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Parts for Mercury Marine 125 HP (4 Cylinder) Cylinder Block & Crankcase Cylinder Block & Crankcase

#1 877-9191A24 CYLINDER BLOCK (1 required per assembly)
877-9191A24 - CYLINDER BLOCK    O - Replaced by 877-9191T24
 

This part has been superseded.

877-9191A24 - 877-9191A24 - CYLINDER BLOCK O [ More info ]
Unavailable
Replaced by 877-9191T24
CYLINDER BLOCK 877-9191T24
 

About Mercury Marine

OEM Part

877-9191T24 - Cylinder Block [ More info ]

Add to shopping cart $1,910.07
Available to order: Usually ships within 8 days. Explain stock levels

#26 78799 1 TEMPERATURE SENDER (1 required per assembly) (35-1/2 IN.)(RING TERMINAL)
SENDER Temperature (37. 78799  1
 

About Mercury Marine

OEM Part

78799 1 - Temperature Sender [ More info ]

Add to shopping cart $70.34
Available to order: Usually ships within 8 days. Explain stock levels

#2 10-40096 80 SCREW (M10 X 80) (10 required per assembly)
SCREW (M10 x 80) 10-40096 80
10-40096 80

About Mercury Marine

OEM Part

10-40096 80 - Screw [ More info ]

Add to shopping cart $3.20
5 in stock. Explain stock levels

#27 78799 2 TEMPERATURE SENDER (1 required per assembly) (22-1/2 IN.)(FEMALE TERMINAL)
SENDER Temperature 78799  2
78799  2

About Mercury Marine

OEM Part

78799 2 - Temperature Sender [ More info ]

Add to shopping cart $71.17
Available to order: Usually ships within 8 days. Explain stock levels

#28 44552 RETAINER (1 required per assembly)
889733 44552
 

About Mercury Marine

OEM Part

44552 - Retainer [ More info ]

Add to shopping cart $2.50
2 in stock. Explain stock levels

RETAINER 889733
889733

About Mercury Marine

OEM Part

889733 - Retainer [ More info ]

Add to shopping cart $4.00
Available to order: Usually ships within 8 days. Explain stock levels

#3 17-67296 DOWEL PIN (BEARING RACE) (4 required per assembly)
17-67296 - PIN               O - Replaced by 17-8M0036405
 

This part has been superseded.

17-67296 - 17-67296 - PIN O [ More info ]
Unavailable
Replaced by 17-8M0036405
PIN 17-8M0036405
 

About Mercury Marine

OEM Part

17-8M0036405 - Pin - Center Main [ More info ]

Add to shopping cart $2.50
Available to order: Usually ships within 8 days. Explain stock levels

#4 17-43044 DOWEL PIN (1 required per assembly)
PIN Dowel - Without Hol 17-43044
 

About Mercury Marine

OEM Part

17-43044 - Pin -Dowel-solid [ More info ]

Add to shopping cart $1.70
10+ in stock. Explain stock levels

#29 10-48409 SCREW (1 required per assembly)
SCREW (#10-16 x .625) S 10-48409
10-48409

About Mercury Marine

OEM Part

10-48409 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.70
10+ in stock. Explain stock levels

#30 12-56681 WASHER (1 required per assembly)
WASHER (.203 x .500 x . 12-56681
 

About Mercury Marine

OEM Part

12-56681 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.40
5 in stock. Explain stock levels

#5 42884 1 COVER (TOP) (1 required per assembly)
42884  1 - COVER             O NLA
 

About Mercury Marine

OEM Part

42884 1 - COVER O NLA [ More info ]
Unavailable
#6 76867 COVER (BOTTOM) (1 required per assembly)
COVER 76867
76867

About Mercury Marine

OEM Part

76867 - Cover [ More info ]

Add to shopping cart $20.09
9 in stock. Explain stock levels

#31 86596T POPPET VALVE (1 required per assembly)
POPPET VALVE 86596T
86596T

About Mercury Marine

OEM Part

86596T - Poppet [ More info ]

Add to shopping cart $6.50
3 in stock. Explain stock levels

#32 64877 DIAPHRAGM (1 required per assembly)
64877 - DIAPHRAGM         O - Replaced by -64877  1
64877

This part has been superseded.

