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Parts for Mariner 50 HP (3 Cylinder) Cylinder Block & Crankcase

#1 2801-827953A 7 CYLINDER BLOCK (1 required per assembly)
2801-827953A 7 - CYLINDER BLOCK    O - Replaced by 2801-827953T 7
 

This part has been superseded.

2801-827953A 7 - 2801-827953A 7 - CYLINDER BLOCK O [ More info ]
Unavailable
Replaced by 2801-827953T 7
CYLINDER BLOCK 2801-827953T 7
 

About Mercury Marine

OEM Part

2801-827953T 7 - Cylinder Block [ More info ]

Add to shopping cart $1,168.71
1 in stock. Explain stock levels

#2 10-817427 80 SCREW (M8 X 80) (8 required per assembly)
SCREW (M8 x 80) 10-817427 80
10-817427 80

About Mercury Marine

OEM Part

10-817427 80 - Screw [ More info ]

Add to shopping cart $3.20
Available to order: Usually ships within 8 days. Explain stock levels

#3 10-817427 30 SCREW (M8 X 30) (6 required per assembly)
SCREW (M8 x 30) 10-817427 30
10-817427 30

About Mercury Marine

OEM Part

10-817427 30 - Screw [ More info ]

Add to shopping cart $0.80
Available to order: Usually ships within 8 days. Explain stock levels

#4 21-42658 5 CHECK VALVE (1 required per assembly)
CHECK VALVE 21-42658  5
21-42658  5

About Mercury Marine

OEM Part

21-42658 5 - Check Valve [ More info ]

Add to shopping cart $11.60
Available to order: Usually ships within 8 days. Explain stock levels

#5 32-99130122 HOSE (15 IN.) (1 required per assembly)
32-99130122 - TUBING (20.00 Fee O - Replaced by 32-892024122
32-99130122

This part has been superseded.

32-99130122 - 32-99130122 - TUBING (20.00 Fee O [ More info ]
Unavailable
Replaced by 32-892024122
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
6 in stock. Explain stock levels

#6 21-42623 2 CHECK VALVE (PRESS-IN) (1 required per assembly)
CHECK VALVE 21-42623  2
21-42623  2

About Mercury Marine

OEM Part

21-42623 2 - Check Valve [ More info ]

Add to shopping cart $6.90
Available to order: Usually ships within 8 days. Explain stock levels

#7 812888A 2 CARRIER ASSEMBLY (2 required per assembly)
CARRIER ASSEMBLY 812888A 2
 

About Mercury Marine

OEM Part

812888A 2 - Carrier Assembly [ More info ]

Add to shopping cart $10.90
Available to order: Usually ships within 8 days. Explain stock levels

#8 21-42657A 4 CHECK VALVE (2 required per assembly)
CHECK VALVE 21-42657A 4
 

About Mercury Marine

OEM Part

21-42657A 4 - Check Valve Assembly [ More info ]

Add to shopping cart $6.30
Available to order: Usually ships within 8 days. Explain stock levels

#9 10-814776 ADJUSTING SCREW (1 required per assembly)
SCREW Adjusting (M6 x 5 10-814776
10-814776

About Mercury Marine

OEM Part

10-814776 - Screw [ More info ]

Add to shopping cart $2.20
Available to order: Usually ships within 8 days. Explain stock levels

#10 11-40021 2 JAM NUT (1 required per assembly)
NUT (M6) Stainless Stee 11-40021  2
11-40021  2

About Mercury Marine

OEM Part

11-40021 2 - Nut [ More info ]

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

#11 42942 CAP (1 required per assembly)
CAP 42942
42942

About Mercury Marine

OEM Part

42942 - Nylon Cap [ More info ]

Add to shopping cart $1.40
Available to order: Usually ships within 8 days. Explain stock levels

#12 17-43044 DOWEL PIN (LOCATING) (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

#13 17-812870 1 DOWEL PIN (BEARING RACE) (3 required per assembly)
17-812870  1 - PIN               O - Replaced by 17-8M0084653
 

This part has been superseded.

