01 What Keystone publishes for the Carbon
Keystone lists 8 Carbon toy haulers for 2027 across 2 series: Carbon and Carbon Aluminum. 8 have a complete Keystone figure set and a page of their own here; the others are listed below with the reason against each. Across those 8, Keystone’s shipping weight runs from 7,252 to 15,370 lb, its carrying capacity from 3,064 to 5,295 lb and its hitch figure from 1,085 to 3,345 lb, on lengths of 32′ 3″ to 44′ 11″. Keystone publishes a shipping weight, a carrying capacity and a hitch figure for each, and no GVWR; those are Keystone’s terms and are kept, so this site does not call them dry weight, cargo capacity or a loaded rating (how the data is verified).
02 Carbon floorplans by series
Carbon · 6 floorplans Keystone lists for 2027
| Floorplan | Shipping wt (Keystone) | Carrying cap. (Keystone) | Hitch (Keystone) | Length | Sleeps | On this site |
|---|---|---|---|---|---|---|
| 310 | 11,085 lb | 5,295 lb | 2,380 lb | 35' 11" | 6 | Profiled |
| 361LT | 11,835 lb | 4,765 lb | 2,605 lb | 39' 11" | 7 | Profiled |
| 330 | 12,405 lb | 4,360 lb | 2,765 lb | 35' 11" | 6 | Profiled |
| 363 | 12,500 lb | 4,175 lb | 2,720 lb | 40' 7" | 6 | Profiled |
| 368 | 13,636 lb | 3,064 lb | 2,720 lb | 40' 7" | 7 | Profiled |
| 420 | 15,370 lb | 4,630 lb | 3,345 lb | 44' 11" | 7 | Profiled |
Read from Keystone’s Carbon roster (keystonerv.com, read 5 Nov 2026), which lists these floorplans under the heading “2027 Floorplans”.
Carbon Aluminum · 2 floorplans Keystone lists for 2027
| Floorplan | Shipping wt (Keystone) | Carrying cap. (Keystone) | Hitch (Keystone) | Length | Sleeps | On this site |
|---|---|---|---|---|---|---|
| 29WFO | 7,252 lb | 3,748 lb | 1,085 lb | 32' 3" | 6 | Profiled |
| 30WFO | 7,902 lb | 3,398 lb | 1,140 lb | 33' 5" | 6 | Profiled |
Read from Keystone’s Carbon Aluminum roster (keystonerv.com, read 5 Nov 2026), which lists these floorplans under the heading “2027 Floorplans”.
03 What Keystone does not publish
No GVWR, no unloaded (dry) weight under that name, no cargo carrying capacity under that name and no exterior width appear on Keystone’s Carbon floorplan pages, so each spec page reads “Not published by Keystone” for them and none is worked out from the three figures Keystone does print. The federal weight label inside the trailer’s entry door carries its unloaded weight, cargo carrying capacity and GVWR (49 CFR 567 and 571.120): read it on the unit itself before any towing decision. Keystone notes that its website reflects the most recent production run and that features and specifications change during the year.
05 Recalls
NHTSA lists 12 recall campaigns affecting this line. The earliest was reported 27 May 2015 and the most recent 9 Dec 2025.
| Reported | Campaign | Component | What can go wrong |
|---|---|---|---|
| 9 Dec 2025 | 25V844000 | Structure | Improperly secured panels can increase the risk of injury. |
| 23 Jun 2025 | 25V384000 | Structure | A rear gate that shifts or patio stairs that becomes unstable increase the risk of injury. |
| 15 Feb 2023 | 23V082000 | Fuel system, gasoline | A failure of the fuel station controller increases the risk of a fire. |
| 9 Aug 2022 | 22V604000 | Equipment | An awning that drops or extends beyond normal operation can increase the risk of injury. |
| 11 Mar 2022 | 22V144000 | Electrical system | Inoperable safety alarms increase the risk of injury. |
| 7 Jul 2020 | 20V398000 | Equipment | If the antenna detaches from the trailer while moving it may become a road hazard, increasing the risk of a crash. |
| 10 Apr 2018 | 18V226000 | Fuel system, gasoline | Fuel absorption into the main floor can increase the risk of a fire in the presence of an ignition source. |
| 22 Nov 2017 | 17V755000 | Equipment | In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury. |
| 12 Oct 2017 | 17V643000 | Suspension | If the suspension fails, the trailer's handling would be affected, increasing the risk of a crash. |
| 16 Dec 2016 | 16V908000 | Structure | If the door does not open as expected, there would be an increased risk of injury to those in the door's path. |
| 15 Nov 2016 | 16V825000 | Equipment | If the hinges separate from the ladder while in use, the ladder may fall from the vehicle, increasing the risk of injury. |
| 27 May 2015 | 15V317000 | Equipment | If the room extends while vehicle is in motion, there is an increased risk of a crash. |
Coverage is not complete: this list is a starting point, not a clearance (how it is built), so check a specific VIN at NHTSA before you buy and again before you tow.
