Chinese engine factory
Taizhou Handa Engine Science Co., Ltd.: every American brand built here
Federal certification records name Taizhou Handa Engine Science Co., Ltd. as the engine manufacturer behind 3 American powersports brands, covering ATVs, street-legal scooters and motorcycles. Here is the full list, model year by model year.
- US brands
- 3
- Model years
- 2019–2027
- Engine families
- 21
- Displacement
- 169–180.4cc
American brands supplied by Taizhou Handa Engine Science Co., Ltd.
| US brand (certificate holder) | Model years | Engine families | Models certified |
|---|---|---|---|
| Mars Carts Inc. | 2021–2026 | 30 | 56 |
| Qj North America Inc. | 2020–2026 | 45 | 62 |
| Wansen Motor Inc. | 2019–2027 | 14 | 67 |
Which of those machines are actually comparable
A shared factory alone is a weak signal — Taizhou Handa Engine Science Co., Ltd. builds engines across 169–180.4cc. Grouping by engine size narrows it to machines genuinely worth comparing.
How this factory appears in the raw federal record
Each importer types the factory name into the certification form by hand, so one factory arrives in the data as many different companies. These 3 strings were reconciled into the single entry above.
- Taizhou Handa Engine Science Co., Ltd.
- Taizhou Handa Engine Science Co.,Ltd
- Taizhou Handa Engine Science Co.,Ltd.
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Source. US EPA annual certification data — EPA Certified Highway Motorcycle Test Results, MY2006-present; EPA Certified Off-Road Motorcycle / ATV / UTV / Rec Vehicle, MY2006-present. Retrieved 2026-09-07. This page describes 21 certificate records naming Taizhou Handa Engine Science Co., Ltd.. Full provenance and method.