EPA engine family
Engine family 7SSGX.125DM3
If this code is printed on your emission label, this is your machine's federal record: sold under Seaseng Inc., with an engine built by Chongqing Loncin, certified as off-road machines.
- Displacement
- —
- Model years
- 2007
- Models certified
- 15
- Certificates
- 1
What this record says
- Sold in the US by
- Seaseng Inc.
- Engine built by
- Chongqing Loncin
- Vehicle category
- Off-Road Motorcycle
- Certificate numbers
- 7SSGX.125DM3-001
What the number itself says
Reading 7SSGX.125DM3 left to right: 7 is the model-year letter for 2007, SSG is the three-character code the EPA assigned to Seaseng as certificate holder, X marks an off-road certification, .125 is the displacement in litres, so 125cc and DM3 is Seaseng'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 5.6 kW (about 8 hp) at 7,500 rpm, driving through a 3-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
- 5.6 kW (≈8 hp)
- Rated speed
- 7,500 rpm
- Transmission
- 3-speed manual gearbox
- Sales area
- 50S
- Vehicle built by
- Zhejiang Chisheng Industry & Trading Co., Ltd.
- Test vehicle model
- SEA125ATV
Filing history and where it was sold
Seaseng filed one certificate under this family, for model year 2007, sold as 50-state, California included.
The vehicle itself is recorded as built by Zhejiang Chisheng Industry & Trading Co., Ltd. in China, while the engine came from Chongqing Loncin. Chassis parts and engine parts therefore have different origins.
Certified emission levels: CO 3.2, HC 0.24, NOx 0.23 g/km.
Models certified under 7SSGX.125DM3
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.
OZ110GY · OZ125GY · OZ90GY · SEA110GY · SEA125GY · SEA90GY · SVX110GY · SVX125GY · SVX90GY · XT110GY · XT125GY · XT90GY · ZX110GY · ZX125GY · ZX90GY
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.