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Parts for Mercury Mark & Kiekhaefer Mark 50, 50E Cylinder Block & Crankcase Assembly (Exhaust Side)

#1 N.S.S. CYLINDER BLOCK (1,1 required per assembly)
N.S.S. - Not Sold Separate O
 

About Mercury Marine

OEM Part

N.S.S. - Not Sold Separate O [ More info ]
Unavailable
#2 1001-19A 1 CYLINDER BLOCK COVER ASSEMBLY (1,1 required per assembly)
COVER ASSY,NLA 1001-19A 1
 

About Mercury Marine

OEM Part

1001-19A 1 - Cover Assembly, NLA [ More info ]

Add to shopping cart $70.00
1 in stock. Explain stock levels

#3 22-20025 PIPE PLUG , CYLINDER BLOCK COVER (4,4 required per assembly)
22-20025 - PLUG              O - Replaced by 22-73379
 

This part has been superseded.

22-20025 - 22-20025 - PLUG O [ More info ]
Unavailable
Replaced by 22-73379
PLUG (.250-18) 22-73379
 

About Mercury Marine

OEM Part

22-73379 - Plug - Priced Individually [ More info ]

Add to shopping cart $6.00 $3.36
8 in stock. Explain stock levels

#- 23-20582 BUSHING ASSY., CYLINDER BLOCK COVER (2,2 required per assembly)
20582 - LEVER             O NLA
 

About Mercury Marine

OEM Part

20582 - LEVER O NLA [ More info ]
Unavailable
#4 23-20326 SPACER , CYL. BLOCK COVER TO TOP COWL (2,2 required per assembly)
SPACER,NLA 23-20326
23-20326

About Mercury Marine

OEM Part

23-20326 - Spacer, NLA [ More info ]

Add to shopping cart $15.00
10+ in stock. Explain stock levels

#5 27-20026 GASKET , CYLINDER BLOCK COVER (1,1 required per assembly)
Gasket,NLA 27-20026
 

About Mercury Marine

OEM Part

27-20026 - Gasket [ More info ]

Add to shopping cart $6.50
10+ in stock. Explain stock levels

#6 10-20027 SCREW , CYLINDER BLOCK COVER MOUNTING (18,18 required per assembly)
10-20027 - SCREW (.250-20 x  O - Replaced by 10-28668
 

This part has been superseded.

10-20027 - 10-20027 - SCREW (.250-20 x O [ More info ]
Unavailable
Replaced by 10-28668
SCREW (.250-20 x .875) 10-28668
10-28668

About Mercury Marine

OEM Part

10-28668 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.20
10+ in stock. Explain stock levels

Screw,Wtr Pckt/Mr Alpha
18-3229

About Sierra Marine

OEM Match

18-3229-9 - Screw, 10-28668, 5PK [ More info ]

Add to shopping cart $9.95 $4.54
Available to order: Usually ships within 8 days. Explain stock levels

#7 12-20028 WASHER , CYL BLOCK COVER MTG SCREW (18,18 required per assembly)
WASHER (.265 x .437 x . 12-20028
 

About Mercury Marine

OEM Part

12-20028 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.40
10+ in stock. Explain stock levels

#- 1100-39A 1 END CAP ASSEMBLY , UPPER (1, required per assembly)
END CAP ASSY ,NLA 1100-39A 1
 

About Mercury Marine

OEM Part

1100-39A 1 - End Cap Assembly, NLA [ More info ]

Add to shopping cart $22.00
1 in stock. Explain stock levels

#- 1100-339A 1 END CAP ASSEMBLY , UPPER (1,1 required per assembly)
END CAP ASSY ,NLA 1100-339A 1
1100-339A 1

About Mercury Marine

OEM Part

1100-339A 1 - End Cap Assembly, NLA [ More info ]

Add to shopping cart $98.00
9 in stock. Explain stock levels

#8 30-20080 BALL BEARING UPPER END CAP (1,1 required per assembly)
30-20080 - BALL BEARING      O - Replaced by 30-53853
 

This part has been superseded.

30-20080 - 30-20080 - BALL BEARING O [ More info ]
Unavailable
Replaced by 30-53853
30-53853 - BALL BEARING      O - Replaced by 30-63742
 

This part has been superseded.

30-53853 - 30-53853 - BALL BEARING O [ More info ]
Unavailable
Replaced by 30-63742
30-63742 - BEARING Ball      O - Replaced by 30-63742T
30-63742

This part has been superseded.

