Which LuYuan, Inc. models have a Chinese-built engine?

28 of the 33 US certificate filings on record for LuYuan, Inc. name an engine manufacturer in China, across 2013–2026: Yongkang Luyuan Industrial & Trading Co., Ltd, Zhejiang Xingyue. The rest of the range is built elsewhere and is not covered by this registry.

Will parts from another brand fit my LuYuan, Inc.?

A shared factory and engine size makes another brand a strong candidate, but it does not prove the part numbers match. These machines are assembled from multiple component suppliers, so measure the part you have before ordering a replacement.

US certificate holder — partial coverage

Which LuYuan models have a Chinese-built engine?

28 of the 33 certificate filings on record for LuYuan, Inc. name a China-built engine. This page covers only those, and says nothing about the rest of the range.

Model years: 2013–2026
Engine factories: 2
Engine families: 27
Coverage: 28 of 33 filings

What the LuYuan filings say about the engines

Every LuYuan filing on record is carburetted — 28 certificate rows, 2013 to 2026, and not one fuel-injected engine among them.

The engine codes on LuYuan's test vehicles —2 distinct across the filings — are led by XY139F-7 and 139F-7. The code is stamped on the crankcase and is a better search term than the badge.

1 of the 28 filings are 50-state (California-legal); the other 27 were 49-state only.

Rated power across the range runs from 0.9 kW to 5.2 kW (about 1 to 7 hp).

The vehicle builders named are YONGKANG LUYUAN INDUSTRIAL & TRADING CO., LTD and YONGKANG LUYUAN INDUSTRIAL & TRADING CO., LTD — 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.

Engine manufacturer by model year, from the certification record
Model year	Engine factory on the certificate
2026	Zhejiang Xingyue
2025	Zhejiang Xingyue
2024	Zhejiang Xingyue
2023	Zhejiang Xingyue
2022	Zhejiang Xingyue
2021	Zhejiang Xingyue
2020	Zhejiang Xingyue
2019	Zhejiang Xingyue
2018	Zhejiang Xingyue
2017	Yongkang Luyuan Industrial & Trading Co., Ltd · Zhejiang Xingyue
2016	Yongkang Luyuan Industrial & Trading Co., Ltd · Zhejiang Xingyue
2015	Yongkang Luyuan Industrial & Trading Co., Ltd · Zhejiang Xingyue
2014	Yongkang Luyuan Industrial & Trading Co., Ltd · Zhejiang Xingyue
2013	Yongkang Luyuan Industrial & Trading Co., Ltd

Other American badges on the same engines

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

Zhejiang Xingyue · 49-50ccEbot, Inc, Vorblex Home Inc, Xingyue Usa, Inc

Model names certified under LuYuan, Inc.

36 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.

LY-ATV-40A · LY-ATV-40B · LY-ATV-40C · LY-ATV-40D · LY-ATV-40E · LY-ATV-40F · LY-ATV-40G · LY-ATV-40H · LY-ATV-40I · LY-ATV-40J · LY-ATV-40K · LY-ATV-40L · LY-ATV-40M · LY-ATV-40N · LY-ATV-MOTO110A · LY-ATV-MOTO110B · LY-ATV-MOTO110C · LY-ATV-MOTO110D · LY-ATV-MOTO110E · LY-ATV-MOTO110F · LY-ATV-MOTO110G · LY-ATV-MOTO110H · LY-ATV-MOTO110I · LY-ATV-MOTO110J · LY40MT-1 · LY40MT-10 · LY40MT-11 · LY40MT-12 · LY40MT-2 · LY40MT-3 · LY40MT-4 · LY40MT-5 · LY40MT-6 · LY40MT-7 · LY40MT-8 · LY40MT-9

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 28 China-engine rows among 33 certificate rows filed by LuYuan, Inc.. Non-China filings are out of scope. Full provenance and method.