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Parts for Mercury Marine Model 40, 4 HP (Gnat 2 Cylinder) Cylinder Block & Crankcase Assembly

#1 862-5617A 4 BLOCK AND CRANKCASE ASS'Y (1 required per assembly) SERIAL #9210545 AND BELOW
CYL BLOCK-B       O - Replaced by 862-6501A 2
 

This part has been superseded.

862-5617A 4 - CYL BLOCK-B O [ More info ]
Unavailable
Replaced by 862-6501A 2
CYLINDER BLOCK-B  O - Replaced by 862-7713A 2
 

This part has been superseded.

862-6501A 2 - CYLINDER BLOCK-B O [ More info ]
Unavailable
Replaced by 862-7713A 2
CYLINDER BLOCK AS O NLA
 

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OEM Part

CYLINDER BLOCK AS O NLA [ More info ]
Unavailable
#1 862-6501A 2 BLOCK AND CRANKCASE ASS'Y (1 required per assembly) SERIAL #9210546 AND UP
#2 16-56766 STUD, POWERHEAD (1 3/8") (6 required per assembly) SERIAL #9210545 AND BELOW
STUD (.250-20/.250-28 x 16-56766
16-56766

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OEM Part

16-56766 - Stud - Priced Individually [ More info ]

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

#2 16-72809 STUD, POWERHEAD (1 5/8") (6 required per assembly) SERIAL #9210546 AND UP
STUD (.250-20/.25 O - Replaced by 16-72809  1
 

This part has been superseded.

16-72809 - STUD (.250-20/.25 O [ More info ]
Unavailable
Replaced by 16-72809 1
STUD (.250 x 1.620) 16-72809  1
 

About Mercury Marine

OEM Part

16-72809 1 - Stud [ More info ]

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

#3 17-46912 PIN, CYLINDER BLOCK (2 required per assembly)
1785500 17-46912
 

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OEM Part

17-46912 - Pin -Dowel [ More info ]

Add to shopping cart $0.50
10+ in stock. Explain stock levels

178M0084726 17-85500
 

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OEM Part

17-85500 - Pin -Dowel [ More info ]

Add to shopping cart $3.00
10+ in stock. Explain stock levels

PIN Dowel 17-8M0084726
 

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OEM Part

178M0084726 - Pin - Dowel [ More info ]

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

#5 16-20353 STUD, REED BLOCK AND CARBURETOR (2 required per assembly)
STUD Note: must be ordered in multiples of 5 16-20353
 

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OEM Part

16-20353 - Stud - Priced Individually [ More info ]

Add to shopping cart $3.00
2 in stock. Explain stock levels

#6 22-56800 PLUG, PIPE - CYLINDER BLOCK (1 required per assembly)
PLUG Pipe (.0625-27) 22-56800
22-56800

About Mercury Marine

OEM Part

22-56800 - Pipe Plug [ More info ]

Add to shopping cart $19.00
5 in stock. Explain stock levels

#7 10-70732 SCREW, CRANKCASE TO CYLINDER BLOCK (2") (2 required per assembly)
SCREW (.250-20 x 2.00) 10-70732
10-70732

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OEM Part

10-70732 - Screw - Priced Individually [ More info ]

Add to shopping cart $2.70
6 in stock. Explain stock levels

#8 10-28635 SCREW, CRANKCASE TO CYLINDER BLOCK (5/8") (2 required per assembly)
SCREW (.250-20 x .620) 10-28635
10-28635

About Mercury Marine

OEM Part

10-28635 - Screw - Priced Individually [ More info ]

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

#9 10-28667 SCREW, CRANKCASE TO CYLINDER BLOCK (1") (2 required per assembly)
SCREW (.250-20 x 1.00) 10-28667
10-28667

About Mercury Marine

OEM Part

10-28667 - Screw - Priced Individually [ More info ]

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

#10 68953A 1 LINER ASSEMBLY, CYLINDER BLOCK (1 required per assembly)
LINER ASSEMBLY    O NLA
 