30-63742 - 30-63742 - BEARING Ball O [ More info ]
Unavailable
Replaced by 30-63742T
BEARING Ball 30-63742T
30-63742T

About Mercury Marine

OEM Part

30-63742T - Ball Bearing [ More info ]

Add to shopping cart $29.00 $24.84
Available to order: Usually ships within 8 days. Explain stock levels

Ball Bearing
18-1154

About Sierra Marine

OEM Match

18-1154 - Bearing, 30-63742, 377139 [ More info ]

Add to shopping cart $25.99 $19.44
Available to order: Usually ships within 8 days. Explain stock levels

#9 26-20079 OIL SEAL , UPPER END CAP BEARING (1,1 required per assembly)
26-20079 - OIL SEAL          O - Replaced by 26-25837
 

This part has been superseded.

26-20079 - 26-20079 - OIL SEAL O [ More info ]
Unavailable
Replaced by 26-25837
26-25837 - OIL SEAL          O - Replaced by 26-29476
 

This part has been superseded.

26-25837 - 26-25837 - OIL SEAL O [ More info ]
Unavailable
Replaced by 26-29476
2641953 26-29476
 

About Mercury Marine

OEM Part

26-29476 - OIL SEAL - Priced Individually [ More info ]

Add to shopping cart $9.60
8 in stock. Explain stock levels

SEAL Note: must be ordered in multiples of 2 26-41953
26-41953

About Mercury Marine

OEM Part

26-41953 - Seal - Priced Individually [ More info ]

Add to shopping cart $15.30
10+ in stock. Explain stock levels

Oil Seal
18-2016

About Sierra Marine

OEM Match

18-2016 - Seal, 26-41953 [ More info ]

Add to shopping cart $10.99 $8.18
10+ in stock. Explain stock levels

#10 25-20081 "O" RING UPPER END CAP (1,1 required per assembly)
O-RING 25-20081
25-20081

About Mercury Marine

OEM Part

25-20081 - O-Ring - Priced Individually [ More info ]

Add to shopping cart $2.40
10+ in stock. Explain stock levels

O-Ring
18-7151

About Sierra Marine

OEM Match

18-7151-9 - (PK5) O-Ring Mercury 25-20081 [ More info ]

Add to shopping cart $12.45 $7.10
2 in stock. Explain stock levels

#12 15-20082 SHIM , END CAP COVER TO CRANKCASE (1,1 required per assembly)
#13 11-20083 NUT, END CAP COVER MOUNTING STUD (4,4 required per assembly)
1122053 11-20083
 

About Mercury Marine

OEM Part

11-20083 - Nut - Priced Individually [ More info ]

Add to shopping cart $0.80
10+ in stock. Explain stock levels

NUT (.312-24) 11-22053
11-22053

About Mercury Marine

OEM Part

11-22053 - Nut - Priced Individually [ More info ]

Add to shopping cart $2.00
10+ in stock. Explain stock levels

#14 13-20223 WASHER , END CAP COVER MTG. STUD NUT (4,4 required per assembly)
13-20223 - LOCKWASHER        O - Replaced by 13-26993
 

This part has been superseded.

13-20223 - 13-20223 - LOCKWASHER O [ More info ]
Unavailable
Replaced by 13-26993
LOCKWASHER (.312) 13-26993
 

About Mercury Marine

OEM Part

13-26993 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $1.40
10+ in stock. Explain stock levels

#15 16-20351 STUD , CRANKCASE TO UPPER END CAP (4,4 required per assembly)
16-20351 - STUD              O - Replaced by 16-35099
 

This part has been superseded.

16-20351 - 16-20351 - STUD O [ More info ]
Unavailable
Replaced by 16-35099
16-35099 - STUD @3           O - Replaced by 16-64280
 

This part has been superseded.

16-35099 - 16-35099 - STUD @3 O [ More info ]
Unavailable
Replaced by 16-64280
16-64280 - STUD              O - Replaced by 16-68164
 

This part has been superseded.

16-64280 - 16-64280 - STUD O [ More info ]
Unavailable
Replaced by 16-68164
16-68164 - STUD              O - Replaced by 16-64936
 

This part has been superseded.

