Parts Catalog

Replacements
Home / Mercury / Mercury Marine [Updated: Apr. 10, 2026] / Outboard / 2 Stroke EFI / 3.0L MARATHON / [0T409000 THRU 0T800999] - USA - Cat.# 90-80319902 / CYLINDER BLOCK AND END CAP

CYLINDER BLOCK AND END CAP

Parts (88)

#Part NumberDescriptionQtyStatus
- 832934A00 GASKET SET Powerhead 1
- 883892A02 POWERHEAD ASSEMBLY (225) [0T598999] & Below 1 superseded
- 883892A03 POWERHEAD ASSEMBLY Mechanical Oil Pump (225) [0T599000] & Up 1 superseded
- 883892A04 POWERHEAD ASSEMBLY Electric Oil Pump (225) [OT599000] & Up 1 superseded
- 883893A02 POWERHEAD ASSEMBLY (3L Work) [0T598999] & Below 1 superseded
- 883893A03 POWERHEAD ASSEMBLY (3L Work) [0T599000] & Up 1 superseded
- 883894A02 POWERHEAD ASSEMBLY (250) [0T598999] & Below 1 superseded
- 883894A03 POWERHEAD ASSEMBLY (250) [0T599000] & Up 1 superseded
- 891823A04 POWERHEAD ASSEMBLY (200) 1 superseded
1 9811A82 CYLINDER BLOCK (225) [0T598999] & Below 1 disc.
1 9811T87 CYLINDER BLOCK ASSEMBLY (225) [0T599000] & Up 1 superseded
1 9811A81 CYLINDER BLOCK (3L Work) [0T598999] & Below 1 disc.
1 9811T86 CYLINDER BLOCK (200/3L Work) [0T599000] & Up 1 superseded
1 9811A83 CYLINDER BLOCK (250) [0T598999] & Below 1 superseded
1 9811T88 CYLINDER BLOCK (250) [0T599000] & Up 1 superseded
10 850309   PLUG 6 superseded
11 81893435   SCREW (M8 x 35) 14
12 82446180   SCREW (M10 x 80) 8
13 782792 FITTING Elbow 45 Degree (1.25) 1 superseded
14 13536A13 SENSOR ASSEMBLY Temperature 1
15 8405101   PIN 2
16 8588641 RETAINER 1
17 856774 WASHER (.406 x .750 x .105) Stainless Steel 10 superseded
18 4013610 NUT (M10) Stainless Steel 10
19 8283582 SENSOR 1 superseded
2 81893440   SCREW (M8 x 40) 4
20 40011107 SCREW (M5 x 16) Stainless Steel 2
21 9787A4 END CAP ASSEMBLY 1
22 62700   O-RING (3.237 x .103) 1
23 8308981   SEAL 2
24 82130020 SCREW (M6 x 20) 4
25 857186A1 PLATE ASSEMBLY 1 superseded
26 855729   MOUNT 3
27 82130145 SCREW (M10 x 45) 3
28 82130012 SCREW (M6 x 12) 2
29 19565 GROMMET 1 superseded
3 8569662   BRACKET 2 superseded
30 855725 WASHER 6
31 137151 RETAINER 1
32 858951 J CLIP 1
33 82130012 SCREW (M6 x 12) 1
34 818574 SEAL 2
35 812851A19 CYLINDER HEAD (225/250) [0T598999] & Below 2 superseded
35 812851A22 CYLINDER HEAD (200/225/250) [0T599000] & Up 1 superseded
35 812851A18 CYLINDER HEAD (3L Work) [0T598999] & Below 2 superseded
35 812851A21 CYLINDER HEAD (3L Work) [0T599000] & Up 1 superseded
36 884391   SEAL [0T599000] & Up 6
36 878453 SEAL [0T598999] & Below 6
37 8855991 THERMOSTAT 54°C (130°F) [0T599000] & Up 2 superseded
38 8503181 GASKET 2
39 8503173 COVER Thermostat [0T598999] & Below 2
39 887926 COVER Thermostat [0T599000] & Up 2 superseded
4 903509   STUD (M10 x 1.5 x 64) 4
40 82130025 SCREW (M6 x 25) 4
41 859096 SCREW (M8 x 50) 40 superseded
42 858535 SENSOR ASSEMBLY Temperature 2 superseded
43 627021   O-RING (.301 x .070) 2
44 81893414 SCREW (M8 x 14) 1
45 328022 PLUG Pipe (.125-27) Brass 1
46 8266241 CLAMP 1
47 82130012 SCREW (M6 x 12) 2
48 8583561 LEVER TPI 1
49 82130025 SCREW (M6 x 25) 3
5 8154431   STUD (M10 x 1.5 x 155) 6
50 856954 BUSHING 3
51 834985 GROMMET 3 superseded
52 65567 WASHER (.265 x .750 x .048) Stainless Steel 3
53 40011113 SCREW (M5 x 45) Stainless Steel 3
54 83295211 INDICATOR Throttle Position 1 superseded
55 859095 LINK 1 superseded
56 858932 CLIP 1
57 8582261 COVER 1
58 8544862 BRACKET 1
59 816311T TIE STRAP (8.00 Inches) AR
6 8248577   DEFLECTOR 6
60 8533394 FITTING 2
61 8404461 HOSE (STARBOARD) 1
62 8404462 HOSE (PORT) 1
63 81893420 SCREW (M8 x 20) 1
64 858902 CLAMP 1
65 878187 SENSOR ASSEMBLY Knock (200/3.0L WORK) 2 superseded
66 882781 STUD (200/3.0L WORK) 2
67 826292 NUT (M10) Brass/Nickel Plated (200/3.0L WORK) 2
68 NLA No Longer Available Thermostat (120 Degrees) (Refer to Service Bulletin 2002-08) [0T598999] & Below 2
69 854639 SEAL [0T598999] & Below 2 superseded
7 8781051   CHECK VALVE 1
8 67296   PIN 3 superseded
9 43044   PIN Dowel - Without Hole (.375 x .625) 1