Cylinder Kit compatible with models 842, 840, 742, P3314, 3416, 3516PR, 3818AV, 4018, PP3516, 3816, 4018, 4218 (41mm bore). Part number 530 07 18-84. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.