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Parts for Mercury Marine Model 850 85 HP (4 Cylinder) Cylinder Block & Crankcase Assembly

#1 867-5997A 3 CYLINDER BLOCK AND CRANKCASE ASSEMBLY (1 required per assembly)
867-5997A 3 - CYLINDER BLOCK    O - Replaced by 871-6591A 3
 

This part has been superseded.

867-5997A 3 - 867-5997A 3 - CYLINDER BLOCK O [ More info ]
Unavailable
Replaced by 871-6591A 3
871-6591A 3 - CYLINDER BLOCK    O - Replaced by 871-7749A 3
 

This part has been superseded.

871-6591A 3 - 871-6591A 3 - CYLINDER BLOCK O [ More info ]
Unavailable
Replaced by 871-7749A 3
871-7749A 3 - CYLINDER BLOCK AS O - Replaced by 871-8338A 3
871-7749A 3

This part has been superseded.

871-7749A 3 - 871-7749A 3 - CYLINDER BLOCK AS O [ More info ]
Unavailable
Replaced by 871-8338A 3
871-8338A 3 - CYLINDER BLOCK AS O NLA
 

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OEM Part

871-8338A 3 - CYLINDER BLOCK AS O NLA [ More info ]
Unavailable
#2 27-53650 GASKET, CRANKCASE TO CYLINDER BLOCK (2 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-53650
27-53650

About Mercury Marine

OEM Part

27-53650 - Gasket - Priced Individually [ More info ]

Add to shopping cart $2.30
10+ in stock. Explain stock levels

#3 56029 COVER, STARTER MOTOR (UPPER) (1 required per assembly)
56029 - COVER             O - Replaced by -56029T
 

This part has been superseded.

56029 - 56029 - COVER O [ More info ]
Unavailable
Replaced by -56029T
COVER,NLA 56029T
56029T

About Mercury Marine

OEM Part

56029T - Cover, NLA [ More info ]

Add to shopping cart $30.00
10+ in stock. Explain stock levels

#4 10-31984 SCREW, COVER TO CRANKCASE (1 3/8") (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
8 in stock. Explain stock levels

#4 10-35385 SCREW, COVER TO CRANKCASE (1 3/4") (1 required per assembly)
SCREW (.312-18 x 1-3/4) 10-35385
10-35385

About Mercury Marine

OEM Part

10-35385 - Screw [ More info ]

Add to shopping cart $1.80
10+ in stock. Explain stock levels

#5 13-26993 LOCKWASHER, COVER SCREW (4 required per assembly)
LOCKWASHER (.312) 13-26993
 

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OEM Part

13-26993 - LockWasher - Priced Individually [ More info ]

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

#6 76867 COVER, STARTER MOTOR (LOWER) (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

#7 10-39767 SCREW, COVER TO CRANKCASE (1 7/8") (1 required per assembly)
10-39767 - SCREW             O - Replaced by 10-73279
 

This part has been superseded.

10-39767 - 10-39767 - SCREW O [ More info ]
Unavailable
Replaced by 10-73279
SCREW,NLA 10-73279
 

About Mercury Marine

OEM Part

10-73279 - Screw, NLA [ More info ]

Add to shopping cart $9.00
10+ in stock. Explain stock levels

#7 10-73658 SCREW, COVER TO CRANKCASE (5 1/2") (1 required per assembly)
SCREW,NLA 10-73658
 

About Mercury Marine

OEM Part

10-73658 - Screw, NLA [ More info ]

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

#8 16-64281 STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 7/8") (2 required per assembly)
STUD,NLA 16-64281
 

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OEM Part

16-64281 - Stud, NLA [ More info ]

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

#9 17-20033 PIN, DOWEL - CRANKCASE TO CYLINDER BLOCK (2 required per assembly)
17-20033 - PIN Dowel         O - Replaced by 17-43044
 

This part has been superseded.

17-20033 - 17-20033 - PIN Dowel O [ More info ]
Unavailable
Replaced by 17-43044
PIN Dowel - Without Hol 17-43044
 

About Mercury Marine

OEM Part

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

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

#10 17-63779 PIN, DOWEL - CYLINDER BLOCK TO MAIN BEARING (2 required per assembly)
PIN Dowel (.250 x .625) 17-63779
 

About Mercury Marine

OEM Part

17-63779 - Pin -Dowel - Priced Individually [ More info ]

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

#11 66517 RESTRICTOR, CRANKCASE BLEED (3 required per assembly)
RESTRICTOR Note: must be ordered in multiples of 5 66517
66517

About Mercury Marine

OEM Part

66517 - Bleed Restrictor - Priced Individually [ More info ]

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

#12 16-64282 STUD, CYLINDER BLOCK TO EXHAUST EXTENSION PLATE (4") (6 required per assembly)
STUD,NLA 16-64282
 

About Mercury Marine

OEM Part

16-64282 - Stud, NLA [ More info ]

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

#13 10-57841 SCREW, CRANKCASE TO CYLINDER BLOCK (2 3/4") (2 required per assembly)
SCREW,NLA 10-57841
 

About Mercury Marine

OEM Part

10-57841 - Screw, NLA [ More info ]

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

#13 10-53016 SCREW, CRANKCASE TO CYLINDER BLOCK (1 1/4") (2 required per assembly)
10-53016 - SCREW (1.25)      O - Replaced by 10-74824
 

This part has been superseded.

