MERCRUISER
Drive System
ENGINE
ENGINE
COUPLER
ENGINE COUPLER
COUPLER
Replaces: 76850A2
Replaces: 14505-A2
Replaces: 59826A3
For all GM engines except MR/ALPHA/BRAVO
Use when new style block, with small crankshaft end, is
For Ford engines
with "Triangular", 3-Bolt coupler
replacing a Mercruiser block
ENGINE COUPLER APPLICATION
Model
Serial #
Part #
Model
Serial #
Part #
(7)
200 (5.0L)
B525982 & UP
110
1537370-2044030
120
1537370-6229717
(1)
205 (262 CID)
A331455 & UP
(5)
(1)
120 (2.5L)
6229718 & UP
(2)(7)
(2)(6)
➃
(7)
205 (4.3L)
B5257955 & UP
140
2508261-6229717
(7)
(Generation II)
D714370 & UP
(1)
140 (3.0L)
6229718 & UP
225
1539620-2694014
(2)(6)
225 & 225 S Ford
3385721 & UP
➃
228
4765100-6218461
140 (6 Cyl)
1538930-1725960
(1)
(6)
228
6218462 & UP
3.0L/3.0LX
C856559-F000000
(2)(7)
150
1666495-2048046
(5)
160
2048022-2770031
(1)
230
6218462 & UP
165 (6 Cyl)
2770032 & UP
(2)(7)
(7)
175 (4.3L)
B527955 & UP
(5)
470/485
(7)
230 (5.0L)
B525982 & UP
(224 CID) 3.7L
4208730- 6218036
233 Ford
4173000 & UP
165/ 170/
470 3.7L
6170297 & UP
250
4768000-4908849
4.3L
260
4908850-6218461
(7)
(Generation II)
D714107 & UP
(1)
260
6218462 & UP
185 (229 CID)
6330183 & UP
(2)(7)
(5)
(1)
185 (262 CID)
A331455 & UP
(2)(7)
All Mercruiser
(5)
w/ Bravo Drive
-
888 Ford
(7)
260 (5.7L)
B5259812 & UP
(188 HP)
3108723 & UP
(3)
300 MR
6668677 & UP
190
1564539 -1730903
➃(7)
(1)
898 (198 HP)
4762210 & UP
(7)
320 EFI
A543604 & UP
(2)(7)
(7)
350 Magnum
A635178 & UP
(1)
200
6218462 & UP
(7)
454 Magnum
A631894 & UP
(5)
(7)
(2)(7)
5.7L (Bravo)
B525982 & UP
(1) Early Models (2)Late Models (3) MR Cast Coupling
➃ MR Stamped Coupling
(5) General Motors has changed the V-6 and V-8 cylinder block and crankshaft to incorporate a one-piece full circle rear seal.
For this change to be made, General Motors had to redesign the cylinder block and crankshaft discontinuing the earlier style
engines. Mercury has added engine coupler # 14505-A2 (18-2172) to compensate for this change in design.
(6) For engine coupler w/o yoke use 18-2321
(7) For engine coupler w/o yoke use 18-2323
ENGINE ALIGNMENT TOOL
Replaces: 91-57797A3
SPANNER NUT WRENCH
For use with all #1 units
Replaces: 91-36235
697
