192EGX120K1QX Throttle Control for Rolair GD4000PV5H Compressors This listing is for a throttle control valve that connects to the GX120 engine of a gas-powered Rolair GD4000PV5H air compressor. This is an OEM part directly from Rolair. This part is designed to fit the GD4000PV5H exactly, but it may fit other models of compressors that use Honda's GX120 engine. Please refer to our pictures with measurements if you are unsure this part will fit your compressor. Features and Specifications: Designed to Fit Rolair's GD4000PV5H Compressor Works with Honda GX120 Engines Hose Barb Designed to Fit 1/4" Hose Steel Mounting Bracket Brass Body