This stainless steel petcock features 16mmx1.5mm threaded nut and 22mm hexagonal design, ensuring precise compatibility for GX390 equipment Optimize engine with this heavy duty fuels switcher designed to withstand high temperature environments, featuring precise thread alignment for leak proof operate Engineered with 90degree ON/OFF rotation and resistant construction, the switching delivers reliability fuels flows control while matching OEM specifications for seamless installation in gasolines powered machinery Compatible for EB3500X EB3500XK1 EB3800X EB5000X EB5000XK1 EB5000XK2 EB6500SX EB6500X EM3500SX EM3500SXK1 EM3500X EM3800SX EM5000SX EM5000SXK1 EM5000SXK2 EM5000X generators Suitable for 5KW 5.5KW 6KW 6.5KW 208CC 389cc 420cc 3250/3750 Watt GP3250 GP5000 GP5500 GP6000 GP6000E GP6500 GP6500E GP7500W GP7500E GP8000E H5500 H6500 H7500 HW5500E HW6500 HW7500E XT8000E Generator 209417GS, Manufacturer: amangul