Who makes Wansen Motor Inc. engines?

Wansen Motor Inc. engines were built by 3 different Chinese factories across 2019–2027: Chongqing Loncin, Taizhou Handa Engine Science Co., Ltd., Taizhou Xinba Power Manufacturing Co., Ltd.. Which one built yours depends on the model year.

Will parts from another brand fit my Wansen Motor Inc.?

A shared factory and engine size makes another brand a strong candidate, but it does not prove the part numbers match. These machines are assembled from multiple component suppliers, so measure the part you have before ordering a replacement.

US importer / certificate holder

Who actually makes Wansen Motor Inc.?

Wansen Motor Inc. did not use one factory. Across 2019–2027 the engines came from 3 different Chinese manufacturers — so the answer depends on your model year.

Model years: 2019–2027
Engine factories: 3
Engine families: 14
Models certified: 67

What the Wansen Motor filings say about the engines

Wansen Motor's filings mix carburettors and fuel injection: 10 rows carburetted, 4 injected. The first injected family appears in 2026; in 2027 the split was 0 carburetted to 2 injected. Check which you have before buying anything on the fuel side.

The engine codes on Wansen Motor's test vehicles —4 distinct across the filings — are led by 1P39QMB, 1P61QMK, 1P63QMK and 1P72MM. The code is stamped on the crankcase and is a better search term than the badge.

7 of the 14 filings are 50-state (California-legal); the other 7 were 49-state only.

Rated power across the range runs from 1.8 kW to 16.4 kW (about 2 to 22 hp).

The vehicle builders named are Zhejiang Shanqi Tianying Vehicle Industry Co., Ltd. and Zhejiang Tianying Locomotive Co., Ltd. — the chassis and the engine do not always share a source.

Each figure is read straight off the EPA certificate rows; the per-family pages below carry the full breakdown for every engine family.

The factory changed. Here is when.

Engine manufacturer by model year, from the certification record
Model year	Engine factory on the certificate
2027	Chongqing Loncin · Taizhou Handa Engine Science Co., Ltd.
2026	Chongqing Loncin · Taizhou Handa Engine Science Co., Ltd.
2023	Taizhou Handa Engine Science Co., Ltd. · Taizhou Xinba Power Manufacturing Co., Ltd.
2022	Taizhou Handa Engine Science Co., Ltd. · Taizhou Xinba Power Manufacturing Co., Ltd.
2021	Taizhou Handa Engine Science Co., Ltd. · Taizhou Xinba Power Manufacturing Co., Ltd.
2020	Taizhou Handa Engine Science Co., Ltd. · Taizhou Xinba Power Manufacturing Co., Ltd.
2019	Taizhou Handa Engine Science Co., Ltd. · Taizhou Xinba Power Manufacturing Co., Ltd.

Other American badges on the same engines

These machines came out of the same factory at the same engine size. If Wansen Motor Inc. parts are hard to find, these are where to look next — after measuring.

Engine families certified to Wansen Motor Inc.

The engine family number is printed on the emission label on your machine. Match yours here to pin down the exact record.

Engine families with 15 or more certified models
Engine family	Years	Displacement	Models
NWMIC.049TYA	2022	49.3cc	15
PWMIC.049TYA	2023	49.3cc	15
TWMIC.180TY1	2026	180.4cc	20
VWMIC.180TY1	2027	180.4cc	20

4 of this brand's 14 engine families have 15 or more certified models and carry their own page. The other 10 are covered by the model list below.

Model names certified under Wansen Motor Inc.

67 distinct model designations appear on this brand's certificates. Yours should be among them — importers sometimes market a machine under a different name than the one they certified.

Adonis · Defender · Discovery · EXPRESS-50 · Excursion · Falcon · Falcon R · RAZOR-150 · ROMEO-200 · ROMEO-50 · SUPER-50 · Super · Super R · TY200SRT · TY200STT · TY200SVT · TY200T-10B · TY200T-11B · TY200T-12B · TY200T-13B · TY200T-14B · TY200T-16B · TY200T-17B · TY200T-18B · TY200T-19B · TY200T-20E · TY200T-21E · TY200T-22E · TY200T-2A · TY200T-3A · TY200T-4A · TY200T-5A · TY200T-6A · TY200T-7A · TY200T-8A · TY200T-A · TY250T-10D · TY250T-11D · TY250T-12D · TY250T-13D · TY250T-14D · TY250T-15D · TY250T-16D · TY250T-6C · TY250T-7C · TY250T-8C · TY250T-9C · TY250T-C · TY50QT-5 · TY50QT-6 · TY50QT-7 · TY50QT-8 · TY50QT-9 · TY50QT-A · TY50QT-B · TY50QT-C · TY50QT-D · TY50QT-E · TY50QT-F · TY50QT-G · TY50QT-K · TY50QT-L · TY50SRT · TY50STT · TY50SVT · Vestalian · Wasp

Related in the registry

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. Based on 14 China-engine certificate rows filed by Wansen Motor Inc.. Full provenance and method.