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Parts for Mariner 20C (Thru Prop. Exhaust) Crankcase & Cylinder Head

#1 870-8373M CRANKCASE ASS'Y (1 required per assembly)
CYLINDER BLOCK    O - Replaced by 870-9359M
 

This part has been superseded.

870-8373M - CYLINDER BLOCK O [ More info ]
Unavailable
Replaced by 870-9359M
CRANKCASE ASSEMBL O NLA
 

About Mercury Marine

OEM Part

CRANKCASE ASSEMBL O NLA [ More info ]
Unavailable
#2 22-80122M FITTING, CRANKCASE DRAIN (1 required per assembly)
FITTING Note: must be ordered in multiples of 2,NLA 22-80122M
 

About Mercury Marine

OEM Part

22-80122M - Fitting - Priced Individually, NLA [ More info ]

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

#3 21-80727M CHECK VALVE ASS'Y (1 required per assembly)
CHECK VALVE,NLA 21-80727M
21-80727M

About Mercury Marine

OEM Part

21-80727M - Check Valve, NLA [ More info ]

Add to shopping cart $18.00
10+ in stock. Explain stock levels

#4 21-80107M (1 required per assembly)
CHECK VALVE,NLA 21-80107M
 

About Mercury Marine

OEM Part

21-80107M - Check Valve, NLA [ More info ]

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

#5 10-41884M BOLT W/WASHER (8 required per assembly) SERIAL 00005811-09999999
108M0101617 10-41884M
10-41884M

About Mercury Marine

OEM Part

10-41884M - Bolt [ More info ]

Add to shopping cart $9.40
Available to order: Usually ships within 8 days. Explain stock levels

BOLT              O
 

About Mercury Marine

OEM Part

BOLT O [ More info ]
Unavailable
#5 10-82408M BOLT (8 required per assembly) SERIAL 00000000-00005810
BOLT,NLA 10-82408M
 

About Mercury Marine

OEM Part

10-82408M - Bolt, NLA [ More info ]

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

#6 10-41885M BOLT W/WASHER (2 required per assembly) SERIAL 00005811-09999999
BOLT,NLA 10-41885M
 

About Mercury Marine

OEM Part

10-41885M - Bolt, NLA [ More info ]

Add to shopping cart $7.50
10+ in stock. Explain stock levels

#6 10-82406M BOLT (2 required per assembly) SERIAL 00000000-00005810
BOLT              O NLA
 

About Mercury Marine

OEM Part

BOLT O NLA [ More info ]
Unavailable
#7 12-80564M WASHER (21 required per assembly) SERIAL 00000000-00005810
WASHER,NLA 12-80564M
 

About Mercury Marine

OEM Part

12-80564M - Washer, NLA [ More info ]

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

#8 10-95209M SCREW (1 required per assembly) SERIAL 00008216-09999999
SCREW,NLA 10-95209M
 

About Mercury Marine

OEM Part

10-95209M - Screw, NLA [ More info ]

Add to shopping cart $1.50
10+ in stock. Explain stock levels

#8 10-82167M SCREW (1 required per assembly) SERIAL 00000000-00008215
SCREW             O - Replaced by 10-95209M
 

This part has been superseded.

10-82167M - SCREW O [ More info ]
Unavailable
Replaced by 10-95209M
#9 17-82364M PIN, DOWEL (2 required per assembly)
PIN Dowel 17-82364M
 

About Mercury Marine

OEM Part

17-82364M - Pin -Dowel - Priced Individually [ More info ]

Add to shopping cart $7.50 $5.07
10+ in stock. Explain stock levels

#10 84732M ANODE (1 required per assembly)
ANODE 97-84732M
 

About Mercury Marine

OEM Part

9784732M - Anode [ More info ]

Add to shopping cart $12.10
5 in stock. Explain stock levels

#11 32-82000M HOSE (1 required per assembly)
HOSE              O - Replaced by 32-811045M
 

This part has been superseded.

32-82000M - HOSE O [ More info ]
Unavailable
Replaced by 32-811045M
HOSE,NLA 32-811045M
 

About Mercury Marine

OEM Part

32-811045M - Hose, NLA [ More info ]

Add to shopping cart $5.00
1 in stock. Explain stock levels

#12 54-82046M CLAMP, HOSE (2 required per assembly)
CLIP,NLA 54-82046M
 

About Mercury Marine

OEM Part

54-82046M - Clip, NLA [ More info ]

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

#13 81564M HOUSING, OIL SEAL (UPPER) (1 required per assembly)
HOUSING           O NLA
 

About Mercury Marine

OEM Part

HOUSING O NLA [ More info ]
Unavailable
#14 26-82245M OIL SEAL, CRANKSHAFT (UPPER) (1 required per assembly)
SEAL,NLA 26-82245M
26-82245M

About Mercury Marine

OEM Part

26-82245M - Seal, NLA [ More info ]

Add to shopping cart $15.00
10+ in stock. Explain stock levels

#15 27-81565M GASKET, OIL SEAL HOUSING (1 required per assembly)
GASKET,NLA 27-81565M
 

About Mercury Marine

OEM Part

27-81565M - Gasket - Priced Individually [ More info ]

Add to shopping cart $4.00
10+ in stock. Explain stock levels

#16 13-82197M WASHER, LOCK (3 required per assembly)
WASHER            O - Replaced by 13-82212M
 

This part has been superseded.

