The crankshaft seal installer allows the correct intalation of the seal to make sure its installed level to prevent wear on seal.
Applications: Paccar PX-6, 1989-2016 Cummins 4BT 3.9L, B Series 5.9L, 
ISB 5.9L 6.7L and QSB 5.9L 6.7L
Installs Factory front seal #3937111, 
#3904353 and the seal found in kit #3802820
Note: T&E #4704 is required if the seal has a wear sleeve

Barcode # 9322159047035