16-68164 - 16-68164 - STUD O [ More info ]
Unavailable
Replaced by 16-64936
STUD,NLA 16-64936
 

About Mercury Marine

OEM Part

16-64936 - Stud, NLA [ More info ]

Add to shopping cart $5.00
10+ in stock. Explain stock levels

#-- 20996A 1 MAGNETO ADAPTER ASSEMBLY (1,1 required per assembly)
20996A 1 - ADAPTOR ASSY      O NLA
 

About Mercury Marine

OEM Part

20996A 1 - ADAPTOR ASSY O NLA [ More info ]
Unavailable
#16 26-21969 OIL SEAL , MAGNETO SHAFT BEARING (1,1 required per assembly)
26-21969 - OIL SEAL          O NLA
 

About Mercury Marine

OEM Part

26-21969 - OIL SEAL O NLA [ More info ]
Unavailable
#17 53-20067 SNAP RING , MAGNETO SHAFT BEARING (1,1 required per assembly)
53-20067 - RETAINING RING    O NLA
 

About Mercury Marine

OEM Part

53-20067 - RETAINING RING O NLA [ More info ]
Unavailable
#18 30-20066 BALL BEARING , MAGNETO SHAFT (1,1 required per assembly)
BEARING-BALL,NLA 30-20066
30-20066

About Mercury Marine

OEM Part

30-20066 - Ball Bearing [ More info ]

Add to shopping cart $50.00
9 in stock. Explain stock levels

Distributor Rotor Shaft Bearin
18-1151

About Sierra Marine

OEM Match

18-1151 - Bearing, 30-20066 - Special Order - No Returns [ More info ]

Add to shopping cart $59.99
In stock - special order item. Explain stock levels

#20 31-20069 NEEDLE BEARING , MAGNETO SHAFT LOWER (1,1 required per assembly)
31-20069 - ROLLER BEARING    O NLA
31-20069

About Mercury Marine

OEM Part

31-20069 - ROLLER BEARING O NLA [ More info ]
Unavailable
#21 26-21970 OIL SEAL , MAGNETO SHAFT NEEDLE BRG. (1,1 required per assembly)
26-21970 - OIL SEAL          O NLA
 

About Mercury Marine

OEM Part

26-21970 - OIL SEAL O NLA [ More info ]
Unavailable
#22 10-20259 SCREW , GREASE FILLER HOLE (1,1 required per assembly)
10-20259 - SCREW             O - Replaced by 10-28634
 

This part has been superseded.

10-20259 - 10-20259 - SCREW O [ More info ]
Unavailable
Replaced by 10-28634
1079953 10-28634
10-28634

About Mercury Marine

OEM Part

10-28634 - Drain Screw ONLY, Priced Individually [ More info ]

Add to shopping cart $0.55
5 in stock. Explain stock levels

1079953A2 10-79953
10-79953

About Mercury Marine

OEM Part

10-79953 - Drain Screw ONLY, Priced Individually [ More info ]

Add to shopping cart $2.00
5 in stock. Explain stock levels

1079953Q2 10-79953A 2
10-79953A 2

About Mercury Marine

OEM Part

10-79953A 2 - SCREW KIT-DRAIN [ More info ]

Add to shopping cart $3.50
3 in stock. Explain stock levels

10-79953Q 2 - SCREW KIT (.375-1 O - Replaced by 10-79953Q04
10-79953Q 2

This part has been superseded.

10-79953Q 2 - 10-79953Q 2 - SCREW KIT (.375-1 O [ More info ]
Unavailable
Replaced by 10-79953Q04
SCREW KIT Drain 10-79953Q04
10-79953Q04

About Mercury Marine

OEM Part

10-79953Q04 - Screw Kit - Priced Individually [ More info ]

Add to shopping cart $5.80
10+ in stock. Explain stock levels

DRAIN PLUG
18-2244

About Sierra Marine

OEM Match

18-2244 - Plug Kit, 10-79953A2 [ More info ]

Add to shopping cart $2.99 $2.07
10+ in stock. Explain stock levels

SCREW-DRAIN Note: must be ordered in multiples of 2   10 79953K04
10 79953K04

About Mercury Marine

OEM Part

10-79953K04 - Drain Screw - Priced Individually [ More info ]

Add to shopping cart $5.80
10+ in stock. Explain stock levels

#23 12-20260 WASHER , GREASE FILLER SCREW (1,1 required per assembly)
12-20260 - WASHER            O - Replaced by 12-19183
12-20260

This part has been superseded.

12-20260 - 12-20260 - WASHER O [ More info ]
Unavailable
Replaced by 12-19183
12-19183 - WASHER Fiber      O - Replaced by 12-19183  2
12-19183

This part has been superseded.

12-19183 - 12-19183 - WASHER Fiber O [ More info ]
Unavailable
Replaced by 12-19183 2
12-19183  2 - WASHER            O - Replaced by 12-19183  3
12-19183  2

This part has been superseded.

