Protector - Seal

PROTECTOR - SEAL
PART NO. 376605

Used to guide upper main bearing and seal
assembly over crankshaft shoulder. Prevents
seal lip from being cut during installation. For
22 thru 40 HP (except 1962 and later 28, 33
and 40 HP; 1976 and later 35 HP and 1977
25 HP).

Johnson Service Bulletin #591 (June 4, 1957) explains that this sleeve is needed when installing the upper journal oil seal on older FD and RD series crankshafts with a stepped journal. Later tapered crankshafts do not require the sleeve. Companion installer: 304722.