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Parts for Mercury Mark & Kiekhaefer Mark 10, 10A, 15A, 28, 28A, 28AD Cylinder Block & Crankcase Assembly

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 824-1205A 3 CYLINDER BLOCK AND CRANKCASE ASSEMBLY (1,,,, required per assembly)
CYLINDER BLOCK    O - Replaced by 824-2356A 1  
824-1205A 3This part has been superseded. CYLINDER BLOCK O - Replaced by 824-2356A 1
(more info)
    UnavailableUnavailable Parts
CYLINDER BL,NLA 824-2356A 1  
824-2356A 1OEM Part 824-2356A 1 - Cylinder Block, NLA (more info) About Mercury Marine $180.00 $180.00 Add to shopping cart
1 in stock. Explain stock levels
#1 824-1498A 2 CYLINDER BLOCK AND CRANKCASE ASSEMBLY (SEE NOTE BELOW) (,1,1,, required per assembly)
CYLINDER BLOCK    O - Replaced by 824-2356A 1  
824-1498A 2This part has been superseded. CYLINDER BLOCK O - Replaced by 824-2356A 1
(more info)
    UnavailableUnavailable Parts
#1 830-1405A 3 CYLINDER BLOCK AND CRANKCASE ASSEMBLY (,,,1,1 required per assembly)
CYLINDER BLOCK    O - Replaced by 830-3398A 3  
830-1405A 3This part has been superseded. CYLINDER BLOCK O - Replaced by 830-3398A 3
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O NLA  
830-3398A 3 CYLINDER BLOCK O NLA
(more info)
    UnavailableUnavailable Parts
#2 16-20990 STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2,2,2,2,2 required per assembly)
STUD              O NLA  
16-20990 STUD O NLA
(more info)
    UnavailableUnavailable Parts
#3 16-25734 STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2,2,2,2,2 required per assembly)
STUD              O - Replaced by 16-97012  
16-25734This part has been superseded. STUD O - Replaced by 16-97012
(more info)
    UnavailableUnavailable Parts
STUD 16-97012  
16-97012OEM Part 16-97012 - Stud, NLA (more info) About Mercury Marine $18.90 $9.21 Add to shopping cart
10+ in stock. Explain stock levels
#4 16-20956 STUD, CRANKCASE TO DRIVE SHAFT HOUSING (2,2,2,2,2 required per assembly)
STUD @3           O NLA  
16-20956 STUD @3 O NLA
(more info)
    UnavailableUnavailable Parts
#5 16-20074 STUD, CARBURETOR MOUNTING (2,2,2,, required per assembly)
STUD              O NLA  
16-20074 STUD O NLA
(more info)
    UnavailableUnavailable Parts
#5 16-23740 STUD, CARBURETOR MOUNTING (,,,2,2 required per assembly)
STUD              O - Replaced by 16-65865  
16-23740This part has been superseded. STUD O - Replaced by 16-65865
(more info)
    UnavailableUnavailable Parts
STUD @2           O NLA  
16-65865 STUD @2 O NLA
(more info)
    UnavailableUnavailable Parts
#6 17-23784 DOWEL PIN, CRANKCASE TO CYLINDER BLOCK (2,2,2,2,2 required per assembly)
PIN Dowel 17-23784  
17-23784OEM Part 17-23784 - Pin -Dowel (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
2 in stock. Explain stock levels
#7 21-27146A 1 CHECK VALVE ASSEMBLY, CRANKCASE (1,1,1,1,1 required per assembly)
CHECK VALVE ASSY,NLA 21-27146A 1  
21-27146A 1OEM Part 21-27146A 1 - Check Valve Assembly, NLA (more info) About Mercury Marine $8.00 $8.00 Add to shopping cart
6 in stock. Explain stock levels
#- 28744 *PLUG, WATER INLET TUBE (,1,1,, required per assembly)
PLUG,NLA 28744  
28744OEM Part 28744 - Plug, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
4 in stock. Explain stock levels
#- 25-20633 *"O" RING, WATER INLET TUBE PLUG (,1,1,, required per assembly)
O RING            O - Replaced by 25-62704  
25-20633This part has been superseded. O RING O - Replaced by 25-62704
(more info)
    UnavailableUnavailable Parts
O-RING (.362 x .1 25-62704 25-62704
