
Exterior Length: 44 ft 11 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 394G
Details: Grand Design Momentum G-Class toy hauler 394G highlights: 15' Separate Garage Fireplace Priv...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Corinth, Texas
Seller: McClain's RV SuperStores - Corinth
Stock Number: 15504
Exterior Length: 44 ft 11 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 394G
Details: Grand Design Momentum G-Class toy hauler 394G highlights: 15' Separate Garage Fireplace Priv...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Fort Worth, Texas
Seller: McClain's RV SuperStores - Fort Worth
Stock Number: CRV4314
Exterior Length: 44 ft 11 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Grand Design Momentum G-Class 394G
Details: Grand Design Momentum G-Class toy hauler 394G highlights: 15' Separate Garage Fireplace Priv...
Updated: Tuesday, July 28, 2026 03:14 AM
Location: Columbus, Wisconsin
Seller: Markquart RV - Columbus
Stock Number: 346149
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
VIN: 573FM4737TBB05130
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 394G – 346149
Grand Design Momentum G-Class toy hauler 394G highlights:
15' Separate Garage...
Updated: Monday, August 17, 2026 10:16 AM
Location: Ashland, Virginia
Seller: General RV Center - Virginia
Stock Number: 346143
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
VIN: 573FM4730TBB05129
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 394G – 346143
**Grand Design Momentum G-Class toy hauler 394G highlights:**
* 15' Separate ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Fort Pierce, Florida
Seller: General RV Center - Fort Pierce
Stock Number: 346147
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
VIN: 573FM4739TBB05128
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 394G – 346147
**Grand Design Momentum G-Class toy hauler 394G highlights:**
* 15' Separate ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
Stock Number: 346145
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
VIN: 573FM4735TBB05126
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 394G – 346145
Grand Design Momentum G-Class toy hauler 394G highlights:
15' Separate Garage...
Updated: Monday, August 17, 2026 10:16 AM
Location: Wixom, Michigan
Seller: General RV Center
Stock Number: 339900
Exterior Length: 3 ft 8 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 415G – 339900
Discover the 2026 Grand Design Momentum G-Class 415G, a luxurious haven on wheels d...
Updated: Monday, August 17, 2026 10:16 AM
Location: Orange Park, Florida
Seller: General RV Center - Jacksonville
Stock Number: 336876
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 415G – 336876
Discover the 2026 Grand Design Momentum G-Class 415G, a luxurious haven on wheels d...
Updated: Monday, August 17, 2026 10:16 AM
Location: Fort Pierce, Florida
Seller: General RV Center - Fort Pierce
Stock Number: 336879
Exterior Length: 3 ft 8 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: NEW 2026 GRAND DESIGN MOMENTUM G-CLASS 415G – 336879
Discover the 2026 Grand Design Momentum G-Class 415G, a luxurious haven on wheels d...
Updated: Monday, August 17, 2026 10:16 AM
Location: Draper, Utah
Seller: General RV Center - Draper
Stock Number: 45876
Exterior Length: 44 ft 11 in
Condition: New
VIN: 573FM4739SBB04009
Exterior Width: 8 in
Hitch Weight: 3,422 lb
Description: Overview Discover the 2025 Grand Design Momentum G-Class 415G: Where Every Journey Becomes an Unforgettable Experience! Step into the world of luxu...
Updated: Tuesday, September 01, 2026 03:09 PM
Location: Fife, Washington
Seller: RV Country - Fife, WA
Stock Number: B02030
Exterior Length: 44 ft 11 in
Sleeps: 7
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tandem
Description: Used 2024 Grand Design Momentum G-Class 415G
Details: Grand Design Momentum G-Class toy hauler 415G highlights: 14' Separate Garage Fireplace Pri...
Updated: Thursday, September 03, 2026 10:11 AM
Location: Comfort, Texas
Seller: America Go RV - Comfort
Stock Number: 46525
Exterior Length: 44 ft 10 in
Condition: New
VIN: 573FM4733TBB04797
Exterior Width: 8 in
Hitch Weight: 3,464 lb
Description: Overview Venture into Luxury with the 2026 Grand Design Momentum M-Class 399M: Your Home on the Open Road! Welcome to a new era of travel with the ...
Updated: Tuesday, September 01, 2026 03:10 PM
Location: Fresno, California
Seller: RV Country - Fresno
Stock Number: GR2490
Exterior Length: 44 ft 10 in
Sleeps: 9
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: 2026 Grand Design Momentum M-Class 399M
**IN STOCK**DON'T TELL GRAND DESIGN**
Stock No. GR2490
$139,995.00
Our top-of-the-line Momentum Fif...
Updated: Thursday, September 03, 2026 07:56 AM
Location: Southaven, Mississippi
Seller: Southaven RV
Stock Number: T133789
Exterior Length: 44 ft 10 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: New 2026 Grand Design Momentum 399M
Details: Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island ...
