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The Scooter Parts Registry

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.
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.