About Mercury Marine

OEM Part

LINER ASSEMBLY O NLA [ More info ]
Unavailable
#12 29-71840 NEEDLE BEARING, CENTER MAIN (25 required per assembly)
NEEDLE BRG,NLA 29-71840
29-71840

About Mercury Marine

OEM Part

29-71840 - Needle Bearing - Priced Individually, NLA [ More info ]

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

#13 77178 COVER, EXHAUST MANIFOLD (1 required per assembly) SERIAL #9210545 AND BELOW
COVER      ,NLA 77178
 

About Mercury Marine

OEM Part

77178 - Cover , NLA [ More info ]

Add to shopping cart $16.50
10+ in stock. Explain stock levels

#14 27-74392 GASKET, EXHAUST MANIFOLD COVER (1 required per assembly) SERIAL #9210545 AND BELOW
GASKET,NLA 27-74392
 

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OEM Part

27-74392 - Gasket - Priced Individually [ More info ]

Add to shopping cart $6.00
10+ in stock. Explain stock levels

#15 10-32228 SCREW, EXHAUST MANIFOLD COVER (5/8") (8 required per assembly) SERIAL #9210545 AND BELOW
SCREW (#10-32 x .625) 10-32228
10-32228

About Mercury Marine

OEM Part

10-32228 - Screw - Priced Individually [ More info ]

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

#13 77585 COVER, EXHAUST MANIFOLD (1 required per assembly) SERIAL #9210546 AND UP
COVER,NLA 77585
 

About Mercury Marine

OEM Part

77585 - Cover, NLA [ More info ]

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

#14 27-77586 GASKET, EXHAUST MANIFOLD COVER (1 required per assembly) SERIAL #9210546 AND UP
Gasket,NLA 27-77586
 

About Mercury Marine

OEM Part

27-77586 - Gasket [ More info ]

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

#16 1027-5546 COVER, CYLINDER BLOCK (1 required per assembly)
COVER             O NLA
 

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OEM Part

COVER O NLA [ More info ]
Unavailable
#17 27-68942 GASKET, CYLINDER BLOCK COVER (1 required per assembly)
Gasket,NLA 27-68942
 

About Mercury Marine

OEM Part

27-68942 - Gasket [ More info ]

Add to shopping cart $3.00
10+ in stock. Explain stock levels

#19 27-68941 GASKET, BLOCK TO BOTTOM COWL (1 required per assembly)
GASKET,NLA 27-68941
27-68941

About Mercury Marine

OEM Part

27-68941 - Gasket [ More info ]

Add to shopping cart $14.00
10+ in stock. Explain stock levels

#20 11-46887 NUT, POWERHEAD STUDS (6 required per assembly)
NUT (1/4-28)      O - Replaced by 11-20184
 

This part has been superseded.

11-46887 - NUT (1/4-28) O [ More info ]
Unavailable
Replaced by 11-20184
NUT (1/4-28X7/32) 11-20184
11-20184

About Mercury Marine

OEM Part

11-20184 - Nut - Priced Individually [ More info ]

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

#22 32-54936 HOSE, BLEED (1 required per assembly)
HOSE              O - Replaced by 32-54935 76
 

This part has been superseded.

32-54936 - HOSE O [ More info ]
Unavailable
Replaced by 32-54935 76
TUBE              O - Replaced by 32-54935 79
 

This part has been superseded.

32-54935 76 - TUBE O [ More info ]
Unavailable
Replaced by 32-54935 79
HOSE              O - Replaced by 32-99387 79
 

This part has been superseded.