17-812870 1 - 17-812870 1 - PIN O [ More info ]
Unavailable
Replaced by 17-8M0084653
17-8M0084653 - PIN - DOWEL       O
 

About Mercury Marine

OEM Part

17-8M0084653 - PIN - DOWEL O [ More info ]
Unavailable
#14 27-827284 GASKET (1 required per assembly)
GASKET 27-827284
27-827284

About Mercury Marine

OEM Part

27-827284 - Gasket [ More info ]

Add to shopping cart $2.40
Available to order: Usually ships within 8 days. Explain stock levels

Thermostat Cover Gasket
18-2721

About Sierra Marine

OEM Match

18-2721 - Gasket, 27-827284 [ More info ]

Add to shopping cart $2.99 $1.85
2 in stock. Explain stock levels

#15 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

#16 22-18598 1 PIPE PLUG (3/8-18) (1 required per assembly)
PLUG Pipe (.375-18) 22-18598  1
 

About Mercury Marine

OEM Part

22-18598 1 - Pipe Plug [ More info ]

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

#17 22-32802 2 PIPE PLUG (2 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
Available to order: Usually ships within 8 days. 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 $3.24
10+ in stock. Explain stock levels

#18 22-19725 ELBOW (2 required per assembly)
ELBOW 22-19725
 

About Mercury Marine

OEM Part

22-19725 - Fitting [ More info ]

Add to shopping cart $5.10
Available to order: Usually ships within 8 days. Explain stock levels

#20 827251A 1 COVER (1 required per assembly) (S/N- 0G662183 & UP)
COVER KIT-THERMO 827251A 1
 

About Mercury Marine

OEM Part

827251A 1 - Thermostat Cover Kit [ More info ]

Add to shopping cart $10.83
Available to order: Usually ships within 8 days. Explain stock levels

#20 827251 COVER (1 required per assembly) (S/N-OG662182 & BELOW)
827251 - COVER             O - Replaced by -827251A 1
 

This part has been superseded.

827251 - 827251 - COVER O [ More info ]
Unavailable
Replaced by -827251A 1
#21 850897 LIFTING EYE (1 required per assembly) MANUAL
LIFTING EYE 850897
850897

About Mercury Marine

OEM Part

850897 - Lifting Eye [ More info ]

Add to shopping cart $7.30
Available to order: Usually ships within 8 days. Explain stock levels

#22 10-40011149 SCREW (M8 X 25) (1 required per assembly) MANUAL
SCREW (M8 x 25) Stainle 10-40011149
10-40011149

About Mercury Marine

OEM Part

10-40011149 - Screw [ More info ]

Add to shopping cart $1.90
Available to order: Usually ships within 8 days. Explain stock levels

#23 NSS SERIAL NUMBER PLUG (1 required per assembly)
NSS - NOT SOLD SEPARATE O
 

About Mercury Marine

OEM Part

NSS - NOT SOLD SEPARATE O [ More info ]
Unavailable
#25 827365 CARRIER (1 required per assembly)
827365 - CARRIER           O - Replaced by -889735
 

This part has been superseded.

827365 - 827365 - CARRIER O [ More info ]
Unavailable
Replaced by -889735
CARRIER 889735
889735

About Mercury Marine

OEM Part

889735 - Carrier [ More info ]

Add to shopping cart $4.00
6 in stock. Explain stock levels

#26 850055 THERMOSTAT (110 DEGREES) (1 required per assembly)
850055 - THERMOSTAT 43C (1 O - Replaced by -850055001
850055

This part has been superseded.

850055 - 850055 - THERMOSTAT 43C (1 O [ More info ]
Unavailable
Replaced by -850055001
THERMOSTAT 43C (110 850055001
850055001

About Mercury Marine

OEM Part

850055001 - Thermostat [ More info ]

Add to shopping cart $38.67
10 in stock. Explain stock levels

#27 26-854639 SEAL (1 required per assembly) (S/N- 0G662183 & UP)
26854639001 26-854639
 

About Mercury Marine

OEM Part

26-854639 - SEAL [ More info ]

Add to shopping cart $3.78
1 in stock. Explain stock levels

SEAL Note: must be ordered in multiples of 2 26-854639001
26-854639001

About Mercury Marine

OEM Part

26-854639001 - Seal - Priced Individually [ More info ]

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

#28 25-62701 O RING (1 required per assembly) (S/N-0G662182 & BELOW)
O-RING 25-62701
 

About Mercury Marine

OEM Part

25-62701 - O-Ring - Priced Individually [ More info ]

Add to shopping cart $2.70
10+ in stock. Explain stock levels

#29 78799 2 TEMPERATURE SENDER (1 required per assembly)
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

#30 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

#31 10-812832 1 SCREW (1 required per assembly)
10-812832  1 - SCREW (#10-16 x . O - Replaced by 10-878609
 

This part has been superseded.

