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Parts for Mariner 125 HP (4 Cylinder) Cylinder Block & Crankcase Cylinder Block & Crankcase

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#26 78799 1 TEMPERATURE SENDER (1 required per assembly) (35-1/2 IN.)(RING TERMINAL)
SENDER Temperatur 78799  1  
78799 1OEM Part 78799 1 - Temperature Sender (more info) About Mercury Marine $67.92 $67.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#1 877-9191A24 CYLINDER BLOCK (1 required per assembly)
CYLINDER BLOCK    O - Replaced by 877-9191T24  
877-9191A24This part has been superseded. CYLINDER BLOCK O - Replaced by 877-9191T24
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK 877-9191T24  
877-9191T24OEM Part 877-9191T24 - Cylinder Block (more info) About Mercury Marine $1,845.50 $1,845.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#2 10-40096 80 SCREW (M10 X 80) (10 required per assembly)
SCREW (M10 x 80) 10-40096 80 10-40096 80
10-40096 80OEM Part 10-40096 80 - Screw (more info) About Mercury Marine $3.10 $3.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#27 78799 2 TEMPERATURE SENDER (1 required per assembly) (22-1/2 IN.)(FEMALE TERMINAL)
SENDER Temperatur 78799  2 78799  2
78799 2OEM Part 78799 2 - Temperature Sender (more info) About Mercury Marine $68.75 $68.75 Add to shopping cart
1 in stock. Explain stock levels
#28 44552 RETAINER (1 required per assembly)
889733 44552  
44552OEM Part 44552 - Retainer (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
2 in stock. Explain stock levels
RETAINER 889733 889733
889733OEM Part 889733 - Retainer (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 17-67296 DOWEL PIN (BEARING RACE) (4 required per assembly)
PIN-CENTER MAIN   O - Replaced by 17-8M0036405  
17-67296This part has been superseded. PIN-CENTER MAIN O - Replaced by 17-8M0036405
(more info)
    UnavailableUnavailable Parts
PIN 17-8M0036405  
17-8M0036405OEM Part 17-8M0036405 - Pin - Center Main (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#29 10-48409 SCREW (1 required per assembly)
SCREW (#10-16 x . 10-48409 10-48409
10-48409OEM Part 10-48409 - Screw - Priced Individually (more info) About Mercury Marine $1.60 $1.60 Add to shopping cart
10+ in stock. Explain stock levels
#4 17-43044 DOWEL PIN (1 required per assembly)
PIN Dowel - Witho 17-43044  
17-43044OEM Part 17-43044 - Pin -Dowel-solid (more info) About Mercury Marine $1.60 $1.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 42884 1 COVER (TOP) (1 required per assembly)
ORD 42884 2       O NLA  
42884 1 ORD 42884 2 O NLA
(more info)
    UnavailableUnavailable Parts
#30 12-56681 WASHER (1 required per assembly)
WASHER (.203 x .5 12-56681  
12-56681OEM Part 12-56681 - Washer - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#31 86596T POPPET VALVE (1 required per assembly)
POPPET VALVE 86596T 86596T
86596TOEM Part 86596T - Poppet (more info) About Mercury Marine $6.30 $6.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 76867 COVER (BOTTOM) (1 required per assembly)
COVER 76867 76867
76867OEM Part 76867 - Cover (more info) About Mercury Marine $19.42 $19.42 Add to shopping cart
9 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
10-817427 50OEM Part 10-817427 50 - Screw (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#32 64877 DIAPHRAGM (1 required per assembly)
DIAPHRAGM         O - Replaced by -64877  1 64877
64877This part has been superseded. DIAPHRAGM O - Replaced by -64877 1
(more info)
    UnavailableUnavailable Parts
DIAPHRAGM 64877  1 64877  1
64877 1OEM Part 64877 1 - Diaphragm (more info) About Mercury Marine $6.60 $6.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#33 12-94182 WASHER (1 required per assembly)
WASHER 12-94182  