25-62704OEM Part 25-62704 - O-Ring (more info) About Mercury Marine $0.82 $0.82 Add to shopping cart
Available to order:
Usually ships
within 8 days
O-Ring 18-7116
18-7116OEM Match 18-7116 - O-Ring 303067, 25-62704 (more info)
Replaces OEM #0303067
About Sierra Marine $0.99 $0.70 Add to shopping cart
5 in stock. Explain stock levels
#8 1123-1196A 2 CRANKCASE TOP ASSEMBLY (1,1,1,1,1 required per assembly)
CRANKCASE,NLA 1123-1196A 2  
1123-1196A 2OEM Part 1123-1196A 2 - Crankcase, NLA (more info) About Mercury Marine $38.00 $38.00 Add to shopping cart
1 in stock. Explain stock levels
#9 30-20464 BALL BEARING (1,1,1,1,1 required per assembly)
BALL BEARING      O - Replaced by 30-63326  
30-20464This part has been superseded. BALL BEARING O - Replaced by 30-63326
(more info)
    UnavailableUnavailable Parts
BEARING-BALL      O - Replaced by 30-63326T  
30-63326This part has been superseded. BEARING-BALL O - Replaced by 30-63326T
(more info)
    UnavailableUnavailable Parts
BEARING-BALL 30-63326T 30-63326T
30-63326TOEM Part 30-63326T - Ball Bearing (more info) About Mercury Marine $19.00 $19.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
Ball Bearing 18-1153
18-1153OEM Match 18-1153 - Bearing 30-63326 (more info) About Sierra Marine $24.49 $19.68 Add to shopping cart
2 in stock. Explain stock levels
#10 15-20514A 1 SHIM, BEARING TO CRANKCASE TOP (AR,AR,AR,A required per assembly)
SHIM ASSY,NLA 15-20514A 1  
15-20514A 1OEM Part 15-20514A 1 - Shim Assembly, NLA (more info) About Mercury Marine $9.00 $9.00 Add to shopping cart
5 in stock. Explain stock levels
#11 31-20594 ROLLER BEARING (1,1,1,1,1 required per assembly)
BEARING           O NLA 31-20594
31-20594 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#12 26-20530 OIL SEAL (1,1,1,1,1 required per assembly)
SEAL              O NLA 26-20530
26-20530 SEAL O NLA
(more info)
    UnavailableUnavailable Parts
#13 15-26931 SHIM, SPACER TO CRANKCASE TOP (.015) (1,1,1,1,1 required per assembly)
SHIM              O NLA  
15-26931 SHIM O NLA
(more info)
    UnavailableUnavailable Parts
#14 23-26563 SPACER, HOLD DOWN RING TO CRANKCASE TOP (1,1,1,1,1 required per assembly)
SPACER,NLA 23-26563  
23-26563OEM Part 23-26563 - Spacer, NLA (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
1 in stock. Explain stock levels
#15 26564 RING, MAGNETO HOLD DOWN (1,1,1,1,1 required per assembly)
RING              O NLA  
26564 RING O NLA
(more info)
    UnavailableUnavailable Parts
#16 10-28802 SCREW, HOLD DOWN RING TO CRANKCASE TOP (4,4,4,4,4 required per assembly)
SCREW             O NLA  
10-28802 SCREW O NLA
(more info)
    UnavailableUnavailable Parts
#18 26-20465 OIL SEAL, CRANKCASE (LOWER) (2,2,2,2,2 required per assembly)
OIL SEAL @5       O - Replaced by 26-31507  
26-20465This part has been superseded. OIL SEAL @5 O - Replaced by 26-31507
(more info)
    UnavailableUnavailable Parts
OIL SEAL @3       O - Replaced by 26-79884  
26-31507This part has been superseded. OIL SEAL @3 O - Replaced by 26-79884
(more info)
    UnavailableUnavailable Parts
OIL SEAL          O - Replaced by 26-16977 26-79884
26-79884This part has been superseded. OIL SEAL O - Replaced by 26-16977
(more info)
    UnavailableUnavailable Parts
SEAL Oil 26-16977 26-16977
26-16977OEM Part 26-16977 - Seal (more info) About Mercury Marine $14.70 $14.70 Add to shopping cart
7 in stock. Explain stock levels
Oil Seal 18-2026
18-2026OEM Match 18-2026 - Seal, 321453 (more info)
Replaces OEM #0321453
About Sierra Marine $13.99 $9.76 Add to shopping cart
10+ in stock. Explain stock levels
Oil Seal 18-2013
