LASCO 04-9166 Fluid master Long Shank Replacement Ballcock Assembly for Kohler OEM 75422. Long shank ballcock assembly. Fluid master toilet tank ballcock fits Kohler. Includes all necessary installation parts . Easy installation. OEM replacement part number 75422. LASCO, Lasso Supply Company Inc., The Preferred Brand! Service, Selection and Support! Larsen Supply Company is 3rd Generation, Family owned and operated for over 80 years. LASCO packaging includes helpful how to instructions and related project item information. LASCO has the largest retail plumbing line in the industry today with over 7000 packaged and 16,000 bulk SKU"s. Visit our online web site catalog for one of the most complete product listing in the industry.