Recall 20V718 affects 190 2021 Thor Motor Coach Four Winds motorhomes for a stove gas leak. Free repair at any franchised Thor Motor Coach dealer.
Thor Motor Coach is recalling 190 2021 Four Winds motorhomes because an overtightened saddle valve securing bolt on the Dometic 3 burner cooking stove can damage the o-ring seal and start a continuous gas leak. A gas leak can increase the risk of a fire, and Thor Motor Coach dealers will complete the recall repair free of charge.
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What's wrong?
The Dometic 3 burner cooking stove in a 2021 Thor Motor Coach Four Winds motorhome uses gas valves to control the fuel feeding the burners. A saddle valve and its o-ring seal help keep that gas contained until a burner is intentionally opened and lit. That seal has to stay intact because the stove is inside the living space of the motorhome.
On affected motorhomes, the securing bolt for the saddle valve can be overtightened. Too much clamp force can damage the o-ring seal, leaving a path for gas to escape continuously instead of staying inside the valve assembly. Dometic had not identified one final cause in the filing, but the recalled stoves are the units tied to the leak concern.
The warning sign is the smell of gas fumes near the stove or inside the coach. If you smell gas, treat it as evidence of the identified leak and avoid using the stove until the recall repair is complete.
Who's affected?
| 2021 Thor Motor Coach Four Winds | Oven/stove/cooktop |
|---|---|
| Units affected | 190 |
| Field incidents | NHTSA has logged 49 field incidents to date. |
Not every 2021 Thor Motor Coach Four Winds motorhome is on the list. Check your VIN to confirm whether your specific motorhome is included.
What's the safety risk?
A gas leak increases the risk of a fire. The smell of gas fumes is the warning sign named for this leak, so treat that odor as a reason to stop and arrange service. Repair is free at any franchised Thor Motor Coach dealer.
What should I do?
- Check your VIN to confirm your 2021 Thor Motor Coach Four Winds is included in this recall.
- Contact a franchised Thor Motor Coach dealer to schedule the free Dometic 3 burner stove remedy kit that addresses the gas leak risk.
- Bring the recall notice if Thor Motor Coach mailed one. If not, reference recall number 20V718 when you call.
- Avoid using the stove until the dealer repair is complete.
What happens at the repair
At the dealer, a Thor Motor Coach technician installs the remedy kit for the Dometic 3 burner cooking stove. The kit includes gaskets, washers, thread locker bolts, and two round orange labels, addressing the saddle valve seal issue tied to the gas leak. Parts and labor are covered under recall 20V718. If you already paid for this repair, Thor Motor Coach says reimbursement is provided through the normal warranty claim process. Ask the service desk or Thor Motor Coach customer service how to submit the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 19, 2020 | NHTSA published the recall |
|---|---|
| January 14, 2021 | Owner notification mailed |
| January 18, 2021 | Dealer notification began |
| January 18, 2021 | Dealer notification ended |
| January 18, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V718?
Recall 20V718 covers 190 2021 Thor Motor Coach Four Winds motorhomes equipped with Dometic 3-burner cooking stoves. The stove saddle valve securing bolt was overtightened, damaging the o-ring seal and causing a continuous gas leak that increases fire risk. Dealers install the remedy kit for free.
What should I do if my 2021 Thor Motor Coach Four Winds is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 20V718. If it is, contact a franchised Thor Motor Coach dealer to schedule the stove remedy kit installation. Reference recall number 20V718 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost. Thor Motor Coach dealers will install the remedy kit, including gaskets, washers, thread locker bolts, and 2 round orange labels, free of charge.
What is the safety risk?
The safety risk is fire from a continuous gas leak at the stove. Recall 20V718 involves the saddle valve securing bolt on the Dometic stove, which damaged the o-ring seal. If your VIN is included, schedule the free dealer repair.
What if I bought my Thor Motor Coach Four Winds used?
The free recall repair still applies. Federal recall law requires the manufacturer to honor the recall regardless of ownership history. Check your VIN to confirm whether your specific 2021 Four Winds is included, then call a franchised Thor Motor Coach dealer with recall number 20V718.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V718000 |
|---|---|
| Thor Motor Coach customer service | 1-877-855-2867 |
| NHTSA recall # | 20V718 |
| NHTSA recall # (full) | 20V718000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 24, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →