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Parts for Mercury Marine 40 HP (2 Cylinder) Cylinder Block & Thermostat

#1 851-7940A 2 CYLINDER BLOCK ASSEMBLY (1 required per assembly)
CYLINDER BLOCK AS O - Replaced by 851-7940A 6
 

This part has been superseded.

851-7940A 2 - CYLINDER BLOCK AS O [ More info ]
Unavailable
Replaced by 851-7940A 6
CYLINDER BLOCK/CR O NLA
 

About Mercury Marine

OEM Part

CYLINDER BLOCK/CR O NLA [ More info ]
Unavailable
#2 66843 BRACKET, COIL MOUNTING (1 required per assembly)
BRACKET           O - Replaced by -66843T
 

This part has been superseded.

66843 - BRACKET O [ More info ]
Unavailable
Replaced by -66843T
BRACKET,NLA 66843T
 

About Mercury Marine

OEM Part

66843T - Bracket, NLA [ More info ]

Add to shopping cart $44.00
1 in stock. Explain stock levels

#3 66844 COVER, DIAPHRAGM (1 required per assembly) WITH THERMOSTAT
COVER             O - Replaced by -99436A 1
 

This part has been superseded.

66844 - COVER O [ More info ]
Unavailable
Replaced by -99436A 1
COVER ASSY,NLA 99436A 1
 

About Mercury Marine

OEM Part

99436A 1 - Cover Assembly, NLA [ More info ]

Add to shopping cart $10.00
10+ in stock. Explain stock levels

#4 64877 DIAPHRAGM, POPPET VALVE (1 required per assembly) WITH THERMOSTAT
DIAPHRAGM         O - Replaced by -64877  1
64877

This part has been superseded.

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
9 in stock. Explain stock levels

#5 12-76451 WASHER, DIAPHRAGM (1 required per assembly) WITH THERMOSTAT
WASHER Note: must be ordered in multiples of 2 12-76451
12-76451

About Mercury Marine

OEM Part

12-76451 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.90
7 in stock. Explain stock levels

#6 10-69570 SCREW, (#10-16 x .750), WASHER AND DIAPHRAGM (1 required per assembly) WITH THERMOSTAT
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
8 in stock. Explain stock levels

#7 75692 THERMOSTAT (1 required per assembly) WITH THERMOSTAT
THERMOSTAT 75692
75692

About Mercury Marine

OEM Part

75692 - Thermostat, 143 Degrees [ More info ]

Add to shopping cart $15.42
10+ in stock. Explain stock levels

Thermostat
18-3553

About Sierra Marine

OEM Match

18-3553 - Thermostat, 75692 [ More info ]

Add to shopping cart $14.99 $13.58
10+ in stock. Explain stock levels

#8 27-62386 GASKET, THERMOSTAT (1 required per assembly) WITH THERMOSTAT
GASKET            O - Replaced by 27-62386001
27-62386

This part has been superseded.

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 $2.71
10+ in stock. Explain stock levels

#9 86596 POPPET VALVE, RELIEF VALVE (1 required per assembly) WITH THERMOSTAT
POPPET VALVE 86596
86596

About Mercury Marine

OEM Part

86596 - Poppet Valve [ More info ]

Add to shopping cart $8.10
2 in stock. Explain stock levels

#10 24-66852 SPRING, COMPRESSION (1 required per assembly) WITH THERMOSTAT
SPRING,NLA 24-66852
 

About Mercury Marine

OEM Part

24-66852 - Spring, NLA [ More info ]

Add to shopping cart $18.75
10+ in stock. Explain stock levels

#11 65848 CARRIER, POPPET VALVE (1 required per assembly) WITH THERMOSTAT
CARRIER 65848
65848

About Mercury Marine

OEM Part

65848 - Carrier [ More info ]

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

#12 25-64872 GROMMET, POPPET VALVE (1 required per assembly) WITH THERMOSTAT
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
2 in stock. Explain stock levels

#13 99436A 1 COVER ASSEMBLY, COIL BRACKET (1 required per assembly) W/O THERMOSTAT
#14 25-64067 O-RING, COVER (1 required per assembly) W/O THERMOSTAT
25823683 25-64067
25-64067

About Mercury Marine

OEM Part

25-64067 - O-Ring - Priced Individually [ More info ]

Add to shopping cart $1.65
10+ in stock. Explain stock levels

O-RING (1.989 x .070) 25-823683
25-823683

About Mercury Marine

OEM Part

25-823683 - O-Ring [ More info ]

Add to shopping cart $2.20
2 in stock. Explain stock levels

O-Ring
18-7414

About Sierra Marine

OEM Match

18-7414-9 - O-Ring (PK5) 25-64067 [ More info ]

Add to shopping cart $12.45
1 in stock. Explain stock levels

#15 10-31984 SCREW, (.312-18 x 1.375) (1 required per assembly)
SCREW (.312-18 x 1.375) 10-31984
10-31984

About Mercury Marine

OEM Part

10-31984 - Screw - Priced Individually [ More info ]

