VALVE SPRING COMPRESSOR*Scroll right to see all columnsE p> Maintenance of intake and exhaust valves of 4 stroke engines (removal and installation of valve springs). Four sizes of attachments (16. 5, 20, 24, 28) are available for most car models. The attachment can be replaced with one touch operation, and the wide opening allows smooth removal of the valve cotter. Spare parts No. Description QTY. D1 D2 MCVU A16 Attachment 16. 5 1 17 19 50 MCVU A20 Attachment 20 1 20 22 50