Replaces: 1623-815822A53 For: Ratios 1.47, 1.62, 1.81 & 1.94 Fits: Gen II (1998 & up) 0L 100040 & up Serial number: OD469859 and up.
Replaces: 1623-8951A27, 1623-8951A37 For: MR/ALPHA Style Bore size 3.2635-3.2650. Includes tapered roller bearing for non-tractor 14/28 or 17/28 gears.
Replaces: 1547-861063A10 For: Alpha Gen II (1991 & UP) for gear ratios 1.62:1, 1.65:1, 2.0:1. (24/24) Engine: 4.3LH/4.3LEFI/5.0L
Replaces: Mercruiser: 1623-8951A43, 5-5010147CP, 623-8951A43, 623-8951R43, 8951A23; Sierra: 18-2443 Serial number: 6225577 & up For: R/MR/ALPHA
Replaces: 1547-861063A8 For: Gen II (1991 & UP) for gear ratios 1.81:1, 1.84:1. (17/19) Engine: 4.3L/4.3LX
Replaces: 1547-861063A6 For: Alpha Gen II (1991 & UP) for gear ratios 1.98:1 and 2.40:1, 1.94(20/24) Engine: 3.0L/3.0LX
Replaces: 1547-861063A4 For: Gen II Upper (1998-up), 0L100040-up, 1.47:1 Ratio/Gen II Upper (1998-up) 0L100040-up, 1.62/2.00:1 Ratio´s/Gen II Upper (1998-up), 0L100040-up, 1.81:1 Ratio/Gen II Upper (1998-up), 0L100040-up, 1.94/2.40:1 Ratios
Replaces: 1623-815822A36, 1623-815822A30 For: Ratios 1.47, 1.62 Gen II (1998 & up), (0L100040 & up) serial number: OD469859 - OK999999
Replaces: 1547-861063A12 For: Alpha Gen II (1991 & UP) for gear ratios 1.47:1, 1.50:1.(20/22) Engine: 5.0LEFI/5.7/350 MAG
Replaces: 1547-9412A21 Ratio: 1.65:1/1.62:1 (24/24) Engine: 6 Cylinders inline
Replaces: 1547-9412A22 Ratio: 1.84/1.81 (17/19) Engine: V6 & 470/485
Replaces: 1547-9412A23 Ratio: 1.98/1.94 (20/24) Engine: 4 Cylinders Inline
Replaces: Mercruiser: 1547-9412A18, 547-9412A18, 9106A3, 9412A18, 9412A34
Serial no. 6225577 & up Replaces: 1623-8951A26, 1623-8951A33
Serial nr. OD469859 and up Replaces: 1623-815822A7, 1623-815822A33, 1623-815822A47
Replaces: Mercruiser: 1547-9412A20, 5-5010147CP, 547-9412A20, 547-9412R20, 8265A15, 9412A30, 9412A35; Sierra: 18-2450 Engine: up 300 HP - most V8 Ratio: 1.47 (20/22)
Replaces: Mercruiser: 74639, 74639A2, 74639B1, 74639Q02; Bombardier: 0508696, 0775542
Replaces: Mercruiser: 26-32511A1, 27-94996A3, 27-94996Q2, 27-94996T2, 64818A3, 94996A2, 94996A20, 94996BK2, 94996Q2; OMC/Johnson/Evinrude: 0508537, 0508539, 0508557, 0508577, 0775545 Alpha One Gen OD469859-OK999999 (1991 - 97)