32-54935 79 - HOSE O [ More info ]
Unavailable
Replaced by 32-99387 79
HOSE 32-99387 79
32-99387 79

About Mercury Marine

OEM Part

32-99387 79 - Hose -27 Inch [ More info ]

Add to shopping cart $10.60
10+ in stock. Explain stock levels

#23 22-65857 FITTING ADAPTOR (1 required per assembly)
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

#24 21-64871A 2 CHECK VALVE ASSEMBLY, CRANKCASE (1 required per assembly)
VALVE ASSY-CHECK,NLA 21-64871A 2
21-64871A 2

About Mercury Marine

OEM Part

21-64871A 2 - Check Valve Assembly, NLA [ More info ]

Add to shopping cart $22.00
10+ in stock. Explain stock levels

#25 69498 REED BLOCK (1 required per assembly)
REED BLOCK,NLA 69498
 

About Mercury Marine

OEM Part

69498 - Reed Block, NLA [ More info ]

Add to shopping cart $46.00
4 in stock. Explain stock levels

#26 27-70415 GASKET, CRANKCASE TO REED BLOCK (1 required per assembly)
Gasket,NLA 27-70415
 

About Mercury Marine

OEM Part

27-70415 - Gasket [ More info ]

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

#27 34-69499A 1 REED ASSEMBLY (1 required per assembly)
REED KIT,NLA 34-69499A 1
34-69499A 1

About Mercury Marine

OEM Part

34-69499A 1 - Reed Kit, NLA [ More info ]

Add to shopping cart $11.50
4 in stock. Explain stock levels

#28 34-69500 REED STOP (2 required per assembly)
STOP Reed         O NLA
 

About Mercury Marine

OEM Part

STOP Reed O NLA [ More info ]
Unavailable
#29 10-28430 SCREW, REED AND REED STOP (1/4") (6 required per assembly)
SCREW (#6-32 x .25) 10-28430
10-28430

About Mercury Marine

OEM Part

10-28430 - Screw [ More info ]

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

#30 27-70416 GASKET, REED BLOCK TO ADAPTOR (1 required per assembly)
Gasket,NLA 27-70416
 

About Mercury Marine

OEM Part

27-70416 - Gasket - Priced Individually, NLA [ More info ]

Add to shopping cart $3.75
10+ in stock. Explain stock levels

#31 70420 ADAPTOR, CARBURETOR TO REED BLOCK (1 required per assembly)
ADAPTOR,NLA 70420
 

About Mercury Marine

OEM Part

70420 - Adaptor, NLA [ More info ]

Add to shopping cart $34.00
2 in stock. Explain stock levels

#32 70413 BRACKET, CABLE MOUNTING (1 required per assembly) (SERIAL #9210595 AND BELOW)
BRACKET           O NLA
 

About Mercury Marine

OEM Part

BRACKET O NLA [ More info ]
Unavailable
#32 79746 BRACKET, CABLE MOUNTING (1 required per assembly) (SERIAL #9210596 AND UP)
BRACKET           O NLA
 

About Mercury Marine

OEM Part

BRACKET O NLA [ More info ]
Unavailable
#33 10-69022 SCREW, BRACKET TO ADAPTOR (1/2") (2 required per assembly)
SCREW (#10-32 x .500) S 10-69022
10-69022

About Mercury Marine

OEM Part

10-69022 - Screw [ More info ]

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

#34 10-20055 SCREW, CABLE MOUNTING BRACKET (7/16") (1 required per assembly)
SCREW,NLA 10-20055
 

About Mercury Marine

OEM Part

10-20055 - Screw, NLA [ More info ]

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

#35 74777 FILLER BLOCK, REED BLOCK TO CRANKCASE (1 required per assembly) (EARLY MODELS)
FILLER BLOCK      O NLA
 

About Mercury Marine

OEM Part

FILLER BLOCK O NLA [ More info ]
Unavailable
#- 27-68938A75 GASKET SET
GASKET SET        O - Replaced by 27-77586A78
 

This part has been superseded.

27-68938A75 - GASKET SET O [ More info ]
Unavailable
Replaced by 27-77586A78
GASKET SET,NLA 27-77586A78
 

About Mercury Marine

OEM Part

27-77586A78 - Gasket Set [ More info ]

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