01 What makes it unique
Keystone publishes three weights for the Redwood 401LK: a shipping weight of 15,656 lb, a carrying capacity of 3,844 lb and a hitch weight of 3,684 lb. Those are Keystone’s own terms, and this page keeps them. Keystone does not call the first figure dry or unloaded weight, does not say the hitch figure is measured dry, and publishes no GVWR for any Redwood floorplan, so none of the three is renamed here and no loaded rating is worked out from them. The trailer’s own federal weight label, inside the door, is the document that carries its UVW, cargo capacity and GVWR.
Tank capacities are 50 gal fresh, 80 gal gray and 88 gal waste, as Keystone lists them. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank is roughly 415 lb on the road before anything else is loaded. The tire size Keystone lists is ST235/80R16G; a fifth wheel puts its pin load into the truck bed, so it counts against the truck’s payload rather than its tow rating.
Against the 3 Redwood floorplans profiled here, this one is the 1st by Keystone’s shipping weight, in a range from 15,656 lb (401LK) to 17,655 lb (420FL). Every figure in that comparison comes from the same Keystone page type for the same model year, so the comparison inside the series is like for like.
Every number on this page was read on 5 Nov 2026 from Keystone’s own floorplan page for the Redwood 401LK. That page carries no model year, so the year comes from the roster page that links it, which lists the Redwood floorplans under the heading “2027 Floorplans”. Keystone notes that its website reflects the most recent production run and that features and specifications change during the year.
How the 401LK differs from the other two Redwood floorplans. Most distinctive first. How these ranks are worked out.
- Shipping weight (Keystone’s term), 15,656 lb: lightest of three; next is the 412GK (17,110 lb).
- Hitch weight as a share of shipping weight, 23.5%: largest of three; next is the 420FL (21%).
- Length, 42 ft 7 in: shortest of three; next are the 412GK and 420FL (44 ft 9 in).
- Fresh tank, 50 gal: smallest of three; next are the 412GK and 420FL (54 gal).
- Grey tank, 80 gal: smallest of three; next are the 412GK and 420FL (88 gal).
- Carrying capacity (Keystone’s term), 3,844 lb: second-smallest of three, between the 420FL (3,345 lb) and the 412GK (3,890 lb).
- Hitch weight as Keystone lists it, 3,684 lb: second-lightest of three, between the 412GK (3,525 lb) and the 420FL (3,710 lb).
Next to the 412GK, the nearest heavier floorplan by shipping weight, the 401LK is 1,454 lb lighter by shipping weight, has 46 lb less carrying capacity, has a hitch weight 159 lb heavier, is 2 ft 2 in shorter, has a fresh tank 4 gal smaller and has a grey tank 8 gal smaller; the two publish the same exterior height and sleeping capacity.
02 Full specifications
Dimensions
- Exterior length
- 42' 7"
- Exterior height
- 13' 6"
- Exterior width
- Not published by Keystone
Weights
- Dry / unit base weight (UVW)
- Not published by Keystone
- GVWR (max loaded)
- Not published by Keystone
- Shipping weight (Keystone’s term)
- 15,656 lb
- Carrying capacity (Keystone’s term)
- 3,844 lb
- Hitch weight, as Keystone lists it
- 3,684 lb
Capacities
- Fresh water
- 50 gal
- Gray water
- 80 gal
- Waste water
- 88 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- ST235/80R16G
Sleeping & layout
- Sleeps
- 4
- Propane
- 60 lb
- Refrigerator
- 18 cu ft
How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; fresh, grey and black tank sizes; camper trailer size chart.
Towing it
Can’t check: Keystone publishes no GVWR. A tow check needs the GVWR, the most the trailer may weigh loaded, and Keystone prints none for this floorplan, so this site does not work one out. Read the GVWR on the trailer’s own federal weight label and hold it against your tow vehicle’s ratings.
03 The Redwood floorplan family
Keystone lists 3 Redwood floorplans for 2027. 3 have a complete Keystone figure set and no existing page here, and are profiled, from 15,656 lb to 17,655 lb shipping weight; the others are catalogued on this page with the reason against each. Keystone publishes shipping weight, carrying capacity and hitch weight for these trailers, and no GVWR.
Keystone lists 3 Redwood floorplans for 2027. 3 are profiled here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What Keystone does not publish for the Redwood
No GVWR, no unloaded (dry) weight under that name, no dry hitch weight and no exterior width appear on Keystone’s floorplan pages for this series, so those rows read as not published. Nothing is filled from a sibling floorplan, 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). On a Redwood those figures come from the trailer, not from this page, and they govern the towing decision.
05 How it compares
17,110 lb shipping weight and 3,890 lb carrying capacity, against this plan’s 15,656 lb and 3,844 lb.
07 Where this floorplan sits
Closest sibling: the Redwood 412GK, nearest on the published figures. It differs on 4 of the 5 fields both publish (this plan first): length 42 ft 7 in vs 44 ft 9 in; hitch weight 3,684 lb vs 3,525 lb; fresh tank 50 gal vs 54 gal; grey tank 80 gal vs 88 gal. They match on sleeps.
| Redwood plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Hitch weight (lb) | 3,684 | 2 of 3 | 3,525–3,710 |
| Length | 42 ft 7 in | 1 of 3 | 42 ft 7 in–44 ft 9 in |
| Fresh tank (gal) | 50 | 1 of 3 | 50–54 |
| Grey tank (gal) | 80 | 1 of 3 | 80–88 |
| Sleeps | 4 | 1–2 of 3 | 4–6 |
| Nearest Redwood siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Redwood 401LK | 42 ft 7 in | 4 | — | — | — | 3,684 | 50 |
| Redwood 412GK | 44 ft 9 in | 4 | — | — | — | 3,525 | 54 |
| Redwood 420FL | 44 ft 9 in | 6 | — | — | — | 3,710 | 54 |
All 3 Redwood floorplans: Redwood line hub.
08 Common questions about the 401LK
What is the pin weight of the 401LK?
3,684 lb as published.
How many people does the 401LK sleep?
It is rated to sleep 4. 1 of the 3 Redwood floorplans that publish a count sleep more.
What are the tank capacities on the 401LK?
Fresh 50, grey 80 gallons.
How long is the 401LK?
42' 7" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
8 of the 18 fields this catalogue tracks are published for the 401LK. Not published: dry weight, GVWR, cargo capacity (CCC), exterior width, interior height, black tank, slide count, axle count, awning, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: keystonerv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 14 recall campaigns and 6 owner complaints (model years 2005 on) against the Walkabout & Redwood 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 suspension, unknown or other and structure.
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 Walkabout & Redwood line page.