Updated: Wednesday, July 01, 2026 09:28 AM
Location: Lexington, South Carolina
Seller: Blue Compass RV - Columbia
Stock Number: 46524
Exterior Length: 44 ft 10 in
Condition: New
VIN: 573FM473XTBB04795
Exterior Width: 8 in
Hitch Weight: 3,464 lb
Description: Overview Elevate Your Explorations with the 2026 Grand Design Momentum M-Class 399M: Luxury Meets Adventure! The 2026 Grand Design Momentum M-Class...
Updated: Tuesday, September 01, 2026 03:10 PM
Location: Laughlin, Nevada
Seller: RV Country - Laughlin, NV
Stock Number: 15732
Exterior Length: 44 ft 10 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: New 2026 Grand Design Momentum 399M
Details: Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island ...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Sanger, Texas
Seller: McClain's RV SuperStores - Sanger
Stock Number: 358528
Exterior Length: 3 ft 8 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
VIN: 573FM4736TBB04793
Description: NEW 2026 GRAND DESIGN MOMENTUM M CLASS 399M – 358528
**Grand Design Momentum fifth wheel toy hauler 399M highlights:**
* Front Private ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Winter Garden, Florida
Seller: Independence RV by General RV Center - Winter Garden
Stock Number: 346163
Exterior Length: 3 ft 8 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
VIN: 573FM4735TBB04722
Description: NEW 2026 GRAND DESIGN MOMENTUM M CLASS 399M – 346163
**Grand Design Momentum fifth wheel toy hauler 399M highlights:**
* Front Private ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Fort Pierce, Florida
Seller: General RV Center - Fort Pierce
Stock Number: 346164
Exterior Length: 3 ft 8 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
VIN: 573FM4737TBB04723
Description: NEW 2026 GRAND DESIGN MOMENTUM M CLASS 399M – 346164
**Grand Design Momentum fifth wheel toy hauler 399M highlights:**
* Front Private ...
Updated: Monday, August 17, 2026 10:16 AM
Location: Orange Park, Florida
Seller: General RV Center - Jacksonville
Stock Number: 338373
Exterior Length: 3 ft 8 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
VIN: 573FM4735TBB04543
Description: NEW 2026 GRAND DESIGN MOMENTUM M CLASS 399M – 338373
Grand Design Momentum fifth wheel toy hauler 399M highlights:
Front Private Bedroom...
Updated: Friday, August 21, 2026 03:32 AM
Location: Ashland, Virginia
Seller: General RV Center - Virginia
Stock Number: 15270
Exterior Length: 44 ft 10 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: New 2026 Grand Design Momentum 399M
Details: Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island ...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Fort Worth, Texas
Seller: McClain's RV SuperStores - Fort Worth
Stock Number: 365911
Exterior Length: 3 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
VIN: 573FM4027PBB00386
Description: USED 2023 GRAND DESIGN MOMENTUM M CLASS 336M – 365911
Grand Design Momentum M-Class 336M Highlights:
Front Living Room
Rear Bedroom
Bel...
Updated: Thursday, September 03, 2026 03:31 AM
Location: Ashland, Virginia
Seller: General RV Center - Virginia
Stock Number: 362888
Exterior Length: 3 ft 3 in
Sleeps: 6
Number of Slide Outs: 5
Condition: Used
VIN: 573FM4028P1124408
Description: USED 2023 GRAND DESIGN MOMENTUM M CLASS 336M – 362888
The 2023 Grand Design Momentum M-Class 336M is the epitome of luxury and functiona...
Updated: Wednesday, September 02, 2026 03:31 AM
Location: Elizabethtown, Pennsylvania
Seller: General RV Center - Elizabethtown
Stock Number: 46294
Exterior Length: 39 ft 11 in
Condition: New
VIN: 573FM4227TBB04428
Hitch Weight: 3,300 lb
Interior Color: Dusk
Description: Overview Welcome Aboard the 2026 Grand Design Momentum M-Class 344M: Redefining Travel with Every Mile! The 2026 Grand Design Momentum M-Class 344M...
Updated: Tuesday, September 01, 2026 03:09 PM
Location: Fife, Washington
Seller: RV Country - Fife, WA
2026 GRAND DESIGN MOMENTUM M CLASS 344M
Fifth Wheel Toy Haulers
MSRP$173,098 USD $116,995
Stock Number: SAV7626
Exterior Length: 39 ft 11 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: New 2026 Grand Design Momentum M-Class 344M
Details: Grand Design Momentum M-Class toy hauler 344M highlights: Dual Opposing Slides Two Power Awn...
Updated: Wednesday, August 19, 2026 03:01 PM
Location: Richmond Hill, Georgia
Seller: Southland RV Savannah
2026 GRAND DESIGN MOMENTUM M CLASS 344M
Fifth Wheel Toy Haulers
MSRP$178,875 USD $113,595
Stock Number: 16367
Exterior Length: 39 ft 11 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
Number of Axles: Tri
Description: New 2026 Grand Design Momentum 344M
Details: Grand Design Momentum toy hauler 344M highlights: Dual Opposing Slides Two Power Awnings 11' Separat...
Updated: Wednesday, September 02, 2026 08:52 AM
Location: Rockwall, Texas
Seller: McClain's RV SuperStores - Rockwall
