01 What makes it unique
KZ lists the 2007 Jag 28JBSS at 6,130 lb dry, a GVWR of 10,000 lb, a net carrying capacity of 3,870 lb and a tongue weight of 780 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 29' long and 131" high. KZ prints its tanks as 30 gal fresh, 35 gal grey, 35 gal black.
Among the 19 Jag floorplans KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 10 from the lightest, in a range from 3,840 lb (Jag 20J) to 8,724 lb (Jag 38J2S). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year); model year 2007 comes from where the maker files it on its own site, not from the document’s text.
How the 28JBSS differs from the other fourteen Jag travel trailers. Most distinctive first. How these ranks are worked out.
- Cargo capacity as a share of GVWR, 38.7%: largest of eleven; next is the 28JSS (37.7%).
- Cargo capacity, 3,870 lb: second-largest of fifteen, between the 28JSS (3,770 lb) and the 32JSS (3,940 lb).
- Tongue weight, 780 lb: fourth-heaviest of fifteen, between the 38JSS (700 lb) and the 33J2S (798 lb).
- Tongue weight as a share of dry weight, 12.7%: fourth-largest of fifteen, between the 38J2S (12.6%) and the 20J (13.3%).
- Dry weight, 6,130 lb: seventh-heaviest of fifteen, between the 29JBS (5,620 lb) and the 28JSS (6,230 lb).
- Length, 29 ft: seventh-shortest of fifteen, between the 26JS (27 ft 3 in) and the 28JSS (29 ft 3 in).
- GVWR, 10,000 lb: highest of fifteen, level with the 28JSS, 29JSS and four others; next are the 25JQ, 25JS and three others (7,000 lb).
Next to the 29JBS, the nearest lighter floorplan by dry weight, the 28JBSS is 510 lb heavier by dry weight, has a GVWR 3,000 lb higher, has 2,490 lb more cargo capacity, has a tongue weight 140 lb heavier and is 5 in shorter; the two publish the same exterior height, interior height, fresh tank, grey tank and black tank.
Next to the 28JSS, the nearest heavier floorplan by dry weight, the 28JBSS is 100 lb lighter by dry weight, has 100 lb more cargo capacity, has a tongue weight 120 lb heavier and is 3 in shorter; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 29'
- Exterior height
- 131"
- Exterior width
- 96"
- Interior height
- 82"
Weights
- Dry / unit base weight (UVW)
- 6,130 lb
- GVWR (max loaded)
- 10,000 lb
- Net cargo / payload (CCC)
- 3,870 lb
- Hitch / tongue weight
- 780 lb
Capacities
- Fresh water
- 30 gal
- Grey water
- 35 gal
- Black water
- 35 gal
Running gear
- Hitch type
- Bumper pull
- Tire size
- 15"
Sleeping & layout
- Sleeps
- Not published by KZ
- Dry Axle Wt.
- 5350
- Refrigerator (cu.')
- 6
- Water Heater Cap. (gal.)
- 6
- LP Gas Cap. (lbs.)
- 30
- Furnace BTUs (1000’s)
- 25
- Model year source
- The brochure itself prints no model year; KZ files it under 2007 in its own brochure folder (kz-rv.com/brochures/2007/).
- Awning
- 17'
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (10,000 lb) and the upper loaded tongue estimate (1,500 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433).
03 The Jag floorplan family
KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year) lists 19 Jag floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Jag 20J | 21'8" | — | Profiled |
| Jag 21JQ | 22'4" | — | Profiled |
| Jag 24JB | 26'10" | — | Profiled |
| Jag 25JS | 25'6" | — | Profiled |
| Jag 29JB | 29'5" | — | Profiled |
| Jag 25JQ | 24'9" | — | Profiled |
| Jag 26JS | 27'3" | — | Profiled |
| Jag 23JFS | 23'8" | — | Profiled |
| Jag 29JBS | 29'5" | — | Profiled |
| Jag 28JBSS | 29' | — | Profiled |
| Jag 25JFS | 26' | — | Profiled |
| Jag 28JSS | 29'3" | — | Profiled |
| Jag 29JSS | 30' | — | Profiled |
| Jag 32JSS | 33'6" | — | Profiled |
| Jag 33J2S | 34'2" | — | Profiled |
| Jag 28JFSS | 29'8" | — | Profiled |
| Jag 28JF2S | 29'8" | — | Profiled |
| Jag 38JSS | 38'8" | — | Profiled |
| Jag 38J2S | 38'8" | — | Profiled |
KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year) lists 19 Jag floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Jag 28JBSS
KZ prints no sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
5,620 lb dry and 7,000 lb GVWR, against this model’s 6,130 lb and 10,000 lb.
6,230 lb dry and 10,000 lb GVWR, against this model’s 6,130 lb and 10,000 lb.
06 Loading it for a trip
A full 30-gallon fresh tank is about 249 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 6% of the Jag 28JBSS’s 3,870 lb cargo capacity, leaving 3,621 lb. Across 15 Jag travel-trailer floorplans the water share runs 6% to 18%, and 13 give up more than this one. Nearest on that share: Jag 32JSS at 6% and Jag 28JSS at 7%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).
