For gas generators, it's an OEM standard huayi generator manual carburetor compatible with Honda GX390 GX340 powered generators and clones. The 27mm carb is w/ 30.5mm air intake and w/ 52mm center to center mounting holes.
For HUAYI SKU P27-3D P27-1D, fits for Honda clone generators powered by GX340 GX390 13hp 15hp 339cc 389cc 420cc 459cc 439cc as OEM carburetor such as Generac 0J2451 GP5500 Predator 9000 Champion 7000 and many others etc.
For Champion gas only models 41030 41311 41115 41119 41135 41351 41570 41534 41553 100153 100165 100155 41430 41537 100219 41533 41302 100247 100340 100452 100109 100462 100248 100538 100704 100693 100463 100219 100496 100814, for Powerhorse 750140 750141 750142 102222, for Firman P05700 ECO9000E Westinghouse WH10000 Wh7500 Wh7500e.
The kit includes a generator carburetor, a fuel line hose with a protecting pipe, or a supporter in OEM standard. The throttle spring kit match the carburetor exactly. Please note it's for generators and this is a manual model, not an automatic model carb for generators.