Page 31 - MerCruiser_JMLCatalog_Flipbook
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MerCruiser
DRIVE SHAFT HOUSING BEARINGS
No. 21510 No. 21511 No. 21520 No. 21525 No. 21540 No. 21560
OEM: 31-61100A1 OEM: 31-32575T1 OEM: 31-35988A12 OEM: 31-86763A2 OEM: 31-35990A1 OEM: 31-32573A1
(1-15/16 O.D.) (1-25/32 O.D.) No. 21522 No. 21550 No. 21630
OEM: 31-30894A5 OEM: 31-66818A1 OEM: 31-38356A1
Drive Shaft - Upper U-Joint Shaft Drive Shaft - Lower
DRIVE SHAFT HOUSING BEARINGS APPLICATIONS
Serial No. Bearing Assy. Bearing Assy. Bearing- Upper
Model Gear Ratio Year
Range Drive Gear Driven Gear Cover
I All 1963 1534570-1684187 N.L.A. 21560 21511
IA/IB/IC & EZ Shift All 1964-1966 1684188-2065186 21520 21540 21511
120/140 1.98 1967 2062141-2187468 21520 21540 21540
120/140 1.98 1967-1971 2187469-3134193 21520 21540 21511
120/140 1.98 1971-1982 3213658-6225576 21520 21540 21510
470/485 1.84 1976-1982 4208730-6225575 21520 21540 21540
160 1.68 1967 2065190-2182197 21520 21540 21511
160 1.68 1967-1971 2182198-3134193 21520 21540 21510
165 1.65 1971-1981 3213658 & Up 21520 21540 21510
888 1.50 1974 & Up 3784375 & Up 21520 21540 21510
225-S 1.50 1974 3856268-4200499 21520 21540 21510
233 1.32 1975-1977 4200500 & Up - 21550 21510
898/228 1.65 1977-1982 4782330-6225576 21520 21540 21510
250 1.32 1977 4791300-4898729 - 21550 21510
260 1.50 1978-1982 4898730-6225576 21520 21540 21510
R/MR/Alpha One 1.98/1.84/1.65/1.50 1984-1990 6225577 & Up 21520 21540 21510
R/MR/Alpha One 1.50 1984-1990 6225577 & Up 21520 21560 21510
R/MR/Alpha One 1.32 1984-1990 6225577 & Up - 21550 21510
Alpha One SS 1.32 1986-1989 0A545004 & Up - 21550 21510
Alpha One SS 1.50 1986-1989 0A545004 & Up - 21560 21510
Alpha One Gen II 2.40/1.98/1.84/1.65 1991-1995 0D469859-0F679999 21520 21540 21510
Alpha One Gen II 1.50 1991-1995 0D469859-0F679999 21520 21560 21510
Alpha One Gen II 2.40/1.94/1.81/1.62 1996-1997 0F680000-0K999999 21520 21540 21511
Alpha One Gen II 1.47 1996-1997 0F680000-0K999999 21520 21560 21511
Alpha One Gen II 2.40/2.00/1.94/1.81/1.62 1998 & Up 0L100040 & Up 21522 21540 21511
Alpha One Gen II 1.47 1998 & Up 0L100040 & Up 21522 21560 21511
Bravo I/II/III All 1988 & Up 0B664190-0F345867 21525 - -
Blackhawk All 1994-1995 0F186717 & Up 21525 - -
III All 1968-1972 2373127-3002613 - - N/A
215H All 1970 2782203-2909034 - N.L.A. N/A
TR/TRS All 1973-1993 3377316 & Up - - N/A
TR/TRS All 1973-1993 3377316 & Up 21630 - N/A
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