12-94182OEM Part 12-94182 - Washer (more info) About Mercury Marine $2.30 $2.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 65848 CARRIER (1 required per assembly)
CARRIER 65848 65848
65848OEM Part 65848 - Carrier (more info) About Mercury Marine $2.30 $2.30 Add to shopping cart
2 in stock. Explain stock levels
#34 10-69570 SCREW (10-16 X 3/4 IN.) (1 required per assembly)
SCREW (#10-16 x . 10-69570 10-69570
10-69570OEM Part 10-69570 - Screw (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
4 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
25-64872OEM Part 25-64872 - Grommet - Priced Individually (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
3 in stock. Explain stock levels
#10 813801A 1 CARRIER ASSEMBLY (1 required per assembly)
CARRIER ASSEMBLY 813801A 1 813801A 1
813801A 1OEM Part 813801A 1 - Carrier Assembly (more info) About Mercury Marine $12.80 $12.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#35 24-18336 SPRING (1 required per assembly)
SPRING            O - Replaced by 24-42996  
24-18336This part has been superseded. SPRING O - Replaced by 24-42996
(more info)
    UnavailableUnavailable Parts
SPRING (Stainless 24-42996 24-42996
24-42996OEM Part 24-42996 - Spring (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#36 14586 THERMOSTAT (1 required per assembly)
THERMOSTAT 14586 14586
14586OEM Part 14586 - Thermostat -120 (more info) About Mercury Marine $27.50 $27.50 Add to shopping cart
8 in stock. Explain stock levels
Thermostat, 120F 18-3549
18-3549OEM Match 18-3549 - Thermostat, 14586 (more info) About Sierra Marine $24.99 $20.53 Add to shopping cart
6 in stock. Explain stock levels
#11 21-42657A 3 CHECK VALVE (3 required per assembly)
CHECK VALVE 21-42657A 3  
21-42657A 3OEM Part 21-42657A 3 - Check Valve Assembly (more info) About Mercury Marine $4.60 $4.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 21-14653 2 CHECK VALVE (2 required per assembly)
VALVE-CHECK       O - Replaced by 21-14653  3  
21-14653 2This part has been superseded. VALVE-CHECK O - Replaced by 21-14653 3
(more info)
    UnavailableUnavailable Parts
CHECK VALVE       O - Replaced by 21-891664  
21-14653 3This part has been superseded. CHECK VALVE O - Replaced by 21-891664
(more info)
    UnavailableUnavailable Parts
CHECK VALVE 21-891664  
21-891664OEM Part 21-891664 - Check Valve (more info) About Mercury Marine $41.50 $35.54 Add to shopping cart
Available to order:
Usually ships
within 8 days
#37 27-62386 GASKET (1 required per assembly)
GASKET @4         O - Replaced by 27-62386001 27-62386
27-62386This part has been superseded. GASKET @4 O - Replaced by 27-62386001
(more info)
    UnavailableUnavailable Parts
GASKET Note: must be ordered in multiples of 4 27-62386001 27-62386001
27-62386001OEM Part 27-62386001 - Gasket - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
10+ in stock. Explain stock levels
Gasket, Thermostat 18-0182-9
18-0182-9OEM Match 18-0182-9 - Gasket 27-62386 2-Pack (more info)
Replaces OEM #0310058
About Sierra Marine $3.98 $2.71 Add to shopping cart
Available to order:
Usually ships
within 8 days
#38 27-43006 5 GASKET (1 required per assembly)
GASKET            O - Replaced by 27-43006  6 27-43006  5
27-43006 5This part has been superseded. GASKET O - Replaced by 27-43006 6
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-43006  7 27-43006  6
27-43006 6This part has been superseded. GASKET O - Replaced by 27-43006 7
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-43006  8 27-43006  7
27-43006 7This part has been superseded. GASKET O - Replaced by 27-43006 8
(more info)
    UnavailableUnavailable Parts
GASKET 27-43006  8 27-43006  8
27-43006 8OEM Part 27-43006 8 - Gasket (more info) About Mercury Marine $6.60 $6.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
