01 What makes it unique
KZ lists the 2017 Spree S323RK at 8,420 lb dry, a GVWR of 9,500 lb, a net carrying capacity of 1,080 lb and a tongue weight of 1,070 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 37' 4" long and 11' 6" high. KZ prints its tanks as 40 gal fresh, 64 gal grey, 32 gal black.
Among the 10 Spree floorplans KZ’s Spree brochure (filed in KZ’s 2017 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 10 from the lightest, in a range from 5,590 lb (Spree S261RK) to 8,420 lb (Spree S323RK). 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 Spree brochure (filed in KZ’s 2017 brochure folder; the brochure prints no year); model year 2017 comes from where the maker files it on its own site, not from the document’s text.
How the S323RK differs from the other nine Spree floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 8,420 lb: heaviest of ten; next is the S323RE (8,410 lb).
- Cargo capacity as a share of GVWR, 11.4%: smallest of nine; next are the S303RL and S323RE (11.5%).
- Length, 37 ft 4 in: longest of ten; next is the S333BHK (36 ft 6 in).
- Grey tank, 64 gal: largest of ten; next are the S261RK and S261RKC (60 gal).
- Cargo capacity, 1,080 lb: second-smallest of ten, between the S303RL (1,010 lb) and the S261RKC and S323RE (1,090 lb).
- Tongue weight, 1,070 lb: second-heaviest of ten, between the S323RE (1,020 lb) and the S303RL (1,170 lb).
- Tongue weight as a share of dry weight, 12.7%: third-largest of ten, between the S323RE (12.1%) and the S322RL (13.9%).
- Exterior height, 11 ft 6 in: tallest of ten, level with the S323RE, S333BHK and S333RIK; next is the S333RLI (11 ft 3 in).
- GVWR, 9,500 lb: highest of ten, level with the S323RE, S333BHK and two others; next is the S303RL (8,800 lb).
Next to the S323RE, the nearest lighter floorplan by dry weight, the S323RK is 10 lb heavier by dry weight, has 10 lb less cargo capacity, has a tongue weight 50 lb heavier, is 1 ft 5 in longer and has a grey tank 32 gal larger; the two publish the same GVWR, exterior height, interior height, fresh tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 37' 4"
- Exterior height
- 11' 6"
- Exterior width
- 96"
- Interior height
- 82"
Weights
- Dry / unit base weight (UVW)
- 8,420 lb
- GVWR (max loaded)
- 9,500 lb
- Net cargo / payload (CCC)
- 1,080 lb
- Hitch / tongue weight
- 1,070 lb
Capacities
- Fresh water
- 40 gal
- Grey water
- 64 gal
- Black water
- 32 gal
Running gear
- Hitch type
- Bumper pull
- Tire size
- 15"
Sleeping & layout
- Sleeps
- Not published by KZ
- Dry Axle Weight*
- 7,350
- Refrigerator (cu. feet)
- 8
- Water Heater Cap. (gal. G/E w/DSI)
- 6
- LP Gas Cap. (lbs.)
- 60
- Furnace BTUs (1,000s)
- 30
- Model year source
- The brochure itself prints no model year; KZ files it under 2017 in its own brochure folder (kz-rv.com/brochures/2017/).
- Awning
- 12' w/17' opt.
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 (9,500 lb) and the upper loaded tongue estimate (1,425 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). The range starts at the published figure, because loaded is never lighter than that.
03 The Spree floorplan family
KZ’s Spree brochure (filed in KZ’s 2017 brochure folder; the brochure prints no year) lists 10 Spree floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Spree S261RK | 28' 9" | — | Profiled |
| Spree S261RKC | 28' 9" | — | Profiled |
| Spree S322RL | 35' 1" | — | Profiled |
| Spree S312BHK | 35' 6" | — | Profiled |
| Spree S333RLI | 36' 5" | — | Profiled |
| Spree S303RL | 34' 6" | — | Profiled |
| Spree S333BHK | 36' 6" | — | Profiled |
| Spree S333RIK | 36' 2" | — | Profiled |
| Spree S323RE | 35' 11" | — | Profiled |
| Spree S323RK | 37' 4" | — | Profiled |
KZ’s Spree brochure (filed in KZ’s 2017 brochure folder; the brochure prints no year) lists 10 Spree floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Spree S323RK
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
8,410 lb dry and 9,500 lb GVWR, against this model’s 8,420 lb and 9,500 lb.
