2027 Grand Design Momentum G-Class325G

The Momentum G-Class 325G is a fifth-wheel toy hauler 35 ft 6 in long with a 15 ft garage, on two axles with two slide-outs and a 60-gallon fuel station. It is on Grand Design’s Momentum G-Class roster for 2027.

Grand Design’s page lists an unloaded vehicle weight of 12,603 lb, a GVWR of 18,000 lb and a pin weight of 2,638 lb. It publishes no cargo carrying capacity, so none is printed or computed here. Tanks are 140 gal fresh, 104 gal grey and 52 gal black, and it sleeps 6.

Grand Design’s page names the 394G and 350G as comparison floorplans.

How the 325G differs from the other eleven Momentum fifth wheels. Most distinctive first. Each rank counts only the siblings that publish that field, and a figure most of them share is left out.

• Dry weight, 12,603 lb: lightest of twelve; next is the 320G (13,100 lb).
• Length, 35 ft 6 in: shortest of twelve; next is the 320G (36 ft 3 in).
• Pin weight, 2,638 lb: third-lightest of twelve, between the 350G (2,600 lb) and the 351MS (3,000 lb).
• Pin weight as a share of dry weight, 20.9%: fifth-largest of twelve, between the 392M (20.2%) and the 381MS (21%).
• Slide-out count, 2: fewest of twelve, level with the 363G; next are the 320G, 344M and eight others (3).
• GVWR, 18,000 lb: shared with the 350G; of twelve, one lower and nine higher, nearest the 320G (16,400 lb) and the 344M, 351MS and 363G (19,000 lb).
• Grey tank, 104 gal: largest of twelve, level with the 344M, 392M and three others; next is the 363G (102 gal).
• Sleeping capacity, 6: shared with the 320G, 344M and two others; of twelve, two smaller and five larger, nearest the 350G and 399M (5) and the 394G, 395MT and 396DB (7).

Next to the 320G, the nearest heavier floorplan by dry weight, the 325G is 497 lb lighter by dry weight, has a GVWR 1,600 lb higher, has a pin weight 338 lb heavier, is 9 in shorter, has a fresh tank 42 gal larger, has a grey tank 52 gal larger, has a black tank 52 gal smaller and has one fewer slide-out; the two publish the same exterior height, interior height and sleeping capacity.

Momentum is Grand Design's toy-hauler family, and it spans four rosters across both tow types. The full-size Momentum fifth wheel is the flagship — a 101-inch wide-body coach on MORryde independent suspension with disc brakes, carrying a 60-gallon dual fuel station. The Momentum G-Class fifth wheel sits below it on MORryde CRE3000 suspension and a Rotoflex pin box with a 30-gallon fuel station, and the G-Class travel trailer puts that same garage behind a bumper pull. The Momentum MAV is the compact end — the lightest and cheapest way into a Momentum garage, and the one roster with no fuel station at all. The 325G on this page is highlighted; each other profiled plan links to its own page. The full MY2027 catalogue runs to 28 floorplans across the four rosters; eight are profiled in depth here and the rest are catalogued on the line hub with their weights.

Closest sibling: the Momentum 344M, nearest on the published figures. It differs on 4 of the 8 fields both publish (this plan first): length 35 ft 6 in vs 39 ft 11 in; dry weight 12,603 lb vs 15,910 lb; GVWR 18,000 lb vs 19,000 lb; hitch weight 2,638 lb vs 3,500 lb. They match on sleeps, fresh tank, grey tank and black tank.

Either side of it by GVWR: Momentum 320G is 1,600 lb lighter (16,400 lb GVWR); Momentum 350G matches it at 18,000 lb GVWR.

All 24 Momentum floorplans: Momentum line hub.

Against the 325G: the Cedar Creek 381MUD is 8 ft longer and sleeps 2 more; the Influence 3003RL sleeps 2 fewer; the North Point 383FLRB is 7 ft longer.

15 of the 18 fields this catalogue tracks are published for the 325G. Not published: cargo capacity (CCC), axle count, tire size (a description is published, a size is not).

Sourcing rules: methodology.