Gasket 18-0339
18-0339OEM Match 18-0339 - Gasket, 27-43006-2 (more info) About Sierra Marine $6.99 $4.63 Add to shopping cart
6 in stock. Explain stock levels
#13 16-821676 1 STUD (M10) (8 required per assembly)
STUD              O - Replaced by 16-821676A 1  
16-821676 1This part has been superseded. STUD O - Replaced by 16-821676A 1
(more info)
    UnavailableUnavailable Parts
STUD KIT 16-821676A 1  
16-821676A 1OEM Part 16-821676A 1 - Stud Kit (more info) About Mercury Marine $7.30 $7.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#39 42885 3 COVER (1 required per assembly)
COVER             O - Replaced by -884297  
42885 3This part has been superseded. COVER O - Replaced by -884297
(more info)
    UnavailableUnavailable Parts
COVER             O - Replaced by -8M0047619  
884297This part has been superseded. COVER O - Replaced by -8M0047619
(more info)
    UnavailableUnavailable Parts
COVER 8M0047619  
8M0047619OEM Part 8M0047619 - Cover (more info) About Mercury Marine $27.08 $27.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 12-45175 WASHER (8 required per assembly)
WASHER @2         O - Replaced by 12-856774  
12-45175This part has been superseded. WASHER @2 O - Replaced by 12-856774
(more info)
    UnavailableUnavailable Parts
WASHER (.406 x .7 12-856774  
12-856774OEM Part 12-856774 - Washer (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
1 in stock. Explain stock levels
#15 11-13914 NUT (8 required per assembly)
1140140 11-13914 11-13914
11-13914OEM Part 11-13914 - Nut - Priced Individually (more info) About Mercury Marine $1.00 $1.00 Add to shopping cart
2 in stock. Explain stock levels
NUT (M10) 11-40140 11-40140
11-40140OEM Part 11-40140 - Nut - Priced Individually (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
10+ in stock. Explain stock levels
#16 21-42623 1 CHECK VALVE (PRESS-IN) (1 required per assembly)
21426233 21-42623  1  
21-42623 1OEM Part 21-42623 1 - Check Valve (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
10+ in stock. Explain stock levels
CHECK VALVE 21-42623  3 21-42623  3
21-42623 3OEM Part 21-42623 3 - Check Valve (more info) About Mercury Marine $5.60 $5.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#40 10-817427 55 SCREW (M8 X 55) (4 required per assembly)
SCREW (M8 x 55) 10-817427 55 10-817427 55
10-817427 55OEM Part 10-817427 55 - Screw (more info) About Mercury Marine $2.15 $2.15 Add to shopping cart
Available to order:
Usually ships
within 8 days
#17 22-15133 FITTING (2 required per assembly) (S/N-USA-0G301750/BEL-9885504 & BELOW)
FITTING 22-15133 22-15133
22-15133OEM Part 22-15133 - Fitting (more info) About Mercury Marine $10.00 $6.75 Add to shopping cart
3 in stock. Explain stock levels
#41 22-32802 2 PIPE PLUG (1 required per assembly)
PLUG Pipe (.125-2 22-32802  2 22-32802 2
22-32802 2OEM Part 22-32802 2 - Plug - (brass) - Priced Individually (more info) About Mercury Marine $5.50 $5.50 Add to shopping cart
8 in stock. Explain stock levels
Pipe Plug, 1/8-27 Npt Pipe 18-4263
18-4263OEM Match 18-4263 - Pipe Plug, 1/8-27 NPT Pi (more info) About Sierra Marine $4.49 $3.24 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 824703A 1 PLUG KIT (1 required per assembly)
PLUG KIT 824703A 1 824703A 1
824703A 1OEM Part 824703A 1 - Plug Kit, NLA (more info) About Mercury Marine $38.58 $38.58 Add to shopping cart
10+ in stock. Explain stock levels
#42 14857A11 OIL WARNING MODULE (1 required per assembly) USA-S/N-0G437999 /BEL-9926999 & BELOW
MODULE-OIL WARNIG O - Replaced by -14857A13  
14857A11This part has been superseded. MODULE-OIL WARNIG O - Replaced by -14857A13
(more info)
    UnavailableUnavailable Parts
MODULE-OIL WARNIG O - Replaced by -14857A15  