64877 - 64877 - DIAPHRAGM O [ More info ]
Unavailable
Replaced by -64877 1
DIAPHRAGM 64877  1
64877  1

About Mercury Marine

OEM Part

64877 1 - Diaphragm [ More info ]

Add to shopping cart $7.30
10 in stock. Explain stock levels

#7 10-817427 50 SCREW (M8 X 50) (4 required per assembly)
SCREW (M8 x 50) 10-817427 50
10-817427 50

About Mercury Marine

OEM Part

10-817427 50 - Screw [ More info ]

Add to shopping cart $2.00
Available to order: Usually ships within 8 days. Explain stock levels

#33 12-94182 WASHER (1 required per assembly)
WASHER 12-94182
 

About Mercury Marine

OEM Part

12-94182 - Washer [ More info ]

Add to shopping cart $2.40
1 in stock. Explain stock levels

#8 65848 CARRIER (1 required per assembly)
CARRIER 65848
65848

About Mercury Marine

OEM Part

65848 - Carrier [ More info ]

Add to shopping cart $2.40
9 in stock. Explain stock levels

#9 25-64872 GROMMET (1 required per assembly)
GROMMET Note: must be ordered in multiples of 2 25-64872
25-64872

About Mercury Marine

OEM Part

25-64872 - Grommet - Priced Individually [ More info ]

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

#34 10-69570 SCREW (10-16 X 3/4 IN.) (1 required per assembly)
SCREW (#10-16 x .750) 10-69570
10-69570

About Mercury Marine

OEM Part

10-69570 - Screw [ More info ]

Add to shopping cart $1.30
10+ in stock. Explain stock levels

#35 24-18336 SPRING (1 required per assembly)
2442996 24-18336
 

About Mercury Marine

OEM Part

24-18336 - Spring [ More info ]

Add to shopping cart $3.05
1 in stock. Explain stock levels

SPRING (Stainless Steel 24-42996
24-42996

About Mercury Marine

OEM Part

24-42996 - Spring [ More info ]

Add to shopping cart $1.40
4 in stock. Explain stock levels

#10 813801A 1 CARRIER ASSEMBLY (1 required per assembly)
CARRIER ASSEMBLY 813801A 1
813801A 1

About Mercury Marine

OEM Part

813801A 1 - Carrier Assembly [ More info ]

Add to shopping cart $13.20
6 in stock. Explain stock levels

#11 21-42657A 3 CHECK VALVE (3 required per assembly)
CHECK VALVE 21-42657A 3
 

About Mercury Marine

OEM Part

21-42657A 3 - Check Valve Assembly [ More info ]

Add to shopping cart $4.80
2 in stock. Explain stock levels

#36 14586 THERMOSTAT (1 required per assembly)
THERMOSTAT 14586
14586

About Mercury Marine

OEM Part

14586 - Thermostat, 120 Degrees [ More info ]

Add to shopping cart $28.25
10+ in stock. Explain stock levels

Thermostat, 120F
18-3549

About Sierra Marine

OEM Match

18-3549 - Thermostat, 14586 [ More info ]

Add to shopping cart $24.99 $21.29
10+ in stock. Explain stock levels

#37 27-62386 GASKET (1 required per assembly)
27-62386 - GASKET            O - Replaced by 27-62386001
27-62386

This part has been superseded.

27-62386 - 27-62386 - GASKET O [ More info ]
Unavailable
Replaced by 27-62386001
GASKET Note: must be ordered in multiples of 4 27-62386001
27-62386001

About Mercury Marine

OEM Part

27-62386001 - Gasket - Priced Individually [ More info ]

Add to shopping cart $1.90
10+ in stock. Explain stock levels

Gasket, Thermostat
18-0182

About Sierra Marine

OEM Match

18-0182-9 - Gasket 27-62386 2-Pack [ More info ]

Add to shopping cart $3.98 $2.80
10+ in stock. Explain stock levels

#12 21-14653 2 CHECK VALVE (2 required per assembly)
21146533 21-14653  2
 

About Mercury Marine

OEM Part

21-14653 2 - Check Valve [ More info ]

Add to shopping cart $18.00
1 in stock. Explain stock levels

21-14653  3 - CHECK VALVE       O - Replaced by 21-891664
 

This part has been superseded.

