Recall 21V236 affects 211 2021 Forest River Rockwood and Flagstaff fifth-wheel RVs for an underrated pin box. Free repair at Forest River dealers.
Forest River is recalling 211 2021 Rockwood and Flagstaff fifth wheel RVs because the pin box is under-rated for the vehicle's gross weight rating. An under-rated pin box can fail and increase crash risk, and Forest River dealers will complete the recall repair free of charge.
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What's wrong?
The pin box on a 2021 Forest River Rockwood or Flagstaff fifth-wheel RV is the metal hitch structure at the front of the trailer. It connects the trailer to the tow vehicle's fifth-wheel hitch and carries the pulling and vertical loads while the trailer is being towed. The rating of that part has to match the trailer's Gross Vehicle Weight Rating, or GVWR, which is the maximum weight the RV is designed to carry.
On affected RVs, a 10,000 lbs. rated pin box was specified where the vehicle needed a 16,000 lbs. rated pin box. That means the hitch structure was rated below the load the trailer was built to handle. Under towing loads, the under-rated part can begin to bend or deform instead of holding its shape.
An owner or operator can notice the pin box beginning to deform before failure. Look for visible bending, distortion, or a change in how the trailer sits or connects at the hitch.
Who's affected?
Covers the Rockwood and Flagstaff trailer lines with Forest River part 726406, a 10,000 lbs. rated pin box.
| 2021 Forest River Rockwood | body or structural component |
|---|---|
| 2021 Forest River Flagstaff | body or structural component |
| Units affected | 211 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
A pin box with too low a rating can deform and fail, increasing the risk of a crash. If you see deformation around the pin box, stop towing and call a Forest River dealer for instructions. Repair is free at any franchised Forest River dealer.
What should I do?
- Check your VIN to confirm your 2021 Forest River Rockwood or Flagstaff fifth wheel is included in this recall.
- Contact a franchised Forest River dealer to schedule the free pin-box inspection and replacement if needed; the repair addresses the under-rated pin box that can fail.
- Bring the owner letter if you have it. If not, reference recall number 21V236 when you call.
- Avoid towing the fifth wheel until the dealer confirms the pin box matches the vehicle's GVWR or completes the free repair.
What happens at the repair
At the dealer, a Forest River technician inspects the pin box on the Rockwood or Flagstaff fifth wheel and replaces it if the installed pin box is not rated for the trailer's gross vehicle weight rating. The recall repair is free, with parts and labor covered. Forest River has a general reimbursement plan on file for owners who already paid for this repair before the recall notice. Bring repair invoices and proof of payment to the service desk so the claim can be reviewed.
| Reimbursement | Reimbursement available |
|---|
Timeline
| April 5, 2021 | NHTSA published the recall |
|---|---|
| May 7, 2021 | Owner notification mailed |
| May 14, 2021 | Dealer notification began |
| May 14, 2021 | Dealer notification ended |
| May 14, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V236?
Recall 21V236 covers 211 2021 Forest River Rockwood and Flagstaff fifth wheel recreational vehicles with a pin box rated below the vehicle's Gross Vehicle Weight Rating. The pin box can fail and increase crash risk. Forest River dealers will inspect it and replace it for free when needed.
What should I do if my 2021 Forest River Rockwood or Flagstaff is on this recall?
Check your VIN to confirm your specific fifth wheel is included in recall 21V236. If it is, contact a Forest River dealer to schedule the pin box inspection. Reference recall number 21V236 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Forest River dealers will inspect the pin box and replace it for free if the installed part is not rated for the vehicle's Gross Vehicle Weight Rating.
What is the safety risk?
The safety risk is pin box failure. The pin box connects the fifth wheel to the tow vehicle, so an underrated part can fail under the trailer's rated load and increase crash risk. Confirm your VIN, then schedule the free dealer inspection.
What if I bought my Forest River fifth wheel used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your 2021 Rockwood or Flagstaff is included, then contact a Forest River dealer and reference recall number 21V236.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V236000 |
|---|---|
| Forest River customer service | 1-574-642-8943 |
| NHTSA recall # | 21V236 |
| NHTSA recall # (full) | 21V236000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →