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Replacements
Home / Mercury / Mercury Marine [Updated: Apr. 10, 2026] / Outboard / 2 Stroke Carb / 50, 500 4 CYL / [9248006 & Up] - Belgium - Cat.# 90-13287 / CYLINDER BLOCK AND CRANKCASE ASSEMBLY

CYLINDER BLOCK AND CRANKCASE ASSEMBLY

Parts (30)

#Part NumberDescriptionQtyStatus
- 97469A32 POWERHEAD ASSEMBLY 1 superseded
1 8358A4 CYLINDER BLOCK ASSEMBLY 1 superseded
10 68165   STUD 2 disc.
11 20033   PIN Dowel CRANKCASE TO CYLINDER BLOCK 2 superseded
12 87901   STUD CYLINDER BLOCK TO DRIVE SHAFT HOUSING (4") 2 disc.
13 68166   STUD (.312 x 2.125) CYLINDER BLOCK TO DRIVE SHAFT HOUSING 2
14 68167   STUD (.312-18/.312-24 x 2.560) CYLINDER BLOCK TO DRIVE SHAFT HOUSING 2 disc.
15 55511 SCREW (.312-18 x 1.500) CRANKCASE TO CYLINDER BLOCK 11 disc.
15 31984 SCREW (.312-18 x 1.375) CRANKCASE TO CYLINDER BLOCK 5
15 73275 SCREW (.312-18 x 2.88) CRANKCASE TO CYLINDER BLOCK 2
16 70132 WASHER (.323 x .563 x .063) Stainless Steel CRANKCASE SCREW 18 superseded
17 20359 SCREW (.375-16 x 1.00) CENTER MAIN BEARING LOCKING 1
17 98260 SCREW (.375-16 x .620) MAIN BEARING LOCKING 2
18 20091 TAB WASHER CENTER BEARING LOCKING SCREW 3
19 99127109 LINE (57.00 Inches Bulk) BALANCE - MAIN BEARING (5-1/2") 1 superseded
2 72038   BRACKET STARTER MOTOR (UPPER) 1 disc.
20 99664 ELBOW BALANCE TUBE TO CYLINDER BLOCK 2 superseded
21 65857 CONNECTOR BLEED HOSE (UPPER) 1 superseded
22 9938779 HOSE CYLINDER BLEED (11") 1
23 42867 CHECK VALVE BLEED HOSE (LOWER) 1 superseded
24 99156 INDICATOR TIMING - ELECTRIC 1 disc.
25 39349 SCREW (.312-18 x .750) Stainless Steel 1
26 26993 LOCKWASHER (.312) 1 superseded
3 73279   SCREW (.312-18 x 1.880) BRACKET TO CRANKCASE 2 disc.
4 26993   LOCKWASHER (.312) BRACKET SCREW 4 superseded
5 76867   COVER STARTER MOTOR (LOWER) 1
6 73279   SCREW (.312-18 x 1.880) COVER TO CRANKCASE 2 disc.
7 46933A7   CABLE ASSEMBLY GROUND 2 disc.
8 20032   PIN Dowel CYLINDER BLOCK TO MAIN BEARING 2 disc.
9 68164   STUD CARBURETOR (1-1/4") 4 superseded