21-14653 3 - 21-14653 3 - CHECK VALVE O [ More info ]
Unavailable
Replaced by 21-891664
CHECK VALVE 21-891664
 

About Mercury Marine

OEM Part

21-891664 - Check Valve [ More info ]

Add to shopping cart $43.00 $36.83
Available to order: Usually ships within 8 days. Explain stock levels

#38 27-43006 5 GASKET (1 required per assembly)
27-43006  5 - GASKET            O - Replaced by 27-43006  6
27-43006  5

This part has been superseded.

27-43006 5 - 27-43006 5 - GASKET O [ More info ]
Unavailable
Replaced by 27-43006 6
27-43006  6 - GASKET            O - Replaced by 27-43006  7
27-43006  6

This part has been superseded.

27-43006 6 - 27-43006 6 - GASKET O [ More info ]
Unavailable
Replaced by 27-43006 7
27-43006  7 - GASKET            O - Replaced by 27-43006  8
27-43006  7

This part has been superseded.

27-43006 7 - 27-43006 7 - GASKET O [ More info ]
Unavailable
Replaced by 27-43006 8
GASKET 27-43006  8
27-43006  8

About Mercury Marine

OEM Part

27-43006 8 - Gasket [ More info ]

Add to shopping cart $6.80
1 in stock. Explain stock levels

Gasket
18-0339

About Sierra Marine

OEM Match

18-0339 - Gasket, 27-43006-2 [ More info ]

Add to shopping cart $6.99 $4.77
10 in stock. Explain stock levels

#13 16-821676 1 STUD (M10) (8 required per assembly)
16-821676  1 - STUD              O - Replaced by 16-821676A 1
 

This part has been superseded.

16-821676 1 - 16-821676 1 - STUD O [ More info ]
Unavailable
Replaced by 16-821676A 1
STUD KIT 16-821676A 1
 

About Mercury Marine

OEM Part

16-821676A 1 - Stud Kit [ More info ]

Add to shopping cart $7.60
Available to order: Usually ships within 8 days. Explain stock levels

#14 12-45175 WASHER (8 required per assembly)
12-45175 - WASHER (.406 x .7 O - Replaced by 12-856774
 

This part has been superseded.

12-45175 - 12-45175 - WASHER (.406 x .7 O [ More info ]
Unavailable
Replaced by 12-856774
WASHER (.406 x .750 x . 12-856774
 

About Mercury Marine

OEM Part

12-856774 - Washer [ More info ]

Add to shopping cart $1.60
10+ in stock. Explain stock levels

#39 42885 3 COVER (1 required per assembly)
42885  3 - COVER             O - Replaced by -884297
 

This part has been superseded.

42885 3 - 42885 3 - COVER O [ More info ]
Unavailable
Replaced by -884297
884297 - COVER             O - Replaced by -8M0047619
 

This part has been superseded.

884297 - 884297 - COVER O [ More info ]
Unavailable
Replaced by -8M0047619
COVER 8M0047619
 

About Mercury Marine

OEM Part

8M0047619 - Cover [ More info ]

Add to shopping cart $28.00
Available to order: Usually ships within 8 days. Explain stock levels

#15 11-13914 NUT (8 required per assembly)
1140140 11-13914
11-13914

About Mercury Marine

OEM Part

11-13914 - Nut - Priced Individually [ More info ]

Add to shopping cart $1.00
6 in stock. Explain stock levels

NUT (M10) 11-40140
11-40140

About Mercury Marine

OEM Part

11-40140 - Nut - Priced Individually [ More info ]

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

#16 21-42623 1 CHECK VALVE (PRESS-IN) (1 required per assembly)
21426233 21-42623  1
 

