Why ProPartsPlace? Fastest Shipping! Reasonable Prices! Great Feedback! Excellent customer service! This sale is for (1) replacement PULLEY/SHEAVE to replace Bush Hog 50074053. This pulley fits on all the 50051388 spindles. 5-1/2" od 5/8" belt pulley groove Fastest shipping!!! Disclaimer: We list model numbers and part numbers for references only. At times the same model may take different parts based on serial number breaks or manufacturers specifications. We list all the specifications on the part (size, width, length, thickness, etc.) and YOU must know what is needed on YOUR application. We canÂt possibly make it more known as to what you are receiving when you purchase.