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Engine models:

AQ 120B, 125A, 140A,

AQ 145A

Engine models:

MD 21A, D2-55, D2-75, MD 22A, L-A, LB,

TMD22A,B, 2003T, TB

Replaces: 21213660

Replaces: 21213660

Engines:

AQ 150A,B, 175A, 200C,D,F, 211A, 225C,D,F, 231A, 255A,B,

260A, 271A,C, 290A, 311A,B, 430A,B, 431A,B, 500A,B,

501A,B, 570A, 571A, 572A

4.3 Mods. HO, NC, LK & BY

Replaces: 842843

Old models

TMD30A, TAMD30A,

AQAD30A, AQD40A

MD40A, TMD40, A, B, C

Replaces: 3858847

4.3MD, HU

5.0 Ford HU, MD, NC

5.7HU, MD, NC

5.8 Ford NC,

7.4HU, MD

8.2MD

Replaces: 845261

All 30 & 40

Replaces: 1317793

Engine models:

AQ 171A, C, 251A

Replaces: 21186281

Engine models:

D2-55A, B, C, D

D2-75A, B

2040

Replaces: 21301848

Engine model:

D2-75

Replaces: 275369

Engine model:

AQ 125B, 145B, 131A, B, C, D 151A, B, C, 171A, C, 230A, 250A, 251A

Std.

ring size 1.75 x 1.75 x 3.5 mm

For Engines: 5.0 - 350 - 6,2 and 8.1 MPI

Replaces: Mercruiser: 35-866171A01, 35-892657, 35-8M0093688, 866171A01, 8M0093688