Grand Design Momentum 344M

Name: Grand Design Momentum 344M
Brand: Grand Design
Price: 167600 USD

Fifth wheelbuilt 2025– (in production)Mixed build tierFindable on the used market

WHAT ONE COSTS

$167,600MSRP today

Still in production. A used 2023 would run roughly $98,900.

WHAT IT WEIGHS BEHIND YOUR TRUCK

~17,878 lbestimated as towed, for 2 people

dry weight 15,910 lb + fresh water (140 gal, full) 1,168 lb + propane + battery 200 lb + gear for 2 600 lb. Brochure dry weight omits water, propane, batteries and your gear; this estimate doesn't.

You want a tow rating around19,865 lb (10% margin)

GVWR (the sticker maximum)19,000 lb

Tongue weight, loaded~3,933 lb (22%)

WHICH TOW VEHICLES IT FITS: 14 OF 95

Judged the way the app judges: estimated loaded weight against each vehicle's rating less a 10% margin, per model year, because the 344M's published weights held steady. Fifth wheels also need a pickup bed and are held to the fifth-wheel rating where published.

VEHICLE	TOW RATING	VERDICT
Chevrolet Silverado / GMC Sierra 2500HD (Duramax, max tow) '24-26	22,500 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-26	36,000 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '11-19	23,300 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, gooseneck) '20-22	22,800 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 HO diesel, gooseneck) '23-26	23,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '17-19	32,500 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '20-22	37,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '11-16	21,600 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	38,000 lb	fits, loaded, with 10% margin
Ford F-450 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	40,000 lb	fits, loaded, with 10% margin
Ram 2500 (6.7 Cummins HO) '19-26	20,000 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins DRW, gooseneck) '13-18	31,210 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-26	36,610 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-24	37,090 lb	fits, loaded, with 10% margin

The 81it doesn't fit

Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~10,948 lb loaded
Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~10,948 lb loaded
Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26: over by ~8,608 lb loaded
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23: over by ~1,218 lb loaded
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19: over by ~1,588 lb loaded
Chevrolet Silverado 1500 (max tow) '14-18: over by ~7,438 lb loaded
Chevrolet Silverado EV (4WT) '24-26: over by ~6,628 lb loaded
Chevrolet Suburban (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
Chevrolet Tahoe (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
Chevrolet Traverse (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)
Chrysler Pacifica '17-26: no pickup bed (cannot hitch a fifth wheel)
Dodge Durango (5.7 / 6.4 Hemi, tow pkg) '14-26: no pickup bed (cannot hitch a fifth wheel)
Ford Bronco 4-dr (2.7 EcoBoost, tow pkg) '21-26: no pickup bed (cannot hitch a fifth wheel)
Ford Expedition (3.5 EcoBoost, tow pkg) '25-26: no pickup bed (cannot hitch a fifth wheel)
Ford Expedition (3.5 EcoBoost, tow pkg) '18-24: no pickup bed (cannot hitch a fifth wheel)
Ford Explorer (3.0 EcoBoost, tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
Ford F-150 (3.5 EcoBoost, max tow) '24-26: over by ~8,158 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '15-20: over by ~7,168 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '21-23: over by ~5,278 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '11-14: over by ~7,708 lb loaded
Ford F-150 Lightning (max trailer tow) '22-26: over by ~8,878 lb loaded
Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19: over by ~1,678 lb loaded
Ford F-250 Super Duty (6.7 diesel) '11-16: over by ~2,938 lb loaded
Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~14,278 lb loaded
Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~11,128 lb loaded
Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~11,128 lb loaded
Ford Transit (HD tow pkg) '15-26: no pickup bed (cannot hitch a fifth wheel)
GMC Acadia (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
GMC Hummer EV Pickup '22-26: over by ~11,128 lb loaded
GMC Sierra EV '24-26: over by ~7,078 lb loaded
GMC Yukon / Yukon XL (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
Honda Odyssey '18-26: no pickup bed (cannot hitch a fifth wheel)
Honda Passport (AWD) '19-26: no pickup bed (cannot hitch a fifth wheel)
Honda Pilot (AWD, tow pkg) '16-26: no pickup bed (cannot hitch a fifth wheel)
Honda Ridgeline (AWD) '17-26: over by ~13,378 lb loaded
Hyundai Palisade (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
Hyundai Santa Cruz (2.5T AWD) '22-26: over by ~13,378 lb loaded
Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~10,948 lb loaded
Jeep Grand Cherokee (5.7 Hemi) '11-21: no pickup bed (cannot hitch a fifth wheel)
Jeep Grand Cherokee (WL, tow pkg) '22-26: no pickup bed (cannot hitch a fifth wheel)
Jeep Grand Cherokee L (5.7 Hemi) '21-26: no pickup bed (cannot hitch a fifth wheel)
Jeep Grand Wagoneer (Hurricane, max tow) '22-26: no pickup bed (cannot hitch a fifth wheel)
Jeep Wagoneer (Hurricane, max tow) '22-26: no pickup bed (cannot hitch a fifth wheel)
Jeep Wrangler Unlimited 4-dr (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)
Kia Telluride (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
Land Rover Defender '20-26: no pickup bed (cannot hitch a fifth wheel)
Land Rover Discovery '17-26: no pickup bed (cannot hitch a fifth wheel)
Lexus GX 550 (tow pkg) '24-26: no pickup bed (cannot hitch a fifth wheel)
Lexus LX 600 '22-26: no pickup bed (cannot hitch a fifth wheel)
Mazda CX-90 (3.3 turbo, tow pkg) '24-26: no pickup bed (cannot hitch a fifth wheel)
Mercedes-Benz Sprinter '19-26: no pickup bed (cannot hitch a fifth wheel)
Nissan Armada (3.5 twin-turbo, tow pkg) '25-26: no pickup bed (cannot hitch a fifth wheel)
Nissan Armada (tow pkg) '17-24: no pickup bed (cannot hitch a fifth wheel)
Nissan Frontier (3.8 V6, tow pkg) '22-26: over by ~11,443 lb loaded
Nissan Pathfinder (tow pkg) '22-26: no pickup bed (cannot hitch a fifth wheel)
Nissan Titan (5.6 V8, tow pkg) '17-24: over by ~9,093 lb loaded
Nissan Titan XD (Cummins diesel) '16-19: over by ~6,438 lb loaded
Ram 1500 (3.0 Hurricane, max tow) '25-26: over by ~7,428 lb loaded
Ram 1500 (5.7 Hemi eTorque, max tow) '19-24: over by ~6,403 lb loaded
Ram 1500 (5.7 Hemi, max tow) '11-18: over by ~8,318 lb loaded
Ram 2500 (6.7 Cummins) '11-18: over by ~1,698 lb loaded
Ram ProMaster '14-26: no pickup bed (cannot hitch a fifth wheel)
Rivian R1S '22-26: no pickup bed (cannot hitch a fifth wheel)
Rivian R1T '22-26: over by ~7,978 lb loaded
Subaru Ascent '19-26: no pickup bed (cannot hitch a fifth wheel)
Subaru Outback (XT / Wilderness) '20-26: no pickup bed (cannot hitch a fifth wheel)
Tesla Cybertruck '24-26: over by ~7,978 lb loaded
Tesla Model X (tow pkg) '16-26: no pickup bed (cannot hitch a fifth wheel)
Tesla Model Y (tow pkg) '21-26: no pickup bed (cannot hitch a fifth wheel)
Toyota 4Runner (4.0 V6) '11-24: no pickup bed (cannot hitch a fifth wheel)
Toyota 4Runner (i-Force Max) '25-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Grand Highlander (i-Force Max) '24-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Highlander (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Land Cruiser (i-Force Max) '24-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Sequoia (i-Force Max, tow pkg) '23-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Sienna '21-26: no pickup bed (cannot hitch a fifth wheel)
Toyota Tacoma (i-Force Max, tow pkg) '24-26: over by ~12,028 lb loaded
Toyota Tacoma (V6, tow pkg) '16-23: over by ~11,758 lb loaded
Toyota Tundra (5.7 V8, tow pkg) '11-21: over by ~8,698 lb loaded
Toyota Tundra (i-Force Max, tow pkg) '22-26: over by ~7,078 lb loaded
Volkswagen Atlas (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)

