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The Scooter Parts Registry

US certificate holder — partial coverage

Which Tomcar Holding Company models have a Chinese-built engine?

13 of the 21 certificate filings on record for Tomcar Holding Company, LLC name a China-built engine. This page covers only those, and says nothing about the rest of the range.

Model years
2012–2022
Engine factories
2
Engine families
13
Coverage
13 of 21 filings

What the Tomcar Holding Company filings say about the engines

Tomcar Holding Company has filed only fuel-injected engines: 13 certificate rows and no carburettors at all, so a jet kit is the wrong search for any of them.

The engine codes on Tomcar Holding Company's test vehicles —2 distinct across the filings — are led by SQR472 and SQR477F. The code is stamped on the crankcase and is a better search term than the badge.

7 of the 13 filings are 50-state (California-legal); the other 6 were 49-state only.

Rated power across the range runs from 38.5 kW to 80 kW (about 52 to 107 hp).

The vehicle builders named are Tomcar Holding Company, LLC, Tomcar N.A. Distribution LLC and TOMCAR N.A. Distribution LLC — the chassis and the engine do not always share a source.

Each figure is read straight off the EPA certificate rows; the per-family pages below carry the full breakdown for every engine family.

The factory changed. Here is when.

Other American badges on the same engines

These machines came out of the same factory at the same engine size. If Tomcar Holding Company, LLC parts are hard to find, these are where to look next — after measuring.

Model names certified under Tomcar Holding Company, LLC

12 distinct model designations appear on this brand's China-engine certificates. Yours should be among them — importers sometimes market a machine under a different name than the one they certified.

TM2C · TM2R · TM3R · TM4C · TM4R · TM5C · TM5R · TM6R · TM7R · TX3 · TX4 · TX5

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. Based on the 13 China-engine rows among 21 certificate rows filed by Tomcar Holding Company, LLC. Non-China filings are out of scope. Full provenance and method.