14857A13This part has been superseded. MODULE-OIL WARNIG O - Replaced by -14857A15
(more info)
    UnavailableUnavailable Parts
MODULE-OIL WARNIG O - Replaced by -14857A16  
14857A15This part has been superseded. MODULE-OIL WARNIG O - Replaced by -14857A16
(more info)
    UnavailableUnavailable Parts
MODULE-OILWARNING 14857A16 14857A16
14857A16OEM Part 14857A16 - Oil Warning Module (more info) About Mercury Marine $134.92 $134.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
MERC OIL WARNING MODULE 144-4857-16
144-4857-16OEM Match 144-4857-16 - Oil Module, 14857A16 (more info) About CDI Electronics $132.23 $100.92 Add to shopping cart
1 in stock. Explain stock levels
#43 14857A13 OIL WARNING MODULE (1 required per assembly) USA-S/N-0G438000 THRU 0G589999 /BEL-9927000 THRU 9973099
#19 32-99130122 TUBING (1 required per assembly) (S/N-USA-0G301750/BEL-9885504 & BELOW)
TUBING-20 FEET    O - Replaced by 32-892024122 32-99130122
32-99130122This part has been superseded. TUBING-20 FEET O - Replaced by 32-892024122
(more info)
    UnavailableUnavailable Parts
TUBING (240.00 In 32-892024122 32-892024122
32-892024122OEM Part 32-892024122 - Tubing - 20 Feet (more info) About Mercury Marine $40.90 $35.02 Add to shopping cart
Available to order:
Usually ships
within 8 days
#20 10-821273 35 SCREW (8 X 35) (16 required per assembly)
SCREW (M8 x 35 MM 10-821273 35 10-821273 35
10-821273 35OEM Part 10-821273 35 - Screw (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
9 in stock. Explain stock levels
#44 10-40106 30 SCREW (M6 X 30) (2 required per assembly)
SCREW (M6 x 30) S 10-40106 30 10-40106 30
10-40106 30OEM Part 10-40106 30 - Screw (more info) About Mercury Marine $4.80 $4.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 99162 BOOT (1 required per assembly)
BOOT              O - Replaced by -99162001  
99162This part has been superseded. BOOT O - Replaced by -99162001
(more info)
    UnavailableUnavailable Parts
BOOT 99162001 99162001
99162001OEM Part 99162001 - Boot (more info) About Mercury Marine $4.70 $4.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#45 16-816194 6 STUD (2 required per assembly)
STUD              O - Replaced by 16-816194  9  
16-816194 6This part has been superseded. STUD O - Replaced by 16-816194 9
(more info)
    UnavailableUnavailable Parts
STUD (M6 x 44) 16-816194  9  
16-816194 9OEM Part 16-816194 9 - Stud (more info) About Mercury Marine $8.60 $8.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#22 1035-9196A 2 COVER (1 required per assembly)
COVER 1035-9196A 2 1035-9196A 2
1035-9196A 2OEM Part 1035-9196A 2 - Cylinder Block Cover (more info) About Mercury Marine $174.58 $174.58 Add to shopping cart
4 in stock. Explain stock levels
#46 12-49221 WASHER (2 required per assembly)
WASHER (.187 x .5 12-49221 12-49221
12-49221OEM Part 12-49221 - Washer - Priced Individually (more info) About Mercury Marine $0.82 $0.82 Add to shopping cart
10+ in stock. Explain stock levels
Rubber Washer 18-2948-9
18-2948-9OEM Match 18-2948-9 - Washer, 12-49221, 5PK (more info) About Sierra Marine $9.21 $3.45 Add to shopping cart
2 in stock. Explain stock levels
#23 27-44328 4 GASKET (1 required per assembly)
GASKET 27-44328  4 27-44328  4
27-44328 4OEM Part 27-44328 4 - Gasket (more info) About Mercury Marine $21.80 $18.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#47 11-816872 WING NUT (2 required per assembly)
WING NUT 11-816872  
11-816872OEM Part 11-816872 - Wing Nut (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#48 22-59169 FITTING (TEE) (2 required per assembly) S/N-USA-0G301750/ BEL-9885504 & BELOW
FITTING           O - Replaced by 22-59169  2  
22-59169This part has been superseded. FITTING O - Replaced by 22-59169 2
(more info)
