1[Oem Number] The reference part numbers are G099236 99236GS 99236 099236, please double check the part number of your product. 2[Applicable Model] Replacement for Generac 9777?0, 9777?1, 9777?2, 9777?3, 9777?4 4000xl, 0042761 GH220, 0046732 G26, 0052331 GH410 generator. 3[Durable Material] The oil pressure switch is made of excellent material for strong strength, can stand 1.4bar pressure, with stable performance. 4[Replacement Part] This oil pressure switch is a good and perfect substitute, you can directly replace worn or damaged ones for time saving. 5[1/8IN Pipe Thread] The generator oil pressure switch has 1/8in pipe thread, which is easy to connect and install, and ensures stable structure.