10-53016 - 10-53016 - SCREW (1.25) O [ More info ]
Unavailable
Replaced by 10-74824
SCREW (.312-18 x 1.250) 10-74824
10-74824

About Mercury Marine

OEM Part

10-74824 - Screw - Priced Individually [ More info ]

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

#14 10-73657 SCREW, CRANKCASE TO CYLINDER BLOCK (1 1/2") (15 required per assembly)
SCREW (.312-18 x 1.50) 10-73657
10-73657

About Mercury Marine

OEM Part

10-73657 - Screw - Priced Individually [ More info ]

Add to shopping cart $2.40 $1.62
10+ in stock. Explain stock levels

#15 10-20359 SCREW, CENTER MAIN BEARING LOCKING (1") (1 required per assembly)
SCREW (.375-16 x 1.00) 10-20359
10-20359

About Mercury Marine

OEM Part

10-20359 - Screw - Priced Individually [ More info ]

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

#16 14-20091 TAB WASHER, BEARING LOCKING SCREW (1 required per assembly)
TAB WASHER 14-20091
 

About Mercury Marine

OEM Part

14-20091 - Tab Washer - Priced Individually [ More info ]

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

#17 22-65350A 2 CHECK VALVE ASSEMBLY, BLEED HOSE - TOP (1 required per assembly)
22-65350A 2 - CONNECTOR ASSY    O - Replaced by 21-77560
 

This part has been superseded.

22-65350A 2 - 22-65350A 2 - CONNECTOR ASSY O [ More info ]
Unavailable
Replaced by 21-77560
21-77560 - CHECK VALVE       O - Replaced by 21-42866
 

This part has been superseded.

21-77560 - 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

#18 21-56011A 2 CHECK VALVE ASSEMBLY (1 required per assembly)
2142657A1 21-56011A 2
 

About Mercury Marine

OEM Part

21-56011A 2 - Check Valve Assembly [ More info ]

Add to shopping cart $1.20
9 in stock. Explain stock levels

2142657A3 21-42657A 1
 

About Mercury Marine

OEM Part

21-42657A 1 - Check Valve Assembly [ More info ]

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

CHECK VALVE 21-42657A 3
 

About Mercury Marine

OEM Part

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

Add to shopping cart $4.80
Available to order: Usually ships within 8 days. Explain stock levels

#19 32-54936 HOSE, CYLINDER BLEED (15 1/2") (1 required per assembly)
32-54936 - HOSE              O - Replaced by 32-54935 76
 

This part has been superseded.

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

This part has been superseded.

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

This part has been superseded.

32-54935 79 - 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

#20 22-65670A 1 CHECK VALVE ASSEMBLY, BLEED HOSE - BOTTOM (1 required per assembly)
22-65670A 1 - CONNECTOR ASSY    O - Replaced by 21-77561
 

This part has been superseded.

22-65670A 1 - 22-65670A 1 - CONNECTOR ASSY O [ More info ]
Unavailable
Replaced by 21-77561
21-77561 - FITTING ASSEMBLY  O - Replaced by 21-42867
 

This part has been superseded.

21-77561 - 21-77561 - FITTING ASSEMBLY O [ More info ]
Unavailable
Replaced by 21-42867
21-42867 - CHECK VALVE       O - Replaced by 21-42867  1
 

This part has been superseded.

21-42867 - 21-42867 - CHECK VALVE O [ More info ]
Unavailable
Replaced by 21-42867 1
VALVE-CHECK,NLA 21-42867  1
 

About Mercury Marine

OEM Part

21-42867 1 - Check Valve, NLA [ More info ]

Add to shopping cart $23.50
10+ in stock. Explain stock levels

#21 22-20781 ELBOW, BALANCE HOSE TO CYLINDER BLOCK - UPPER (1 required per assembly)
ELBOW,NLA 22-20781
 

About Mercury Marine

OEM Part

22-20781 - Elbow, NLA [ More info ]

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

#22 32-34395A 1 HOSE ASSEMBLY, BALANCE (6 1/4") (1 required per assembly)
32-34395A 1 - HOSE              O - Replaced by 32-99127109
 

This part has been superseded.

32-34395A 1 - 32-34395A 1 - HOSE O [ More info ]
Unavailable
Replaced by 32-99127109
32-99127109 - LINE (57.00 Inche O - Replaced by 32-830756109
32-99127109

This part has been superseded.

32-99127109 - 32-99127109 - LINE (57.00 Inche O [ More info ]
Unavailable
Replaced by 32-830756109
32-830756109 - HOSE (57.00 Inche O - Replaced by 32-8M0047428
32-830756109

This part has been superseded.

32-830756109 - 32-830756109 - HOSE (57.00 Inche O [ More info ]
Unavailable
Replaced by 32-8M0047428
32-8M0047428 - HOSE (57.00 Inche  - Replaced by 32-8M0108355
32-8M0047428

This part has been superseded.

32-8M0047428 - 32-8M0047428 - HOSE (57.00 Inche [ More info ]
Unavailable
Replaced by 32-8M0108355
HOSE (57 Inches Bulk) 32-8M0108355
32-8M0108355

About Mercury Marine

OEM Part

32-8M0108355 - Hose, 57 Inch [ More info ]

Add to shopping cart $45.00 $38.54
1 in stock. Explain stock levels

#23 22-65348 TEE, BALANCE HOSE TO CYLINDER BLOCK - LOWER (1 required per assembly)
22130342 22-65348
 

About Mercury Marine

OEM Part

22-65348 - Tee [ More info ]

Add to shopping cart $8.00
5 in stock. Explain stock levels

FITTING,NLA 22-13034  2
 

About Mercury Marine

OEM Part

22-13034 2 - Fitting, NLA [ More info ]

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

#25 22-65857 FITTING, AIR INLET COVER (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