These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →

THE SPECS

Length39.9 ft

Height (incl. A/C)13.5 ft

Width8.4 ft

Interior height8.4 ft

GVWR19,000 lb

Dry weight15,910 lb

Dry tongue weight3,500 lb

Sleeps6

Slide-outs3

Axles2

Fresh water140 gal

Grey water104 gal

Black water52 gal

Solar (standard)330 W

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP

1× Front queen bed, king optional(Permanent)60×80
1× Garage loft/Happijac bed(Stow-away)—
1× Garage sofa converts to a bed(Convertible)—

HOW IT'S BUILT: 4/5

WallsLaminated fiberglass

FrameAluminum

RoofWalk-on

UnderbellyEnclosed

Grand Design (Mixed tier): Grand Design's toy hauler family, spanning four sub-series: the flagship M-Class fifth wheels (the plain M/MS/TH codes), the lighter G-Class fifth wheels (3xxG), G-Class travel trailers (2xG/3xG), and the entry MAV travel trailers. The premium fifth wheels are laminated aluminum-cage coaches on par with Solitude; MAV is a lighter traditional build, which is why the line as a whole reads mixed rather than uniformly better.

YEAR BY YEAR: WHAT CHANGED

2025Introduced

FINDING ONE

Findable: a few listed nationwide most weeks. Why: only 2 model years; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

M-Class fifth wheel with an 11 ft garage — the shortest of the current full-size Momentums.

OTHER MOMENTUM FLOORPLANS

17MAV · 9,950 lb · sleeps 2 21G · 11,000 lb · sleeps 6 22MAV · 9,950 lb · sleeps 5 23G · 13,000 lb · sleeps 6 24MAV · 11,000 lb · sleeps 3 25G · 13,000 lb · sleeps 6 27G · 13,000 lb · sleeps 6 27MAV · 11,000 lb · sleeps 6 28G · 13,000 lb · sleeps 6 28MAV · 11,000 lb · sleeps 6 29GS · 13,000 lb · sleeps 6 30G · 13,000 lb · sleeps 7 31G · 13,000 lb · sleeps 6 320G · 16,400 lb · sleeps 6 the whole line →

Find one for sale

Live listings for the 344M on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

Inventory varies by site and day. Slim pickings? search the whole Momentum line ↗

Is the 344M your #1, or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about. Set your priorities as sliders, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.