3320,3340, from serial # 5801 and up
4320,4340, from serial # 2000 and up
Replaces Zetor part #: 53420910, 54420920,72454140, 78420903, 78420910
Application: Refer to parts book, 10050 (Mechanical Shuttle), 11050 (Mechanical Shuttle), 3320, 3340, 4320, 4340, 5320, 5340, 6320, 6340, 6421, 6441, 7020, 7040, 7320, 7340, 7421, 7441, 8020, 8040, 8421, 8441, 9020, 9040, 9050 (Mechanical Shuttle)