Drive System

Replaces: 52-865344A01

#29

Replaces: 821630Q1, 821630A1/Q1

Replaces: 68100-1, 681001

Replaces: 807166A3

Replaces: 43-45814A5

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

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

Replaces: 27-55810, 27-558101

Replaces: 76850A2

For all GM engines except MR/ALPHA/BRAVO

with "Triangular", 3-Bolt coupler

Used on all older Chevy engines with 2 piece rear main seals

Replaces: 76850A2

Replaces: Yanmar: 18643A5; Mercruiser: 12632A4, 18643A2, 18643A7

Engines: For V6 & V8 Engines with 14" Flywheel.

Flex plate style for lste model, small crankshaft bolt pattern, style engines

Installs and removes drive shaft bearing retainer on  MC-I, R-MR, Blackhawk, all Bravo, Alpha I, Alpha I Gen II drive units and all Alpha drives units.

Replaces: 91-12037

Alpha One, Gen II

Replaces: Mercruiser: 816431A1; Bombardier: 0775491

Replaces: 45589A3

MC-1/R/MR/ALPHA ONE

MC-MR1-ALPHA ONE ALPHA ONE GEN II

Replaces: 45-55796