18-2013OEM Match 18-2013 - Seal, 26-16977 (more info) About Sierra Marine $14.49 $9.83 Add to shopping cart
10+ in stock. Explain stock levels
#19 23-27143 SPACER, LOWER OIL SEAL (1,1,1,1,1 required per assembly)
SPACER,NLA 23-27143  
23-27143OEM Part 23-27143 - Spacer, NLA (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
2 in stock. Explain stock levels
#20 27-26172 *GASKET, CYLINDER BLOCK TO BAFFLE PLATE (SEE NOTE BELOW) (1,1,1,, required per assembly)
Gasket,NLA 27-26172  
27-26172OEM Part 27-26172 - Gasket (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
10+ in stock. Explain stock levels
#20 27-28085 GASKET, CYLINDER BLOCK TO BAFFLE PLATE (SEE NOTE BELOW) (,1,1,1,1 required per assembly)
Gasket,NLA 27-28085  
27-28085OEM Part 27-28085 - Gasket (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
10+ in stock. Explain stock levels
#21 26170 PLATE, BAFFLE - EXHAUST MANIFOLD (SEE NOTE BELOW) (1,1,1,, required per assembly)
PLATE,NLA 26170  
26170OEM Part 26170 - Plate, NLA (more info) About Mercury Marine $14.00 $14.00 Add to shopping cart
2 in stock. Explain stock levels
#21 28086 PLATE, BAFFLE - EXHAUST MANIFOLD (SEE NOTE BELOW) (,1,1,1,1 required per assembly)
PLATE             O NLA  
28086 PLATE O NLA
(more info)
    UnavailableUnavailable Parts
#22 27-26171 GASKET, BAFFLE PLATE TO MANIFOLD COVER (SEE NOTE BELOW) (1,1,1,, required per assembly)
Gasket,NLA 27-26171  
27-26171OEM Part 27-26171 - Gasket (more info) About Mercury Marine $6.50 $6.50 Add to shopping cart
10+ in stock. Explain stock levels
#22 27-28090 GASKET, BAFFLE PLATE TO MANIFOLD COVER (SEE NOTE BELOW) (,1,1,1,1 required per assembly)
Gasket,NLA 27-28090  
27-28090OEM Part 27-28090 - Gasket (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
7 in stock. Explain stock levels
#23 26121 COVER, EXHAUST MANIFOLD (1,1,1,, required per assembly)
COVER ,NLA 26121  
26121OEM Part 26121 - Cover, NLA (more info) About Mercury Marine $35.00 $35.00 Add to shopping cart
5 in stock. Explain stock levels
#23 28074 COVER, EXHAUST MANIFOLD (,1,1,1,1 required per assembly)
COVER,NLA 28074  
28074OEM Part 28074 - Cover, NLA (more info) About Mercury Marine $34.00 $34.00 Add to shopping cart
2 in stock. Explain stock levels
#24 10-28636 SCREW, MANIFOLD COVER TO CYLINDER BLOCK (7,,,, required per assembly)
SCREW (.250-20 x 10-28636 10-28636
10-28636OEM Part 10-28636 - Screw - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#25 10-28635 SCREW, MANIFOLD COVER TO CYLINDER BLOCK (LOWER REAR) (,1,1,1,1 required per assembly)
SCREW (.250-20 x 10-28635 10-28635
10-28635OEM Part 10-28635 - Screw - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#26 27-26173 GASKET, CYLINDER BLOCK COVER (1,1,1,1,1 required per assembly)
Gasket,NLA 27-26173 27-26173
27-26173OEM Part 27-26173 - Gasket (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
10+ in stock. Explain stock levels
#27 1009-1200 COVER, CYLINDER BLOCK (1,1,1,1,1 required per assembly)
COVER             O NLA  
1009-1200 COVER O NLA
(more info)
    UnavailableUnavailable Parts
#28 28805 MOUNT, RUBBER - TOP COWL (2,2,2,2,2 required per assembly)
MOUNT ,NLA 28805 28805
28805OEM Part 28805 - Mount, NLA (more info) About Mercury Marine $20.00 $20.00 Add to shopping cart
10+ in stock. Explain stock levels
#29 12-27129 WASHER, RUBBER MOUNT STUD (2,,,, required per assembly)
WASHER            O NLA  
12-27129 WASHER O NLA
(more info)
    UnavailableUnavailable Parts
#29 12-28518 WASHER, RUBBER MOUNT STUD (,2,2,2,2 required per assembly)
WASHER            O NLA  
12-28518 WASHER O NLA
(more info)
    UnavailableUnavailable Parts
