Keystone Cougar, model years 2017 to 2021. Filed by Keystone RV Company and reported to NHTSA on 24 May 2021. 1,990 vehicles potentially affected.
What the notice says Keystone RV Company (Keystone) is recalling certain 2017-2021 Keystone Cougar 368MBI trailers. The frame rails do not have enough cross support, which could cause them to buckle under certain side-load stress conditions.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Keystone's own number for this recall: 21-411. That is the number on the owner letter and on the dealer paperwork. 21V380 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 21V380 cover?
- Keystone Cougar, model years 2017-2021.
- What is wrong with them?
- Keystone RV Company (Keystone) is recalling certain 2017-2021 Keystone Cougar 368MBI trailers. The frame rails do not have enough cross support, which could cause them to buckle under certain side-load stress conditions.
- What can happen if it is not put right?
- A buckled frame rail can increase the risk of a crash.
- Is there a fix yet?
- Yes, and it is free. Dealers will add cross braces between each spring hanger and an outrigger between the tires on the off-door side of the vehicle, free of charge. Owner notification letters were mailed July 15, 2021. Owners may contact Keystone customer service at 1-866-425-4369.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Keystone calls this recall 21-411, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A buckled frame rail can increase the risk of a crash.”
affected
in the notice
caught
| Campaign | 21V380 |
|---|---|
| Filed by | Keystone RV Company |
| System at fault | Structure:Frame And Members |
| Reported to NHTSA | 24 May 2021 |
| Model years | 2017-2021 |
| Vehicles named | KEYSTONE COUGAR |
What the notice says today
The consequence
A buckled frame rail can increase the risk of a crash.
The remedy
Dealers will add cross braces between each spring hanger and an outrigger between the tires on the off-door side of the vehicle, free of charge. Owner notification letters were mailed July 15, 2021. Owners may contact Keystone customer service at 1-866-425-4369. Keystone's number for this recall is 21-411.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 901 notices in the record whose component field names structure. Across that group the median wait before owners were written to was 42 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 21V380, wording as read on 16 September 2026. https://carsmultiverse.com/recall/21v380/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Keystone notices we hold
- 26V313: 2024 Cougar, 2025-2026 Alpine, 2026 Montana, and Walkabout recreational trailers
- 26V211: 2026 Montana fifth wheel recreational trailers
- 26V161: 2026 Montana fifth wheel recreational trailers
- 26V045: 2026 Coleman travel trailers
- 26V026: 2025-2026 Fuzion, Raptor, Redwood, and 2024-2026 Voltage travel trailers
- 25V844: 2026 Impact and Carbon recreational trailers equipped with 3000 series patio rail kits
- 25V771: 2024-2026 Voltage recreational trailers
- 25V547: 2026 Springdale and Hideout travel trailers
All 170 Keystone campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V380 on 23 August 2026, they were:
- Defect summary
4e1c006c - Consequence
bd9971f6 - Remedy
108fa227
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V380 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Keystone Cougar, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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