07 Where this floorplan sits
Closest sibling: the Jag 28JSS, nearest on the published figures. It differs on 4 of the 8 fields both publish (this plan first): length 29 ft 0 in vs 29 ft 3 in; dry weight 6,130 lb vs 6,230 lb; cargo capacity 3,870 lb vs 3,770 lb; hitch weight 780 lb vs 660 lb. They match on GVWR, fresh tank, grey tank and black tank.
| Jag travel-trailer plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 10,000 | 9–15 of 15 | 6,000–10,000 |
| Dry weight (lb) | 6,130 | 9 of 15 | 3,840–8,724 |
| Cargo capacity (lb) | 3,870 | 14 of 15 | 1,380–3,940 |
| Hitch weight (lb) | 780 | 12 of 15 | 440–1,110 |
| Length | 29 ft 0 in | 7 of 15 | 21 ft 8 in–38 ft 8 in |
Either side of it by GVWR: Jag 29JBS is 3,000 lb lighter (7,000 lb GVWR); Jag 28JSS matches it at 10,000 lb GVWR.
| Nearest Jag travel-trailer siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Jag 28JBSS | 29 ft 0 in | — | 6,130 | 10,000 | 3,870 | 780 | 30 |
| Jag 28JSS | 29 ft 3 in | — | 6,230 | 10,000 | 3,770 | 660 | 30 |
| Jag 32JSS | 33 ft 6 in | — | 6,700 | 10,000 | 3,940 | 660 | 30 |
| Jag 29JSS | 30 ft 0 in | — | 6,320 | 10,000 | 3,680 | 1,110 | 30 |
| Jag 33J2S | 34 ft 2 in | — | 7,031 | 10,000 | 2,969 | 798 | 30 |
| Jag 38JSS | 38 ft 8 in | — | 7,780 | 10,000 | 2,220 | 700 | 30 |
All 19 Jag floorplans: Jag line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry or base (lb) | Sleeps | Length |
|---|---|---|---|---|
| Jag 28JBSS | 10,000 | 6,130 | — | 29 ft 0 in |
| Aurora 31KDS | 10,000 | 7,743 | — | 36 ft 3 in |
| Black Series HQ17 | 10,000 | 6,000 | 5 | 24 ft 0 in |
| Classic 30RB | 10,000 | 7,725 | 5 | 31 ft 5 in |
| Sportster 270THR | 10,000 | 6,840 | 4 | 30 ft 8 in |
| MXT MXT3090 | 10,000 | 7,560 | — | 35 ft 9 in |
| Sportster X 20X | 10,000 | 7,080 | 4 | 26 ft 9 in |
Against the Jag 28JBSS: the Aurora 31KDS is 7 ft longer; the Black Series HQ17 is 5 ft shorter; the Classic 30RB is 2 ft longer.
08 Common questions about the Jag 28JBSS
How much does the Jag 28JBSS weigh?
6,130 lb dry; 10,000 lb GVWR, the most it may weigh loaded.
How much can the Jag 28JBSS carry?
3,870 lb, 39% of its GVWR (median across 1,416 travel trailers here: 23%). A full fresh tank uses 249 lb of it.
What is the tongue weight of the Jag 28JBSS?
780 lb as published, 13% of the dry weight (median across 2,002 travel trailers here: 12%).
What size tow vehicle does the Jag 28JBSS need?
A tow rating of at least 10,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
What are the tank capacities on the Jag 28JBSS?
Fresh 30, grey 35, black 35 gallons. Off hookups, fresh water runs out first.
How long is the Jag 28JBSS?
29' overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
12 of the 18 fields this catalogue tracks are published for the Jag 28JBSS. Not published: sleeps, slide count, axle count, refrigerator, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: kz-rv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 3 recall campaigns against the Jag line (a recall and a complaint are not the same thing).
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Jag line page.
Earlier model years
The record at the top of this page is the 28JBSS from 2007. The maker’s own documents for earlier model years also list the 28JBSS, and that year is printed here: 2006. The figures change from year to year, so check the year on the trailer’s own label. A field a year’s brochure does not print reads “Not published” and is never filled from another year.
| Model year | Dry (UVW) | GVWR | Cargo (CCC) | Dry hitch | Length | Sleeps |
|---|---|---|---|---|---|---|
| 2006 | 6,130 | 10,000 | 3,870 | 780 | 29' | Not published |
Full record for each earlier model year
2006 28JBSS 6,130 lb dry · 10,000 lb GVWR
Dimensions
- Exterior length
- 29'
- Exterior width
- 96"
- Exterior height
- 131"
- Interior height
- 82"
Weights
- Dry / unit base weight (UVW)
- 6,130 lbs
- GVWR (max loaded)
- 10,000 lbs
- Net cargo / payload (CCC)
- 3,870 lbs
- Dry hitch weight
- 780 lbs
Running gear
- Tire size
- 15"
- Hitch type
- Not stated in this brochure
- Model year of record
- 2006
Capacities
- Fresh water
- 30 gal
- Grey water
- 35 gal
- Black water
- 35 gal
- Awning
- 17'
Sleeping
- Sleeps
- Not published
As printed in this brochure
- Dry Axle Wt. (as printed)
- 5350
- Refrigerator (cu.') (as printed)
- 6
- Water Heater Cap. (gal.) (as printed)
- 6
- LP Gas Cap. (lbs.) (as printed)
- 30
- Furnace BTUs (1000’s) (as printed)
- 25
- Exterior height label as printed
- Exterior Height (w/ A/C)
Source for 2006. Printed in KZ RV’s Jag brochure (www.kz-rv.com). The document itself prints no model year; KZ RV files it under 2006 in its own brochure folder. Dry weight plus cargo capacity equals the printed GVWR exactly (6,130 + 3,870 = 10,000 lb). Nothing in this record is copied from another model year.
NHTSA record for 2006 Jag
2 recall campaigns filed with NHTSA name the Jag for model year 2006:
No owner complaint filed with NHTSA names the Jag for model year 2006. NHTSA files recalls and complaints by line and model year, not by floorplan, so a campaign listed here may not affect every Jag floorplan; the recall notice says which units it covers.