#30 11-20083 NUT, RUBBER MOUNT TO CYLINDER BLOCK COVER (2,2,2,2,2 required per assembly)
1122053 11-20083  
11-20083OEM Part 11-20083 - Nut - Priced Individually (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
10+ in stock. Explain stock levels
NUT (.312-24) 11-22053 11-22053
11-22053OEM Part 11-22053 - Nut - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#31 10-20653 SCREW, COVER TO CYLINDER BLOCK (6,6,6,6,6 required per assembly)
SCREW (.250-28 x 10-20653 10-20653
10-20653OEM Part 10-20653 - Bolt - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#32 11-20184 NUT, COVER TO CYLINDER BLOCK SCREW (6,6,,6, required per assembly)
NUT (1/4-28X7/32) 11-20184 11-20184
11-20184OEM Part 11-20184 - Nut - Priced Individually (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
2 in stock. Explain stock levels
#32 11-24652 NUT, COVER TO CYLINDER BLOCK SCREW (,,6,,6 required per assembly)
NUT (.250-28) 11-24652 11-24652
11-24652OEM Part 11-24652 - Nut - Priced Individually (more info) About Mercury Marine $1.20 $1.20 Add to shopping cart
10+ in stock. Explain stock levels
#33 27-26175 GASKET, TRANSFER PORT COVER (1,1,1,1,1 required per assembly)
Gasket,NLA 27-26175  
27-26175OEM Part 27-26175 - Gasket (more info) About Mercury Marine $6.00 $6.00 Add to shopping cart
10+ in stock. Explain stock levels
#34 26174 COVER, TRANSFER PORT (1,1,1,1,1 required per assembly)
COVER,NLA 26174  
26174OEM Part 26174 - Cover, NLA (more info) About Mercury Marine $4.50 $4.50 Add to shopping cart
10+ in stock. Explain stock levels
#35 54-20534 CLAMP, HARNESS - IGNITION WIRES (CENTER SCREW) (1,1,,1,1 required per assembly)
CLIP              O NLA  
54-20534 CLIP O NLA
(more info)
    UnavailableUnavailable Parts
#35 54-29425 CLAMP, HARNESS - IGNITION WIRES (CENTER SCREW) (,,1,, required per assembly)
CLAMP,NLA 54-29425  
54-29425OEM Part 54-29425 - Clamp, NLA (more info) About Mercury Marine $4.50 $4.50 Add to shopping cart
3 in stock. Explain stock levels
#36 10-20540 SCREW, PORT COVER TO CYLINDER BLOCK (3,,,, required per assembly)
SCREW,NLA 10-20540  
10-20540OEM Part 10-20540 - Screw, NLA (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
10+ in stock. Explain stock levels
#37 12-20028 WASHER, PORT COVER FASTENING SCREW (1,,,, required per assembly)
WASHER (.265 x .4 12-20028  
12-20028OEM Part 12-20028 - Washer - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#37 12-20533 WASHER, PORT COVER FASTENING SCREW (,1,1,1,1 required per assembly)
WASHER Note: must be ordered in multiples of 5 12-20533  
12-20533OEM Part 12-20533 - Washer - Priced Individually (more info) About Mercury Marine $1.10 $1.10 Add to shopping cart
10+ in stock. Explain stock levels
#38 10-25299 SCREW, CRANKCASE TOP FASTENING (2,2,2,2,2 required per assembly)
SCREW (.312-18 x 10-25299 10-25299
10-25299OEM Part 10-25299 - Screw - Priced Individually (more info) About Mercury Marine $0.30 $0.30 Add to shopping cart
7 in stock. Explain stock levels
#39 14-20747 TAB WASHER, CRANKCASE TOP FASTENING SCREW (2,2,2,2,2 required per assembly)
TAB WASHER,NLA 14-20747  
14-20747OEM Part 14-20747 - Tab Washer, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
#40 26799 BRACKET, TOP COWL MOUNTING (1,1,1,1,1 required per assembly)
BRACKET,NLA 26799  
26799OEM Part 26799 - Bracket, NLA (more info) About Mercury Marine $18.00 $18.00 Add to shopping cart
8 in stock. Explain stock levels
#41 10-29256 SCREW, MOUNTING BRACKET TO CRANKCASE (2,2,2,2,2 required per assembly)
SCREW (.312-18 x 10-29256 10-29256
