EPA engine family
Engine family SHSNX.454USV
If this code is printed on your emission label, this is your machine's federal record: sold under Hisun Motors Corp., U.S.A., with an engine built by Chongqing Huansong, certified as ATVs and UTVs and side-by-sides.
- Displacement
- —
- Model years
- 2025
- Models certified
- 17
- Certificates
- 1
What this record says
- Sold in the US by
- Hisun Motors Corp., U.S.A.
- Engine built by
- Chongqing Huansong
- Vehicle category
- ATVB & UTV - EPA only
- Certificate numbers
- SHSNX.454USV-003
Models certified under SHSNX.454USV
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.
Axis 400 · Axis 450 · Back40 400 · Back40 450 · Bad Boy 450 · HS400UTV-2 · HS400UTV-3 · HS400UTV-4 · HS400UTV-5 · HS450UTV · RK Performance 400 · RK Performance 450 · Sector 450 · Vector 400 · Vector 450 · Viper 400 · Viper 450
Other American badges on engines from the same factory
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.