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

#16 10-88760 SCREW, (.312-18 x 1.250) (1 required per assembly)
SCREW,NLA 10-88760
 

About Mercury Marine

OEM Part

10-88760 - Screw, NLA [ More info ]

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

#17 10-58414 SCREW (2-1/2") (1 required per assembly)
SCREW,NLA 10-58414
 

About Mercury Marine

OEM Part

10-58414 - Screw, NLA [ More info ]

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

#18 13-26993 LOCKWASHER, (.312), COIL MOUNTING BRACKET SCREW (3 required per assembly)
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

#19 25-39597 GROMMET, COIL MOUNTING BRACKET (1 required per assembly)
GROMMET,NLA 25-39597
 

About Mercury Marine

OEM Part

25-39597 - Grommet, NLA [ More info ]

Add to shopping cart $7.00
10+ in stock. Explain stock levels

#20 27-66847 GASKET, COIL MOUNTING BRACKET TO BLOCK (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-66847
27-66847

About Mercury Marine

OEM Part

27-66847 - Gasket - Priced Individually [ More info ]

Add to shopping cart $3.90
Available to order: Usually ships within 8 days. Explain stock levels

#21 32-99387 79 HOSE, CYLINDER BLEED (8") (1 required per assembly)
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

#22 21-77560 CHECK VALVE, CYLINDER BLEED (TOP) (1 required per assembly)
CHECK VALVE       O - Replaced by 21-42866
 

This part has been superseded.

21-77560 - CHECK VALVE O [ More info ]
Unavailable
Replaced by 21-42866
CHECK VALVE 21-42866
21-42866

About Mercury Marine

OEM Part

21-42866 - Check Valve [ More info ]

Add to shopping cart $44.33
10+ in stock. Explain stock levels

#23 21-77207 FITTING, CYLINDER BLEED (BOTTOM) (1 required per assembly)
FITTING           O - Replaced by 21-42863
 

This part has been superseded.

21-77207 - FITTING O [ More info ]
Unavailable
Replaced by 21-42863
CHECK VALVE,NLA 21-42863
21-42863

About Mercury Marine

OEM Part

21-42863 - Check Valve, NLA [ More info ]

Add to shopping cart $35.00
10+ in stock. Explain stock levels

#24 58124A17 SWITCH ASSEMBLY, MERCURY (1 required per assembly) SN# USA-5823917/Australia-8070639/Belgium-9298955/Canada-7169337 & Below
SWITCH ASSY,NLA 58124A17
58124A17

About Mercury Marine

OEM Part

58124A17 - Mercury Switch Assembly, NLA [ More info ]

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

#24 58124A24 SWITCH ASSEMBLY, MERCURY (1 required per assembly) SN# USA-5823918/Australia-8070640/Belgium-9298956/Canada-7169338 & Up
SWITCH ASSEMBLY   O - Replaced by -58124A27
 

This part has been superseded.

58124A24 - SWITCH ASSEMBLY O [ More info ]
Unavailable
Replaced by -58124A27
SWITCH ASSY,NLA 58124A27
 

About Mercury Marine

OEM Part

58124A27 - Switch Assembly, NLA [ More info ]

Add to shopping cart $40.00
10+ in stock. Explain stock levels

#25 10-48409 SCREW, (#10-16 x .625) Stainless Steel (1 required per assembly)
SCREW (#10-16 x .625) 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

#26 76184 INDICATOR, TIMING (1 required per assembly) ELECTRIC
INDICATOR,NLA 76184
 

About Mercury Marine

OEM Part

76184 - Indicator, NLA [ More info ]

Add to shopping cart $11.25
10+ in stock. Explain stock levels

#27 10-25299 SCREW, (.312-18 x .75), INDICATOR ATTACHING (1 required per assembly) ELECTRIC
SCREW (.312-18 x .75) 10-25299
10-25299

About Mercury Marine

OEM Part

10-25299 - Screw - Priced Individually [ More info ]

Add to shopping cart $0.30
7 in stock. Explain stock levels

#28 12-20084 WASHER, (.328 x .562 x .062), INDICATOR ATTACHING SCREW (1 required per assembly) ELECTRIC
WASHER (.328 x .562 x . 12-20084
12-20084

About Mercury Marine

OEM Part

12-20084 - Washer - Priced Individually [ More info ]

Add to shopping cart $2.09
10+ in stock. Explain stock levels

#29 17-29908 PIN, INDICATOR LOCATING (1 required per assembly) ELECTRIC
PIN 17-29908
 

About Mercury Marine

OEM Part

17-29908 - Pin -roll - Priced Individually [ More info ]

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

#- 27-78028A78 GASKET SET (1 required per assembly)
GASKET SET 27-78028A78
27-78028A78

About Mercury Marine

OEM Part

27-78028A78 - Gasket Set [ More info ]

Add to shopping cart $55.25
Available to order: Usually ships within 8 days. Explain stock levels

Powerhead Gasket Set
18-4355

About Sierra Marine

OEM Match

18-4355 - Gasket Set, 27-78028A78 [ More info ]

Add to shopping cart $59.99 $47.54
1 in stock. Explain stock levels