About Mercury Marine

OEM Part

21-42623 1 - Check Valve [ More info ]

Add to shopping cart $3.60
8 in stock. Explain stock levels

CHECK VALVE 21-42623  3
21-42623  3

About Mercury Marine

OEM Part

21-42623 3 - Check Valve [ More info ]

Add to shopping cart $5.80
1 in stock. Explain stock levels

#40 10-817427 55 SCREW (M8 X 55) (4 required per assembly)
SCREW (M8 x 55) 10-817427 55
10-817427 55

About Mercury Marine

OEM Part

10-817427 55 - Screw [ More info ]

Add to shopping cart $2.19
Available to order: Usually ships within 8 days. Explain stock levels

#17 22-15133 FITTING (2 required per assembly) (S/N-USA-0G301750/BEL-9885504 & BELOW)
FITTING 22-15133
22-15133

About Mercury Marine

OEM Part

22-15133 - Fitting [ More info ]

Add to shopping cart $10.30
2 in stock. Explain stock levels

#41 22-32802 2 PIPE PLUG (1 required per assembly)
PLUG Pipe (.125-27) Bra 22-32802  2
22-32802  2

About Mercury Marine

OEM Part

22-32802 2 - Plug - (brass) - Priced Individually [ More info ]

Add to shopping cart $5.60
5 in stock. Explain stock levels

Pipe Plug, 1/8-27 Npt Pipe
18-4263

About Sierra Marine

OEM Match

18-4263 - Pipe Plug, 1/8-27 NPT Pi [ More info ]

Add to shopping cart $4.49 $3.35
Available to order: Usually ships within 8 days. Explain stock levels

#42 14857A11 OIL WARNING MODULE (1 required per assembly) USA-S/N-0G437999 /BEL-9926999 & BELOW
14857A11 - MODULE ASSEMBLY O O - Replaced by -14857A13
 

This part has been superseded.

14857A11 - 14857A11 - MODULE ASSEMBLY O O [ More info ]
Unavailable
Replaced by -14857A13
14857A13 - MODULE ASSEMBLY O O - Replaced by -14857A15
 

This part has been superseded.

14857A13 - 14857A13 - MODULE ASSEMBLY O O [ More info ]
Unavailable
Replaced by -14857A15
14857A15 - MODULE ASSEMBLY O O - Replaced by -14857A16
 

This part has been superseded.

14857A15 - 14857A15 - MODULE ASSEMBLY O O [ More info ]
Unavailable
Replaced by -14857A16
MODULE-OILWARNING 14857A16
14857A16

About Mercury Marine

OEM Part

14857A16 - Oil Warning Module [ More info ]

Add to shopping cart $139.09
In stock Explain stock levels

MERC OIL WARNING MODULE
144-4857-16

About CDI Electronics

OEM Match

144-4857-16 - Oil Module, 14857A16 [ More info ]

Add to shopping cart $132.23 $103.45
3 in stock. Explain stock levels

#18 824703A 1 PLUG KIT (1 required per assembly)
PLUG KIT 824703A 1
824703A 1

About Mercury Marine

OEM Part

824703A 1 - Plug Kit, NLA [ More info ]

Add to shopping cart $39.91
10+ in stock. Explain stock levels

#19 32-99130122 TUBING (1 required per assembly) (S/N-USA-0G301750/BEL-9885504 & BELOW)
32892024122 32-99130122
32-99130122

About Mercury Marine

OEM Part

32-99130122 - Tubing-20 FEET [ More info ]

Add to shopping cart $20.00
1 in stock. Explain stock levels

TUBING (240.00 Inches B 32-892024122
32-892024122

About Mercury Marine

OEM Part

32-892024122 - Tubing - 20 Feet [ More info ]

Add to shopping cart $41.90 $35.88
3 in stock. Explain stock levels

#43 14857A13 OIL WARNING MODULE (1 required per assembly) USA-S/N-0G438000 THRU 0G589999 /BEL-9927000 THRU 9973099
#20 10-821273 35 SCREW (8 X 35) (16 required per assembly)
SCREW (M8 x 35 MM) 10-821273 35
10-821273 35

