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The Scooter Parts Registry

EPA engine family

Engine family 8VCOX.150AAA

If this code is printed on your emission label, this is your machine's federal record: sold under Vicoo Industry, Inc., with an engine built by Taizhou Jinglong Automatic Co., Ltd, certified as ATVs.

Displacement
—
Model years
2008
Models certified
20
Certificates
1

What this record says

Sold in the US by
Vicoo Industry, Inc.
Vehicle category
ATVA-Meet EPA & ARB ATV Definition
Certificate numbers
8VCOX.150AAA-002

What the number itself says

Reading 8VCOX.150AAA left to right: 8 is the model-year letter for 2008, VCO is the three-character code the EPA assigned to Vicoo Industry as certificate holder, X marks an off-road certification, .150 is the displacement in litres, so 150cc and AAA is Vicoo Industry'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 test vehicle Vicoo Industry submitted for this family (model AIM-EX ATA 150-A) carried engine code 152QMI. In the Chinese engine-model convention that reads as one cylinder with a nominal 52 mm bore, QMI series.

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 5.2 kW (about 7 hp) at 7,000 rpm, driving through an automatic.

Engine code on test vehicle
152QMI
Nominal bore (from the code)
52 mm
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
5.2 kW (≈7 hp)
Rated speed
7,000 rpm
Transmission
automatic
Sales area
50S
Vehicle built by
Zhejiang Taotao Industry Co., Ltd.
Test vehicle model
AIM-EX ATA 150-A

Filing history and where it was sold

Vicoo Industry filed one certificate under this family, for model year 2008, sold as 50-state, California included.

The vehicle itself is recorded as built by Zhejiang Taotao Industry Co., Ltd. in China, while the engine came from Taizhou Jinglong Automatic Co., Ltd. Chassis parts and engine parts therefore have different origins.

Certified emission levels: CO 8.7, HC 0.31, NOx 0.64 g/km.

Other records carrying the same engine code

Vicoo Industry certified an engine with this code under one other family number — the same engine filed again in another year, or in an off-road and a street version:

  • 9VCOX.150AAA (2009)

A shared code from the same factory is a strong search lead. From a different factory it is as often a naming coincidence. Either way it narrows the search; it does not settle it — measure before you buy.

Models certified under 8VCOX.150AAA

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.

AIM-EX ATA110-A · AIM-EX ATA110-B · AIM-EX ATA110-C · AIM-EX ATA110-D · AIM-EX ATA110-E · AIM-EX ATA110-F · AIM-EX ATA110-F1 · AIM-EX ATA110-G · AIM-EX ATA110-H · AIM-EX ATA110-H2 · AIM-EX ATA110-H3 · AIM-EX ATA110-H4 · AIM-EX ATA110-K · AIM-EX ATA110-T · AIM-EX ATA150-A · AIM-EX ATA150-B · AIM-EX ATA150-C · AIM-EX ATA150-D · AIM-EX ATA150-E · AIM-EX ATA150-F

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.