Titan 762-058 Seat O-Ring, PTFE is same as Titan 0509582.
Fits the following models: Impact 340, Impact 400, Impact 440, Impact 540, Impact 640, Impact 740, Impact 840, 330 Airless Sprayer, 340 Airless Sprayer International Model, 440i Airless Sprayer, 440ix Airless Sprayer, 440xc Airless Sprayer, 540ix Airless Sprayer, 550xc Airless Sprayer, 640i Airless Sprayer, 640ix Airless Sprayer, 660xc Airless Sprayer, 690gxc Airless Sprayer, 740i Airless Sprayer, 740ix Digital Airless Sprayer, 840i Airless Sprayer, 840ix Airless Sprayer, 840ix Digital Airless Sprayer, 1100xc Airless Sprayer, 1140i Airless Sprayer, 1140ix Airless Sprayer, 1140ix Digital Airless Sprayer, Performer 640i Airless Sprayer, Performer 1140ix Airless Sprayer and many more.