Engine family ATAOX0.15G2T

What this record says

Sold in the US by

Taotao USA Inc.

Engine built by

Zhejiang Taotao

Vehicle category

ATVB-Meeting EPA ATV Definition

Certificate numbers

ATAOX0.15G2T-004

The engine, as described on the certificate

The test vehicle Taotao USA submitted for this family (model ATK150-A) carried engine code 1P57QMS. In the Chinese engine-model convention that reads as one cylinder, horizontal (flat) cylinder, with a nominal 57 mm bore, QMS series.

The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor. 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 5.5 kW (about 7 hp) at 7,000 rpm, driving through a 2-speed automatic.

Engine code on test vehicle

1P57QMS

Nominal bore (from the code)

57 mm

Cylinders / valves

1 · 2 per cylinder

Cycle

four-stroke

Fuel delivery

carburettor

Oxygen sensor

no

Catalytic converter

TWC, single bed, open loop

Air injection

PAIR

Rated power

5.5 kW (≈7 hp)

Rated speed

7,000 rpm

Transmission

2-speed automatic

Sales area

50S

Vehicle built by

Zhejiang Taotao Industry Co., Ltd.

Test vehicle model

ATK150-A

Filing history and where it was sold

Taotao USA filed one certificate under this family, for model year 2010, sold as 50-state, California included.

The vehicle itself is recorded as built by the same company, Zhejiang Taotao Industry Co., Ltd. in China — engine and chassis from one source.

Certified emission levels: CO 8.7, HC+NOx 1.2 g/km.

Other records carrying the same engine code

Taotao USA certified an engine with this code under 9 other family numbers — the same engine filed again in another year, or in an off-road and a street version:

• 9TAOX0.15G2T (2009)
• BTAOX0.15G2T (2011)
• CTAOX0.15G2T (2012)
• DTAOX0.15G2T (2013)
• ETAOX0.15G2T (2014)
• FTAOX0.15G2T (2015)
• GTAOX0.15G2T (2016)
• HTAOX0.15G2T (2017)
• JTAOX0.15G2T (2018)

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 ATAOX0.15G2T

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.

ATK110-A · ATK110-B · ATK110-C · ATK110-D · ATK110-E · ATK110-F · ATK125-A · ATK125-B · ATK125-C · ATK125-D · ATK125-E · ATK125-F · ATK150-A · ATK150-B · ATK150-C · ATK150-D · ATK150-E · ATK150-F

Other American badges on engines from the same factory

• Zhejiang Taotao · 150cc2 American brands · 2012–2026
• Zhejiang Taotao · 49-50cc3 American brands · 2009–2025