About Mercury Marine

OEM Part

10-821273 35 - Screw [ More info ]

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

#44 10-40106 30 SCREW (M6 X 30) (2 required per assembly)
SCREW (M6 x 30) Stainle 10-40106 30
10-40106 30

About Mercury Marine

OEM Part

10-40106 30 - Screw [ More info ]

Add to shopping cart $5.00
Available to order: Usually ships within 8 days. Explain stock levels

#21 99162 BOOT (1 required per assembly)
99162 - BOOT              O - Replaced by -99162001
 

This part has been superseded.

99162 - 99162 - BOOT O [ More info ]
Unavailable
Replaced by -99162001
BOOT 99162001
99162001

About Mercury Marine

OEM Part

99162001 - Boot [ More info ]

Add to shopping cart $4.90
Available to order: Usually ships within 8 days. Explain stock levels

#45 16-816194 6 STUD (2 required per assembly)
168161949 16-816194  6
 

About Mercury Marine

OEM Part

16-816194 6 - STUD [ More info ]

Add to shopping cart $4.55
1 in stock. Explain stock levels

STUD (M6 x 44) 16-816194  9
 

About Mercury Marine

OEM Part

16-816194 9 - Stud [ More info ]

Add to shopping cart $8.90
Available to order: Usually ships within 8 days. Explain stock levels

#22 1035-9196A 2 COVER (1 required per assembly)
COVER 1035-9196A 2
1035-9196A 2

About Mercury Marine

OEM Part

1035-9196A 2 - Cylinder Block Cover [ More info ]

Add to shopping cart $180.66
4 in stock. Explain stock levels

#46 12-49221 WASHER (2 required per assembly)
WASHER (.187 x .500 x . 12-49221
12-49221

About Mercury Marine

OEM Part

12-49221 - Washer - Priced Individually [ More info ]

Add to shopping cart $0.82
7 in stock. Explain stock levels

Rubber Washer
18-2948

About Sierra Marine

OEM Match

18-2948-9 - Washer, 12-49221, 5PK [ More info ]

Add to shopping cart $9.21 $3.54
8 in stock. Explain stock levels

#47 11-816872 WING NUT (2 required per assembly)
WING NUT 11-816872
 

About Mercury Marine

OEM Part

11-816872 - Wing Nut [ More info ]

Add to shopping cart $2.00
Available to order: Usually ships within 8 days. Explain stock levels

#23 27-44328 4 GASKET (1 required per assembly)
GASKET 27-44328  4
27-44328  4

About Mercury Marine

OEM Part

27-44328 4 - Gasket [ More info ]

Add to shopping cart $22.30 $19.10
2 in stock. Explain stock levels

#48 22-59169 FITTING (TEE) (2 required per assembly) S/N-USA-0G301750/ BEL-9885504 & BELOW
22-59169 - FITTING           O - Replaced by 22-59169  2
 

This part has been superseded.

22-59169 - 22-59169 - FITTING O [ More info ]
Unavailable
Replaced by 22-59169 2
22-59169  2 - FITTING Tee       O - Replaced by 22-59169003
 

This part has been superseded.

22-59169 2 - 22-59169 2 - FITTING Tee O [ More info ]
Unavailable
Replaced by 22-59169003
FITTING Tee 22-59169003
 

About Mercury Marine

OEM Part

22-59169003 - Fitting - Priced Individually [ More info ]

Add to shopping cart $4.30
Available to order: Usually ships within 8 days. Explain stock levels

#25 54-814634 CLAMP (5 required per assembly)
CLAMP 54-814634
 

About Mercury Marine

OEM Part

54-814634 - Clamp [ More info ]

Add to shopping cart $3.60
Available to order: Usually ships within 8 days. Explain stock levels

#49 21-14912 2 CHECK VALVE (2 required per assembly) S/N-USA-0G301750/ BEL-9885504 & BELOW
21149125 21-14912  2
 

