EPA engine family
Engine family 7WNGX.250AM5
If this code is printed on your emission label, this is your machine's federal record: sold under Wangliusa, Inc., with an engine built by Yongkang Wangli Hardware Manufactory Co., Ltd, certified as ATVs.
- Displacement
- —
- Model years
- 2007
- Models certified
- 24
- Certificates
- 1
What this record says
- Sold in the US by
- Wangliusa, Inc.
- Engine built by
- Yongkang Wangli Hardware Manufactory Co., Ltd.
- Vehicle category
- ATVA-Meet EPA & ARB ATV Definition
- Certificate numbers
- 7WNGX.250AM5-003
What the number itself says
Reading 7WNGX.250AM5 left to right: 7 is the model-year letter for 2007, WNG is the three-character code the EPA assigned to Wangliusa as certificate holder, X marks an off-road certification, .250 is the displacement in litres, so 250cc and AM5 is Wangliusa's own sequence for that year. Nothing in the number names the factory — that comes from the certificate itself.
The engine, as described on the certificate
The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor, run by an ignition control module (CDI-type ignition). There is a catalytic converter in the exhaust, recorded as "TWC, single bed, open loop". The head carries a pulse secondary-air (PAIR) valve.
Rated power on the record is 11 kW (about 15 hp) at 6,500 rpm, driving through a 5-speed manual gearbox.
- Cylinders / valves
- 1 · 2 per cylinder
- Cycle
- four-stroke
- Fuel delivery
- carburettor
- Oxygen sensor
- no
- Engine control
- ICM
- Catalytic converter
- TWC, single bed, open loop
- Air injection
- PAIR
- Rated power
- 11 kW (≈15 hp)
- Rated speed
- 6,500 rpm
- Transmission
- 5-speed manual gearbox
- Sales area
- 50S
- Vehicle built by
- Yongkang Wangli Hardware Manufactory Co., Ltd.
- Test vehicle model
- WL-ATV250WA
Filing history and where it was sold
Wangliusa filed one certificate under this family, for model year 2007, sold as 50-state, California included.
The vehicle itself is recorded as built by the same company, Yongkang Wangli Hardware Manufactory Co., Ltd. in China — engine and chassis from one source.
Certified emission levels: CO 4.6, HC 0.32, NOx 0.16 g/km.
Models certified under 7WNGX.250AM5
Every model designation the importer listed on this certificate. If your machine's model name appears here, this is the right record — even if the name on the bodywork is slightly different.
WL-ATV200WA · WL-ATV200WB · WL-ATV200WC · WL-ATV200WD · WL-ATV200WE · WL-ATV200WF · WL-ATV200WG · WL-ATV200WH · WL-ATV250WA · WL-ATV250WB · WL-ATV250WC · WL-ATV250WD · WL-ATV250WE · WL-ATV250WF · WL-ATV250WG · WL-ATV250WH · WL-ATV260WA · WL-ATV260WB · WL-ATV260WC · WL-ATV260WD · WL-ATV260WE · WL-ATV260WF · WL-ATV260WG · WL-ATV260WH
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. Full provenance and method.