Discharge Port Thread: 3/8 FPT. Shaft Diameter: 1 ID Gas Flange. Dimensions: 8.8" x 9.7" 6.5. Lubrication: fill the crankcase to dot on oil gauge window per specifications with Nondtergent SAE 30W oil. Change the oil after a 40 break-in period, then every three (3) months or 500 hour intervals thereafter.The item "GENERAL PUMP EZ3035 PUMP 3.5 GPM 3000 PSI FITS 1 GAS ENGINE SHAFT" is in sale since Wednesday, January 31, 2018. This item is in the category "Business & Industrial\Cleaning & Janitorial Supplies\Pressure Washers, Parts & Accessories\Pressure Washer Parts & Accessories\Other Pressure Washer Parts & Accessories". The seller is "yodersdiscount" and is located in London, Ohio. This item can be shipped to United States.