Recall 21V426 affects 100 2018-2019 Kzrv Sidewinder RVs for a propane-regulator pressure defect. Repair is free at any franchised Kzrv dealer.
Kzrv is recalling 100 2018-2019 Sidewinder vehicles equipped with a Winntec model 6020 two-stage propane regulator because the regulator can fail and raise propane pressure. Increased pressure can enlarge flames in gas appliances and increase the risk of a fire, so Kzrv dealers will complete the recall repair free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The propane regulator on 2018-2019 Kzrv Sidewinder recreational vehicles controls the pressure from the onboard propane cylinders before propane reaches the appliances. It is a two-stage Winntec regulator, which means it steps cylinder pressure down in stages so propane equipment receives steady, usable pressure.
In affected Sidewinders, the second-stage valve seat inside the regulator can move out of position because its mechanical lock is inadequate. When that seal migrates, the regulator no longer controls propane flow and pressure correctly. The supply hoses can also release a liquid plasticizer into the regulator body; that liquid changes the seal material, making it degrade during use and move out of place more easily.
Owners can notice irregular performance from propane appliances, such as appliances running unevenly or acting differently than usual. A propane smell at the regulator is another warning sign, because it indicates the regulator is venting from high pressure.
Who's affected?
The listed Sidewinder trailers span the 2018 and 2019 model years, with the same LPG system component.
| 2018 Kzrv Sidewinder | Lpg systems |
|---|---|
| 2019 Kzrv Sidewinder | Lpg systems |
| Units affected | 100 |
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?
High propane pressure can make gas-appliance flames larger and increase fire risk. Treat irregular appliance performance or propane smell at the regulator as a warning sign, stop using propane appliances, and schedule service. Repair is free at any franchised Kzrv dealer.
What should I do?
- Check your VIN to confirm your 2018-2019 Kzrv Sidewinder is included in this recall.
- Contact a franchised Kzrv dealer to schedule the free propane-regulator replacement and leak test that fixes the overpressure risk in gas appliances.
- Bring the owner letter if you have it. If not, reference recall number 21V426 when you call.
- Stop using propane appliances until the regulator is replaced and the propane system passes the leak test.
What happens at the repair
At the dealer, a Kzrv technician replaces the propane regulator and tests the propane system for leaks. The replacement parts, leak test, and labor are free under the recall. Kzrv has a general reimbursement plan on file for owners who already paid for a related regulator repair. If you have prior repair paperwork, contact Kzrv customer service at 1-800-768-4016 ext. 154 or 153 and ask how to submit documentation under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| June 4, 2021 | NHTSA published the recall |
|---|---|
| August 3, 2021 | Owner notification mailed |
| August 4, 2021 | Dealer notification began |
| August 4, 2021 | Dealer notification ended |
| August 4, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V426?
Recall 21V426 covers 100 2018-2019 Kzrv Sidewinder RVs equipped with a Winntec model 6020 two-stage propane regulator. The regulator can fail and increase propane pressure, which can make gas-appliance flames larger and raise fire risk. Dealers will replace the regulator and test the propane system for leaks for free.
What should I do if my 2018-2019 Kzrv Sidewinder is on this recall?
Check your VIN to confirm your specific RV is included in recall 21V426. If it is, contact a franchised Kzrv dealer to schedule the propane regulator replacement and propane leak test. Reference recall number 21V426 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Kzrv dealers will replace the propane regulator and test the propane system for leaks free of charge.
What is the safety risk in recall 21V426?
The safety risk is fire. A failing Winntec model 6020 two-stage propane regulator can increase propane pressure, which can make flames larger in gas appliances. If your VIN is included, schedule the free regulator replacement and leak test before relying on the propane system.
What if I bought my Kzrv Sidewinder used?
The free recall repair still applies. Recall eligibility follows the VIN, not the first owner. Kzrv mailed owner letters on August 3, 2021, but a used RV owner can miss that notice. Check your VIN, then call a franchised Kzrv dealer if your RV is included.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V426000 |
|---|---|
| Kzrv customer service | 1-800-768-4016 |
| NHTSA recall # | 21V426 |
| NHTSA recall # (full) | 21V426000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Misc. Document (PDF)
- Download Owner Notification Letter (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 →