2026 Heartland Sundance Fifth Wheel28DB

The Sundance Fifth Wheel 28DB leaves Heartland's factory at 8,605 lbs dry, with a published GVWR of 9,995 lbs and 1,390 lbs of cargo capacity between the two. Cargo capacity is 14% of the loaded rating, and cargo capacity is what remains for fresh water, gear, food, batteries and every dealer-installed accessory. Fresh water alone is 8.3 lb per gallon, so filling this trailer's 51-gallon fresh tank spends 423 lbs of that 1,390 lbs before anything else is loaded.

Pin weight is 1,650 lbs, which is 19% of the dry weight. That figure lands on the truck's rear axle and comes straight off its payload rating - not its towing rating, which is the number most often quoted and the wrong one for this decision. Pin weight rises as the trailer is loaded, and a fifth wheel loaded toward its cargo capacity will put substantially more than 1,650 lbs over the bed. Read the payload figure on your own door sticker rather than a brochure maximum for the model.

Off hookups: 127 gallons of grey and black capacity against 51 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Sundance Fifth Wheel roster this is the 3rd of 6 floorplans by dry weight, in a line that runs from 8,030 lbs to 13,235 lbs. It sits in the middle of the line by weight.

Plan the tow on loaded weight, not the 8,605 lbs dry figure: half the published cargo capacity brings this plan to about 9,300 lbs, and the published GVWR of 9,995 lbs is the limit (how to read trailer weights).

Every number above was read from Heartland's own factory page for this floorplan. It was read once, from that page only, so there is no second factory listing to check it against. Dry weight plus cargo capacity also equals the published GVWR exactly, which is the arithmetic check this site runs on every profiled floorplan. Where a figure is missing from this page the row says why: either Heartland does not print it on this floorplan's page, or this capture does not carry it.

This capture carries no floorplan description for this plan - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 28DB is a Sundance Fifth Wheel designation and this site does not decode it into a layout claim.

How the 28DB differs from the other five Sundance Fifth Wheel floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2026). How these ranks are worked out.

• Cargo capacity, 1,390 lb: smallest of six; next is the 24ML (1,470 lb).
• Cargo capacity as a share of GVWR, 13.9%: smallest of six; next is the 35MRBS (14.1%).
• Exterior height, 12 ft 1 in: lowest of six; next are the 24ML, 27MLOK and 29RLCS (12 ft 3 in).
• Fresh tank, 51 gal: smallest of six; next are the 24ML, 27MLOK and 29RLCS (52 gal).
• Sleeping capacity, 10: largest of five; next is the 35MRBS (8).
• GVWR, 9,995 lb: second-lowest of six, between the 24ML (9,500 lb) and the 27MLOK (10,400 lb).
• Pin weight, 1,650 lb: second-lightest of six, between the 24ML (1,505 lb) and the 27MLOK (1,665 lb).
• Pin weight as a share of dry weight, 19.2%: second-largest of six, between the 35MRBS (19.1%) and the 27MLOK (19.5%).
• Dry weight, 8,605 lb: third-lightest of six, between the 27MLOK (8,555 lb) and the 29RLCS (9,765 lb).
• Length, 34 ft 7 in: third-longest of six, between the 29RLCS (34 ft) and the 32RLBS (36 ft 7 in).

Next to the 27MLOK, the nearest lighter floorplan by dry weight, the 28DB is 50 lb heavier by dry weight, has a GVWR 405 lb lower, has 455 lb less cargo capacity, has a pin weight 15 lb lighter, is 1 ft 10 in longer, stands 2 in lower, has a fresh tank 1 gal smaller and sleeps eight more; the two publish the same grey tank and black tank.

Next to the 29RLCS (2027 page), the nearest heavier floorplan by dry weight, the 28DB is 1,160 lb lighter by dry weight, has a GVWR 1,605 lb lower, has 445 lb less cargo capacity, has a pin weight 140 lb lighter, is 7 in longer, stands 2 in lower, has a fresh tank 1 gal smaller and sleeps six more; the two publish the same grey tank and black tank.

These are Heartland's 2026 Sundance Fifth Wheel records for 24ML, 27MLOK and 28DB. All 3 are profiled, from 8,030 lb dry (24ML, 29' 3" long) to 8,605 lb dry (28DB, 34' 7" long), with published hitch weights of 1,505 to 1,665 lb. Dry weight plus cargo carrying capacity equals the published GVWR exactly on 3 of 3.

A full 51-gallon fresh tank is about 423 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 30% of the 28DB’s 1,390 lb cargo capacity, leaving 967 lb (97 lb per rated berth). Across 6 Sundance Fifth Wheel floorplans the water share runs 23% to 31%, and 1 gives up more than this one. Nearest on that share: Sundance Fifth Wheel 24ML at 29% and Sundance Fifth Wheel 35MRBS at 31%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).