EPA engine family
Engine family RHSNX.540UTV
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
- 540cc
- Model years
- 2024
- Models certified
- 15
- 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
- RHSNX.540UTV-005-R01
Models certified under RHSNX.540UTV
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 X550 · Challenger MX 550S · HS550UTV-10S · HS550UTV-11S · HS550UTV-2S · HS550UTV-3S · HS550UTV-5S · HS550UTV-9S · HS550UTV-S · Remington 550S · Sector 550S · Sector 550S DX · Sector 550S EX · Sector 550S FX · Strike 550S
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.