This count covers every model year NHTSA files under the Keystone Carbon name.
06 Owner-reported problems
Owners have filed 9 complaints with NHTSA about this line for model years 2005 on. The earliest was filed 14 Apr 2014 and the most recent 14 Jul 2023. The breakdown below is what those owners actually reported, grouped by the component NHTSA assigned.
What gets reported
| Component group | Reports | Share |
|---|---|---|
| Structure | 4 | 44% |
| Seats | 2 | 22% |
| Fuel system, gasoline | 1 | 11% |
| Suspension | 1 | 11% |
| Wheels | 1 | 11% |
Most recent reports
The 9 owner reports filed on this line, newest first. Wording is NHTSA’s summary of what the owner described.
| Filed | Component | Miles | What the owner reported |
|---|---|---|---|
| 14 Jul 2023 | Structure › Body | — | Noticed a crack on the fiberglass under front slide out. This crack is associated with a frame failure on the upper portion of the fifth wheel close proximity to the hitch. I have not had a full failure but if someone does not notice or catch this the trailer frame could fail going down the road… |
| 13 Jun 2022 | Suspension | — | This involves our 2021 Keyston Carbon 403 RV (VIN: [XXX]. We purchased the vehicle in February 2021. Travelled about 1000 miles. Took it to Camping World in Wichita from our home for warranty work (not involving the problem) in October 2021; picked it up in March 2022 and drove home. Then on May… |
| 11 Jul 2018 | Wheels | 500 | This involves new chinese junk tires being put on toy haulers. Keystone one of the largest manufacturer of rv's puts the cheapest tires on even after being told by many owners that tires are exploding going down the highway. Not just runlets where it falls apart but fully inflated where it goes off… |
| 7 Nov 2017 | Structure › Body | 5,000 | Brace, articulating steps - fracture. The articulating steps to the main cabin are unsupported due to a fracture in the rearmost weld of the brace in which the step assembly rests on in the fully articulated/open state. Entry and egress by an occupant is characterized by a sudden drop during… |
| 4 Apr 2017 | Seats | 2,000 | Carbon 387: rear electric bed with integrated couch was replaced due to defects in outer seating material. Safety release latches (1 each side of back rest) that were present in the original design to prevent unintended pinch and/or injury from couch seat back articulation are communicated by… |
| 4 Apr 2017 | Seats | 1,000 | Carbon 387: rear electric bed with integrated couch has manually articulating and locking support legs attached. Support leg locks loosen and do not stay engaged after use. Unexpected failure to stay in the stowed position creates a high risk for injury during loading and unloading of the garage… |
| 4 Apr 2017 | Structure › Body | 2,000 | Carbon 387: articulating roof Access ladder fasteners (multiple) loosen and back out of the side wall during road motion/ use. Ladder brackets begin to separate from side wall creating an unsafe climbing condition. |
| 4 Apr 2017 | Structure › Body | 300 | Aluminum framework constructing the main living area slide-out protrudes into the tire area and contacts the rear tire during jounce conditions. [picture shown is framework pulled away from body side - as shown by molding mismatch] |
| 14 Apr 2014 | Fuel system, gasoline › Storage › Tank… | 50 | While driving my new 2014 Keystone, Carbon 5TH wheel on the freeway, the screws that hold the out door compartment for the fuel tank hose fell out and the door was hanging on by only several screws. If the door had fallen off or come open and the fuel nozzle fell out it could have caused a major… |
How this count is drawn. A report is counted here only when NHTSA’s own model field names this line. What the owner typed in the description is never used to attribute a report: our line names are ordinary English words, and an owner writing “imagine my surprise when the axle went” or naming the state of Montana is not reporting a Grand Design Imagine or a Keystone Montana.
Read these as reports, not as findings. Complaints are submitted by owners and NHTSA does not verify them; no complaint here has been confirmed as a defect, and none of them is a recall. The sample is also self-selected — only owners motivated to file appear in it — so a high count tracks how many units a line sold at least as much as how well it was built. Use the pattern, not the total: a component that keeps recurring is worth inspecting on any used unit. File or search complaints at NHTSA.