    UnavailableUnavailable Parts
FITTING           O - Replaced by 22-59169003  
22-59169 2This part has been superseded. FITTING O - Replaced by 22-59169003
(more info)
    UnavailableUnavailable Parts
FITTING Tee 22-59169003  
22-59169003OEM Part 22-59169003 - Fitting - Priced Individually (more info) About Mercury Marine $4.20 $4.20 Add to shopping cart
2 in stock. Explain stock levels
#49 21-14912 2 CHECK VALVE (2 required per assembly) S/N-USA-0G301750/ BEL-9885504 & BELOW
VALVE-CHECK       O - Replaced by 21-14912  5  
21-14912 2This part has been superseded. VALVE-CHECK O - Replaced by 21-14912 5
(more info)
    UnavailableUnavailable Parts
CHECK VALVE 21-14912  5  
21-14912 5OEM Part 21-14912 5 - Check Valve (more info) About Mercury Marine $31.83 $31.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 54-814634 CLAMP (5 required per assembly)
CLAMP 54-814634  
54-814634OEM Part 54-814634 - Clamp (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 27-13461A90 GASKET SET (1 required per assembly)
GASKET SET        O - Replaced by 27-13461A99  
27-13461A90This part has been superseded. GASKET SET O - Replaced by 27-13461A99
(more info)
    UnavailableUnavailable Parts
GASKET SET 27-13461A99 27-13461A99
27-13461A99OEM Part 27-13461A99 - Gasket Set (more info) About Mercury Marine $196.42 $196.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
Powerhead Gasket Set 18-4340
18-4340OEM Match 18-4340 - Gasket Set, 27-13461A99 (more info) About Sierra Marine $225.99 $182.19 Add to shopping cart
2 in stock. Explain stock levels
#50 821889A51 REV LIMITER (1 required per assembly)
REV LIMITER ASSY 821889A51 821889A51
821889A51OEM Part 821889A51 - Rev Limiter Assembly (more info) About Mercury Marine $71.25 $71.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
MERCURY OVER REV LIMITER 144-1889-51
144-1889-51OEM Match 144-1889-51 - Rev Limiter, A34, A51 (more info) About CDI Electronics $85.10 $64.01 Add to shopping cart
1 in stock. Explain stock levels
#51 84-823147A 7 HARNESS-ADAPTOR-REV LIMITER (USE WHERE APPLICABLE) (1 required per assembly)
HARNESS ASSY,NLA 84-823147A 7  
84-823147A 7OEM Part 84-823147A 7 - Harness Assembly, NLA (more info) About Mercury Marine $9.00 $9.00 Add to shopping cart
4 in stock. Explain stock levels
#- 17791A97 POWERHEAD (1 required per assembly)
POWERHEAD         O - Replaced by -17791T97  
17791A97This part has been superseded. POWERHEAD O - Replaced by -17791T97
(more info)
    UnavailableUnavailable Parts
ORD 17791R97      O NLA  
17791T97 ORD 17791R97 O NLA
(more info)
    UnavailableUnavailable Parts
PH 100-125 2S -RM 17791R97 17791R97
17791R97OEM Part 17791R97 - Powerhead 100-125 2S -rm (more info) About Mercury Marine $4,368.75 $4,368.75 Add to shopping cart
Available to order:
Usually ships
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#52 84-11149A 8 HARNESS-ADAPTOR (USE WHERE APPLICABLE) (1 required per assembly)
HARNESS ASSEMBLY 84-11149A 8  
84-11149A 8OEM Part 84-11149A 8 - Harness Assembly (more info) About Mercury Marine $6.80 $6.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#53 10-821300 50 SCREW (M6 X 50) (2 required per assembly)
SCREW (M6 x 50) 10-821300 50 10-821300 50
10-821300 50OEM Part 10-821300 50 - Screw (more info) About Mercury Marine $3.00 $2.03 Add to shopping cart
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
10-821300 30OEM Part 10-821300 30 - Screw - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
3 in stock. Explain stock levels
#54 84-855212A 1 HARNESS-ADAPTOR (1 required per assembly)
HARNESS ASSEMBLY 84-855212A 1  
84-855212A 1OEM Part 84-855212A 1 - Harness - Adaptor (more info) About Mercury Marine $7.00 $7.00 Add to shopping cart
Available to order:
Usually ships
within 8 days