12-19183 2 - 12-19183 2 - WASHER O [ More info ]
Unavailable
Replaced by 12-19183 3
SEAL 12-19183  3
12-19183  3

About Mercury Marine

OEM Part

12-19183 3 - Seal -Blue - Priced Individually [ More info ]

Add to shopping cart $1.00
10+ in stock. Explain stock levels

DRAIN GASKET
18-2945

About Sierra Marine

OEM Match

18-2945-9 - Gasket 12-19183 2-Pack [ More info ]

Add to shopping cart $2.78 $1.52
10+ in stock. Explain stock levels

SEAL (4) Note: must be ordered in multiples of 2   12 19183Q02
12 19183Q02

About Mercury Marine

OEM Part

12-19183Q02 - Seals, Pack of 4 [ More info ]

Add to shopping cart $5.10
6 in stock. Explain stock levels

SEAL (4) Note: must be ordered in multiples of 2   12 19183K02
12 19183K02

About Mercury Marine

OEM Part

12-19183K02 - Seal, Pack of 4 [ More info ]

Add to shopping cart $5.10
4 in stock. Explain stock levels

#24 10-21046 SCREW , MAGNETO ADAPTER TO CRANKCASE (3,3 required per assembly)
10-21046 - SCREW             O NLA
 

About Mercury Marine

OEM Part

10-21046 - SCREW O NLA [ More info ]
Unavailable
#26 12-20546 WASHER , MAGNETO ADAPTER SCREW (3,3 required per assembly)
WASHER Note: must be ordered in multiples of 5 12-20546
 

About Mercury Marine

OEM Part

12-20546 - Washer - Priced Individually [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

#-- 27-20095 GASKET , CYL. BLOCK TO MANIFOLD PLATE (1,1 required per assembly)
27-20095 - GASKET            O NLA
 

About Mercury Marine

OEM Part

27-20095 - GASKET O NLA [ More info ]
Unavailable
#-- 20096 PLATE , EXHAUST MANIFOLD (1,1 required per assembly)
20096 - PLATE             O NLA
 

About Mercury Marine

OEM Part

20096 - PLATE O NLA [ More info ]
Unavailable
#-- 27-20097 ,GASKET , MANIFOLD PLATE COVER (1,1 required per assembly)
27-20097 - GASKET            O NLA
 

About Mercury Marine

OEM Part

27-20097 - GASKET O NLA [ More info ]
Unavailable
#-- 10-20098 SCREW , MANIFOLD COVER MOUNTING (17,17 required per assembly)
10-20098 - SCREW260-114@25   O NLA
 

About Mercury Marine

OEM Part

10-20098 - [email protected] O NLA [ More info ]
Unavailable
#-- 13-20924 LOCKWASHER , MANIFOLD COVER SCREW (17,17 required per assembly)
13-20924 - LOCKWASHER        O - Replaced by 13-26992
 

This part has been superseded.

13-20924 - 13-20924 - LOCKWASHER O [ More info ]
Unavailable
Replaced by 13-26992
LOCKWASHER (.250) Stain 13-26992
 

About Mercury Marine

OEM Part

13-26992 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.80
10+ in stock. Explain stock levels

#-- 27-20390 GASKET , POWERHEAD TO BOTTOM COWL (1,1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-20390
27-20390

About Mercury Marine

OEM Part

27-20390 - Gasket - Priced Individually [ More info ]

Add to shopping cart $20.50 $17.55
4 in stock. Explain stock levels

#-- 32-20934 ,AIR LINE (1,1 required per assembly)
32-20934 - AIR LINE          O - Replaced by 32-22795A 1
 

This part has been superseded.

32-20934 - 32-20934 - AIR LINE O [ More info ]
Unavailable
Replaced by 32-22795A 1
32-22795A 1 - HOSE ASSY         O - Replaced by 32-49471
 

This part has been superseded.

32-22795A 1 - 32-22795A 1 - HOSE ASSY O [ More info ]
Unavailable
Replaced by 32-49471
FUEL LINE,NLA 32-49471
 

About Mercury Marine

OEM Part

32-49471 - Fuel Line, NLA [ More info ]

Add to shopping cart $9.50
1 in stock. Explain stock levels

#-- 27-21919 GASKET SET (1,1 required per assembly)
27-21919 - GASKET SET        O - Replaced by 27-21919A 1
 

This part has been superseded.

27-21919 - 27-21919 - GASKET SET O [ More info ]
Unavailable
Replaced by 27-21919A 1
27-21919A 1 - GASKET SET        O NLA
 

About Mercury Marine

OEM Part

27-21919A 1 - GASKET SET O NLA [ More info ]
Unavailable