10-29256OEM Part 10-29256 - Screw - Priced Individually (more info) About Mercury Marine $1.80 $1.80 Add to shopping cart
10+ in stock. Explain stock levels
#45 10-27165 SCREW, CENTER MAIN BEARING LOCKING (1,1,,, required per assembly)
1098261 10-27165  
10-27165OEM Part 10-27165 - Screw - Priced Individually (more info) About Mercury Marine $0.35 $0.35 Add to shopping cart
10+ in stock. Explain stock levels
SCREW (.375-16 x 10-98261 10-98261
10-98261OEM Part 10-98261 - Screw (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#45 10-20089 SCREW, CENTER MAIN BEARING LOCKING (,,1,1,1 required per assembly)
SCREW,NLA 10-20089  
10-20089OEM Part 10-20089 - Screw, NLA (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
10+ in stock. Explain stock levels
#46 14-20091 TAB WASHER, LOCKING SCREW (1,1,1,1,1 required per assembly)
TAB WASHER 14-20091  
14-20091OEM Part 14-20091 - Tab Washer - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#47 27092 STOP, CENTERING ARMS (1,1,1,, required per assembly)
STOP              O NLA  
27092 STOP O NLA
(more info)

Replaces OEM #0325092
    UnavailableUnavailable Parts
#48 10-26066 SCREW, CRANKCASE TO CYLINDER BLOCK (1 1/4") (6,6,6,6,6 required per assembly)
SCREW,NLA 10-26066  
10-26066OEM Part 10-26066 - Screw, NLA (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
10+ in stock. Explain stock levels
#49 10-21449 SCREW, CRANKCASE TO CYLINDER BLOCK (2") (2,2,2,2,2 required per assembly)
SCREW,NLA 10-21449  
10-21449OEM Part 10-21449 - Screw, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#50 10-26132 SCREW, CRANKCASE TO CYLINDER BLOCK (2 1/2") (2,2,2,2,2 required per assembly)
SCREW,NLA 10-26132  
10-26132OEM Part 10-26132 - Screw, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
#51 11-29250 NUT, CRANKCASE SCREW (10,10,10,1 required per assembly)
NUT (.312-24) 11-29250 11-29250
11-29250OEM Part 11-29250 - Nut - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
10+ in stock. Explain stock levels
#52 25-25429 "O" RING, CRANKCASE FASTENING SCREW (1,1,1,1,1 required per assembly)
O RING ,NLA 25-25429  
25-25429OEM Part 25-25429 - O-Ring - Priced Individually (more info) About Mercury Marine $1.35 $1.35 Add to shopping cart
10+ in stock. Explain stock levels
#52 28790 SWITCH, MERCURY - EXHAUST MANIFOLD COVER (1,,,, required per assembly)
SWITCH,NLA 28790  
28790OEM Part 28790 - Switch (more info) About Mercury Marine $16.50 $16.50 Add to shopping cart
2 in stock. Explain stock levels
#52 32-29107 SLEEVE, MERCURY SWITCH LEADS (2,,,, required per assembly)
SLEEVE            O NLA  
32-29107 SLEEVE O NLA
(more info)
    UnavailableUnavailable Parts
#52 54-22740 CLAMP, MERCURY SWITCH TO COVER (1,,,, required per assembly)
CLIP 54-22740  
54-22740OEM Part 54-22740 - Clip (more info) About Mercury Marine $3.50 $2.10 Add to shopping cart
10+ in stock. Explain stock levels
#52 10-30009 SCREW, MERCURY SWITCH CLAMP FASTENING (1,,,, required per assembly)
SCREW @5          O - Replaced by 10-69014  
10-30009This part has been superseded. SCREW @5 O - Replaced by 10-69014
(more info)
    UnavailableUnavailable Parts
SCREW @5          O - Replaced by 10-807754  
10-69014This part has been superseded. SCREW @5 O - Replaced by 10-807754
(more info)
    UnavailableUnavailable Parts
SCREW (#10-24 x . 10-807754 10-807754
10-807754OEM Part 10-807754 - Screw - Priced Individually (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#52 29128 "D" WASHER, MERCURY SWITCH CLAMP FASTENING SCREW (1,,,, required per assembly)
D WASHER          O NLA  
29128 D WASHER O NLA
(more info)
    UnavailableUnavailable Parts