Upper Unit Gear Set

Replaces: 43-853640A2

For: Gen II Upper (1998-up), 0L100040-up, 1.62/2.00:1 Ratios (24-24 Teeth)

Gear Set (2.00/1.62 Ratio) (24-24)

Replaces: 43-66773A3

Replaces: 806105Q1

Replaces: 43-75325A3

(1.84:1 Ratio) (Drive Gear = 17 teeth Driven Gear= 19 teeth)

For: V-6 and 470/485 (4 Cyl. etc.) and Gen II (S/N K999999 & BELOW)

Replaces: 26-965031

Gear Set (1.81 Ratio) (17-19)

Replaces: 43-853643A2

1.81 Ratio Upper Gear Set, 17-19 Teeth

For: Alpha I Gen II 1998-up/0L00040-up

   For: Mercruiser Vazer

43-18411A2

OEM

Replaces: Mercruiser: 31-35988A12, 35988A12, 35988A2

Replaces: Mercruiser: 26-816575A3, 816575A1, 816575A3; Bombardier: 0775428

Replaces: 43-45814A5

Replaces: 43-45814A5

(1.65:1 Ratio) (Drive Gear = 24 teeth Driven Gear = 24 teeth)

For: 6 Cyl. Inline S/N K9999999 & BELOW 

Replaces: 26-32511

Replaces: 28-56654, 28-8M0032834, 8M0032834 

Key for Water Pump for Mercruiser # 1, Alpha One, DRS and Mercury, Mariner Outboard Lower Units

Replaces: 28-56654

Replaces: 31-53079A1, 31-63079A1

Bearing, Upper Drive Shaft for Mercruiser With Preload Pin

Replaces: 15-57007A1

Replaces: Mercruiser: 26-68493, 26-823894, 68493, 823894, 823894B; Bombardier: 0508700

Replaces: 43-853640A2

For: Gen II Upper (1998-up), 0L100040-up, 1.62/2.00:1 Ratios (24-24 Teeth)

Gear Set (2.00/1.62 Ratio) (24-24)

Replaces: 43-66773A3

Replaces: 806105Q1

Replaces: 43-75325A3

(1.84:1 Ratio) (Drive Gear = 17 teeth Driven Gear= 19 teeth)

For: V-6 and 470/485 (4 Cyl. etc.) and Gen II (S/N K999999 & BELOW)

Replaces: 26-965031