06 Loading it for a trip
A full 40-gallon fresh tank is about 332 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 31% of the Spree S323RK’s 1,080 lb cargo capacity, leaving 748 lb. Across 10 Spree floorplans the water share runs 22% to 33%, and 1 gives up more than this one. Nearest on that share: Spree S261RKC at 30% and Spree S303RL at 33%. 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 Spree S333BHK, nearest on the published figures. It differs on 5 of the 8 fields both publish (this plan first): length 37 ft 4 in vs 36 ft 6 in; dry weight 8,420 lb vs 8,130 lb; cargo capacity 1,080 lb vs 1,370 lb; hitch weight 1,070 lb vs 860 lb; grey tank 64 gal vs 56 gal. They match on GVWR, fresh tank and black tank.
| Spree plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 9,500 | 6–10 of 10 | 6,800–9,500 |
| Dry weight (lb) | 8,420 | 10 of 10 | 5,590–8,420 |
| Cargo capacity (lb) | 1,080 | 2 of 10 | 1,010–1,530 |
| Hitch weight (lb) | 1,070 | 9 of 10 | 550–1,170 |
| Length | 37 ft 4 in | 10 of 10 | 28 ft 9 in–37 ft 4 in |
| Grey tank (gal) | 64 | 10 of 10 | 32–64 |
Either side of it by GVWR: Spree S323RE matches it at 9,500 lb GVWR; Spree S333BHK matches it at 9,500 lb GVWR.
| Nearest Spree siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Spree S323RK | 37 ft 4 in | — | 8,420 | 9,500 | 1,080 | 1,070 | 40 |
| Spree S333BHK | 36 ft 6 in | — | 8,130 | 9,500 | 1,370 | 860 | 40 |
| Spree S323RE | 35 ft 11 in | — | 8,410 | 9,500 | 1,090 | 1,020 | 40 |
| Spree S303RL | 34 ft 6 in | — | 7,790 | 8,800 | 1,010 | 1,170 | 40 |
| Spree S333RLI | 36 ft 5 in | — | 7,770 | 9,500 | 1,530 | 900 | 40 |
| Spree S333RIK | 36 ft 2 in | — | 8,160 | 9,500 | 1,340 | 740 | 40 |
All 10 Spree floorplans: Spree line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Spree S323RK | 9,500 | 8,420 | — | 37 ft 4 in |
| Coachmen Freedom Express Ultra Lite 292BHDS | 9,500 | 6,772 | 8 | 33 ft 4 in |
| Jay Flight 29RKS | 9,500 | 6,895 | 6 | 33 ft 9 in |
| Jay Flight SLX 280FKS | 9,500 | 7,465 | 3 | 33 ft 10 in |
| Mesa Ridge Limited MR331BHS | 9,500 | 7,955 | — | 37 ft 5 in |
| White Hawk 32BH | 9,500 | 8,140 | 9 | 38 ft 0 in |
| Touring Edition 2800ETL | 9,495 | 7,480 | 10 | 32 ft 11 in |
Against the Spree S323RK: the Coachmen Freedom Express Ultra Lite 292BHDS is 4 ft shorter; the Jay Flight 29RKS is 4 ft shorter; the Jay Flight SLX 280FKS is 4 ft shorter.
08 Common questions about the Spree S323RK
How much does the Spree S323RK weigh?
8,420 lb dry; 9,500 lb GVWR, the most it may weigh loaded.
How much can the Spree S323RK carry?
1,080 lb, 11% of its GVWR (median across 1,416 travel trailers here: 23%). A full fresh tank uses 332 lb of it.
What is the tongue weight of the Spree S323RK?
1,070 lb as published, 13% of the dry weight (median across 2,002 travel trailers here: 12%).
What size tow vehicle does the Spree S323RK need?
A tow rating of at least 9,500 lb, plus payload for the loaded tongue weight, passengers and cargo.
What are the tank capacities on the Spree S323RK?
Fresh 40, grey 64, black 32 gallons. Off hookups, fresh water runs out first.
How long is the Spree S323RK?
37' 4" 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 Spree S323RK. 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 7 recall campaigns and 6 owner complaints (model years 2005 on) against the Spree line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 6 complaints have been filed on this line — not enough to say what fails most often. They cover electrical system, equipment, service brakes, structure, trailer hitches and wheels.
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 Spree line page.
Owner’s manuals
The maker’s own owner’s manual for each model year on this page, linked where the maker publishes it. Each link goes to the maker’s file, labelled as the maker labels it; a year with no manual of its own is not filled from another year.
| Model year | Manual |
|---|---|
| 2017 | Sportsmen, Spree, Spree Connect & Spree Connect Lite (PDF on www.kz-rv.com; the maker’s manual for this line) |