Engine family TSDEX.124ATA

What this record says

Sold in the US by

Sundance Gs LLC

Engine built by

Chongqing Dinggong Electromechanical Co. Ltd.

Vehicle category

All Terrain Vehicle

Certificate numbers

TSDEX.124ATA-001

What the number itself says

Reading TSDEX.124ATA left to right: T is the model-year letter for 2026, SDE is the three-character code the EPA assigned to Sundance Gs as certificate holder, X marks an off-road certification, .124 is the displacement in litres, so 124cc and ATA is Sundance Gs' 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 Sundance Gs submitted for this family (model FR-ATV125A) carried engine code 154FMI. In the Chinese engine-model convention that reads as one cylinder with a nominal 54 mm bore, FMI series.

The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor. No catalytic converter is listed.

Rated power on the record is 5 kW (about 7 hp) at 8,000 rpm, driving through an automatic.

Engine code on test vehicle

154FMI

Nominal bore (from the code)

54 mm

Cylinders / valves

1 · 2 per cylinder

Cycle

four-stroke

Fuel delivery

carburettor

Oxygen sensor

no

Engine control

other

Catalytic converter

none listed

Rated power

5 kW (≈7 hp)

Rated speed

8,000 rpm

Transmission

automatic

Sales area

49S

Vehicle built by

Jinhua Funrun Vehicle Technology Co.,Ltd.

Test vehicle model

FR-ATV125A

Filing history and where it was sold

Sundance Gs filed one certificate under this family, for model year 2026, sold as 49-state (not certified for sale in California).

The vehicle itself is recorded as built by Jinhua Funrun Vehicle Technology Co.,Ltd. in China, while the engine came from Chongqing Dinggong Electromechanical Co. Ltd. Chassis parts and engine parts therefore have different origins.

Certified emission levels: CO 9, HC+NOx 1.0 g/km.

Other records carrying the same engine code

Sundance Gs certified an engine with this code under 3 other family numbers — the same engine filed again in another year, or in an off-road and a street version:

• PSDEX.124ATA (2023)
• RSDEX.124ATA (2024)
• SSDEX.124ATA (2025)

Other certificate holders whose test vehicle carried the same engine code (10 of 170 shown):

• Ace Powersports Inc.TACEX.124JYA2026 · different engine factory
• Ace Powersports Inc.SACEX.124JYA2025 · different engine factory
• Ace Powersports Inc.RACEX.124JYA2024 · different engine factory
• Ace Powersports Inc.PACEX.124JYA2023 · different engine factory
• Ace Powersports Inc.NACEX.124JYA2022 · different engine factory
• Ace Powersports Inc.MACEX.124JYA2021 · different engine factory
• Ace Powersports Inc.LACEX.124JYA2020 · different engine factory
• Ace Powersports Inc.KACEX.124JYA2019 · different engine factory
• Apollo Motorsports Usa, Inc.LAPSX.124VA12020 · different engine factory
• Apollo Motorsports Usa, Inc.LAPSX.124BLC2020 · different engine factory

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 TSDEX.124ATA

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.

FR-ATV125A · FR110GK-1 · FR120ATV-UT-1 · FR125ATV-SP-1 · FR125ATV-SP-2 · FR125ATV-UT-1 · FR125GK-1 · FR125GK-2 · FR125JP · SA110S-1 · SA110S-2 · SA110U-1 · SA125S-4 · SA125U-2 · UA125U-1