About Mercury Marine

OEM Part

21-14912 2 - Check Valve [ More info ]

Add to shopping cart $22.70
6 in stock. Explain stock levels

CHECK VALVE 21-14912  5
 

About Mercury Marine

OEM Part

21-14912 5 - Check Valve [ More info ]

Add to shopping cart $32.91
4 in stock. Explain stock levels

#50 821889A51 REV LIMITER (1 required per assembly)
REV LIMITER ASSY 821889A51
821889A51

About Mercury Marine

OEM Part

821889A51 - Rev Limiter Assembly [ More info ]

Add to shopping cart $73.00 $49.06
10+ in stock. Explain stock levels

MERCURY OVER REV LIMITER
144-1889-51

About CDI Electronics

OEM Match

144-1889-51 - Rev Limiter, A34, A51 [ More info ]

Add to shopping cart $85.10 $66.57
In stock Explain stock levels

#- 27-13461A90 GASKET SET (1 required per assembly)
27-13461A90 - GASKET SET        O - Replaced by 27-13461A99
 

This part has been superseded.

27-13461A90 - 27-13461A90 - GASKET SET O [ More info ]
Unavailable
Replaced by 27-13461A99
GASKET SET 27-13461A99
27-13461A99

About Mercury Marine

OEM Part

27-13461A99 - Gasket Set [ More info ]

Add to shopping cart $201.34
In stock Explain stock levels

Powerhead Gasket Set
18-4340

About Sierra Marine

OEM Match

18-4340 - Gasket Set, 27-13461A99 [ More info ]

Add to shopping cart $225.99 $192.57
In stock Explain stock levels

#- 17791A97 POWERHEAD (1 required per assembly)
17791A97 - POWERHEAD ASSEMBL O - Replaced by -17791T97
 

This part has been superseded.

17791A97 - 17791A97 - POWERHEAD ASSEMBL O [ More info ]
Unavailable
Replaced by -17791T97
17791T97 - POWERHEAD ASSEMBL O NLA
 

About Mercury Marine

OEM Part

17791T97 - POWERHEAD ASSEMBL O NLA [ More info ]
Unavailable
PH 100-125 2S -RM 17791R97
17791R97

About Mercury Marine

OEM Part

17791R97 - Powerhead 100-125 2S -rm [ More info ]

Add to shopping cart $4,544.00
Available to order: Usually ships within 8 days. Explain stock levels

#51 84-823147A 7 HARNESS-ADAPTOR-REV LIMITER (USE WHERE APPLICABLE) (1 required per assembly)
HARNESS ASSY,NLA 84-823147A 7
 

About Mercury Marine

OEM Part

84-823147A 7 - Harness Assembly, NLA [ More info ]

Add to shopping cart $9.00
4 in stock. Explain stock levels

#52 84-11149A 8 HARNESS-ADAPTOR (USE WHERE APPLICABLE) (1 required per assembly)
HARNESS ASSEMBLY Adapte 84-11149A 8
 

About Mercury Marine

OEM Part

84-11149A 8 - Harness Assembly [ More info ]

Add to shopping cart $6.80
Available to order: Usually ships within 8 days. Explain stock levels

#53 10-821300 50 SCREW (M6 X 50) (2 required per assembly)
SCREW (M6 x 50) 10-821300 50
10-821300 50

About Mercury Marine

OEM Part

10-821300 50 - Screw [ More info ]

Add to shopping cart $3.10 $2.10
10+ in stock. Explain stock levels

#53 10-821300 30 SCREW (M6 X 30) (2 required per assembly)
SCREW (M6 x 30) 10-821300 30
10-821300 30

About Mercury Marine

OEM Part

10-821300 30 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.40
3 in stock. Explain stock levels

#54 84-855212A 1 HARNESS-ADAPTOR (1 required per assembly)
HARNESS ASSEMBLY Adapto 84-855212A 1
 

About Mercury Marine

OEM Part

84-855212A 1 - Harness - Adaptor [ More info ]

Add to shopping cart $7.20
Available to order: Usually ships within 8 days. Explain stock levels