10-812832 1 - 10-812832 1 - SCREW (#10-16 x . O [ More info ]
Unavailable
Replaced by 10-878609
SCREW (#10-16 x .600) 10-878609
10-878609

About Mercury Marine

OEM Part

10-878609 - Screw [ More info ]

Add to shopping cart $1.70
Available to order: Usually ships within 8 days. Explain stock levels

#32 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
6 in stock. Explain stock levels

#33 22-99664 1 ELBOW (1 required per assembly)
22-99664  1 - ELBOW             O - Replaced by 22-99664  2
 

This part has been superseded.

22-99664 1 - 22-99664 1 - ELBOW O [ More info ]
Unavailable
Replaced by 22-99664 2
FITTING Elbow 90 Degree 22-99664  2
22-99664  2

About Mercury Marine

OEM Part

22-99664 2 - Elbow [ More info ]

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

#34 12-49221 WASHER (2 required per assembly) ELECTRIC
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
10+ 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 $3.45
8 in stock. Explain stock levels

#35 12-69056 WASHER (2 required per assembly) ELECTRIC
WASHER (.255 x .620 x . 12-69056
 

About Mercury Marine

OEM Part

12-69056 - Washer [ More info ]

Add to shopping cart $1.40
Available to order: Usually ships within 8 days. Explain stock levels

#36 11-816872 WING NUT (2 required per assembly) ELECTRIC
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

#37 22-65857 FITTING (1 required per assembly) ELECTRIC
2256759 22-65857
 

About Mercury Marine

OEM Part

22-65857 - Fitting [ More info ]

Add to shopping cart $4.50
3 in stock. Explain stock levels

FITTING Barbed 22-56759
22-56759

About Mercury Marine

OEM Part

22-56759 - Fitting [ More info ]

Add to shopping cart $8.30
10 in stock. Explain stock levels

#38 812996 2 COVER (1 required per assembly) MANUAL
COVER 812996  2
 

About Mercury Marine

OEM Part

812996 2 - Cover [ More info ]

Add to shopping cart $14.50
Available to order: Usually ships within 8 days. Explain stock levels

#39 25-48462 O-RING (1 required per assembly) MANUAL
O-RING (.614 x .070) 25-48462
 

About Mercury Marine

OEM Part

25-48462 - O-Ring [ More info ]

Add to shopping cart $1.30
Available to order: Usually ships within 8 days. Explain stock levels

#40 10-40011108 SCREW (M5 X 20) (2 required per assembly) MANUAL
SCREW (M5 x 20) Stainle 10-40011108
10-40011108

About Mercury Marine

OEM Part

10-40011108 - Screw [ More info ]

Add to shopping cart $1.40
Available to order: Usually ships within 8 days. Explain stock levels

#- 852067A98 POWERHEAD (1 required per assembly)
852067A98 - POWERHEAD ASSEMBL O - Replaced by -852067T98
 

This part has been superseded.

852067A98 - 852067A98 - POWERHEAD ASSEMBL O [ More info ]
Unavailable
Replaced by -852067T98
POWERHEAD ASSEMBLY 852067T98
 

About Mercury Marine

OEM Part

852067T98 - Powerhead 40/50 3 Cyl [ More info ]

Add to shopping cart $2,928.57
Available to order: Usually ships within 8 days. Explain stock levels

#- 27-828553A97 GASKET SET (1 required per assembly)
GASKET SET 27-828553A97
27-828553A97

About Mercury Marine

OEM Part

27-828553A97 - Gasket Set [ More info ]

Add to shopping cart $66.10 $56.59
Available to order: Usually ships within 8 days. Explain stock levels