S622
Sailun S622; UTQG, warranty, prices, and OEM vehicle fitments.
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NHTSA-reported issues for sailun S622
Top issue category: Tires (General)
Most reported: Tires (General) (18) · Tread / Belt (7) · Bead (1)
What owners described
Tread or belt separation appears in 25% of these reports; about 1.9× as often as across all tire complaints. Percentages are shares of the 20 reports covering every model year of the Sailun that include a written account; a single report can describe more than one problem, so they do not total 100%.
| Reported problem | This subject | All tire complaints | Relative |
|---|---|---|---|
| Tread or belt separation | 25% | 13% | 1.9× |
| Pressure-monitoring (TPMS) fault | 10% | 2% | 4.2× |
| Blowout or sudden deflation | 5% | 20% | 0.2× |
| Bubble or bulge in the tire | 5% | 6% | 0.8× |
| Cracking or dry rot | 5% | 9% | 0.5× |
Mileage at failure
9 of these reports state an odometer reading. The middle report is at 4,000 miles, with 8 in 10 falling between 1,800 and 180,000 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Sailun. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
The Tread on these tire started separating prematurely. I Purchased 4 of these at the same time and fear the others may do the same. Others using the same tire with similar manufacture dates report the same issue. Tires are being used on our Fifth Wheel Trailer but the previous page would not recognize the Vin. That vin is [XXX] Tire Size ST235/80R16S.C. 552(B)(6).
The Tread on these tire started separating prematurely. I Purchased 4 of these at the same time and fear the others may do the same. Others using the same tire with similar manufacture dates report the same issue. Tires are being used on our Fifth Wheel Trailer but the previous page would not recognize the Vin. That vin is [XXX] Tire Size ST235/80R16S.C. 552(B)(6).
The Tread on these tire started separating prematurely. I Purchased 4 of these at the same time and fear the others may do the same. Others using the same tire with similar manufacture dates report the same issue. Tires are being used on our Fifth Wheel Trailer but the previous page would not recognize the Vin. That vin is [XXX] Tire Size ST235/80R16S.C. 552(B)(6).
The VIN is from my tow vehicle, your system wouldn't take the VIN of my Fifth Wheel RV (4YDF37329J4700954) which the tire that failed is installed on. The tire in question was purchased in April of 2021 and had approximately 500 miles on it when the tread separated from the tire and became wrapped around the axle of the RV. The tire is a Sailun S637 ST235/80R16.
Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.
Specs
| Brand | Sailun |
|---|---|
| Model | S622 |
| Season | N/A |
| Type | N/A |
| UTQG treadwear | N/A |
| UTQG traction | N/A |
| UTQG temperature | N/A |
| Mileage warranty | N/A |
| Noise (dB) | N/A |
| Introduced | N/A |
Live prices
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Available sizes (0)
Size data being verified.
Sailun S622: what the numbers tell you
Manufacturer treadwear data for the S622 is not publicly listed. This is common for OEM-only or track-day tires that don't carry a US treadwear warranty. No mileage warranty is published for this tire, which is typical for performance summer and track-day rubber where the manufacturer doesn't make wear-life claims.
Cabin noise data for this tire is not published by the manufacturer. As a general tire built for the passenger segment, the S622 is positioned against direct rivals within the same category. Comparing it to a tire in a different category (e.g. summer vs all-season) makes the spec sheet misleading because the design targets are not the same.
The Sailun S622 has been part of Sailun's catalog since its introduction, and remains a current-production model.
For an apples-to-apples comparison against direct rivals, see the comparison pages linked from this tire's brand index.
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Last verified 2026-09-02.