13-82197M - WASHER O [ More info ]
Unavailable
Replaced by 13-82212M
LOCKWASHER Note: must be ordered in multiples of 5 13-82212M
 

About Mercury Marine

OEM Part

13-82212M - LockWasher - Priced Individually [ More info ]

Add to shopping cart $2.10
10+ in stock. Explain stock levels

#17 968-8374M HEAD, CYLINDER (1 required per assembly)
HEAD              O NLA
 

About Mercury Marine

OEM Part

HEAD O NLA [ More info ]
Unavailable
#18 81555M GASKET, CYLINDER HEAD (1 required per assembly)
GASKET            O - Replaced by 27-81555
 

This part has been superseded.

27-81555M - GASKET O [ More info ]
Unavailable
Replaced by 27-81555
GASKET 27-81555
27-81555

About Mercury Marine

OEM Part

27-81555 - Gasket [ More info ]

Add to shopping cart $31.67
Available to order: Usually ships within 8 days. Explain stock levels

#19 10-82407M BOLT (11 required per assembly) SERIAL 00000000-00005810
BOLT,NLA 10-82407M
 

About Mercury Marine

OEM Part

10-82407M - Bolt, NLA [ More info ]

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

#20 81098M THERMOSTATE (1 required per assembly)
THERMOSTAT        O - Replaced by -99080M
 

This part has been superseded.

81098M - THERMOSTAT O [ More info ]
Unavailable
Replaced by -99080M
THERMOSTAT 99080M
99080M

About Mercury Marine

OEM Part

99080M - Thermostat [ More info ]

Add to shopping cart $84.16
4 in stock. Explain stock levels

#21 81030M COVER, THERMOSTAT (1 required per assembly)
COVER             O NLA
 

About Mercury Marine

OEM Part

COVER O NLA [ More info ]
Unavailable
#22 27-81031M GASKET, THERMOSAT COVER (1 required per assembly)
2781031 27-81031M
27-81031M

About Mercury Marine

OEM Part

27-81031M - Gasket - Priced Individually [ More info ]

Add to shopping cart $2.80
10+ in stock. Explain stock levels

GASKET Note: must be ordered in multiples of 5 27-81031
27-81031

About Mercury Marine

OEM Part

27-81031 - Gasket - Priced Individually [ More info ]

Add to shopping cart $4.80
10+ in stock. Explain stock levels

Cover Gasket
18-0232

About Sierra Marine

OEM Match

18-0232 - Gasket, 655-12414-A1-00 [ More info ]

Add to shopping cart $4.49
1 in stock. Explain stock levels

#23 12-81835M WASHER (1 required per assembly)
WASHER Note: must be ordered in multiples of 2 12-81835M
 

About Mercury Marine

OEM Part

12-81835M - Washer - Priced Individually [ More info ]

Add to shopping cart $6.40
10+ in stock. Explain stock levels

#24 10-83539M BOLT (3 required per assembly)
BOLT (M6 x 20)    O - Replaced by 10-84058M
 

This part has been superseded.

10-83539M - BOLT (M6 x 20) O [ More info ]
Unavailable
Replaced by 10-84058M
BOLT (M6 x 20) 10-84058M
10-84058M

About Mercury Marine

OEM Part

10-84058M - Bolt [ More info ]

Add to shopping cart $5.60
Available to order: Usually ships within 8 days. Explain stock levels

#25 81569M COVER,EXHAUST-OUTER (1 required per assembly)
COVER             O NLA
 

About Mercury Marine

OEM Part

COVER O NLA [ More info ]
Unavailable
#26 81568M COVER, EXHAUST-INNER (1 required per assembly)
COVER 81568M
 

About Mercury Marine

OEM Part

81568M - Exhaust Cover [ More info ]

Add to shopping cart $64.25
Available to order: Usually ships within 8 days. Explain stock levels

#27 27-81570M GASKET, EXHAUST COVER (2 required per assembly)
GASKET            O - Replaced by 27-81570
 

This part has been superseded.

27-81570M - GASKET O [ More info ]
Unavailable
Replaced by 27-81570
GASKET            O NLA
 

About Mercury Marine

OEM Part

GASKET O NLA [ More info ]
Unavailable
#28 10-82453M BOLT (1 required per assembly)
BOLT              O - Replaced by 10-82405M
 

This part has been superseded.

10-82453M - BOLT O [ More info ]
Unavailable
Replaced by 10-82405M
SCREW,NLA 10-82405M
 

About Mercury Marine

OEM Part

10-82405M - Screw, NLA [ More info ]

Add to shopping cart $7.50
10+ in stock. Explain stock levels

#29 10-96293M BOLT (4 required per assembly) SERIAL 00002351-09999999
BOLT              O - Replaced by 10-83285M
 

This part has been superseded.

10-96293M - BOLT O [ More info ]
Unavailable
Replaced by 10-83285M
BOLT 10-83285M
10-83285M

About Mercury Marine

OEM Part

10-83285M - Screw - Priced Individually [ More info ]

Add to shopping cart $3.60
10+ in stock. Explain stock levels

#29 10-84488M BOLT (4 required per assembly) SERIAL 00000000-00002350
BOLT              O - Replaced by 10-96293M
 

This part has been superseded.

10-84488M - BOLT O [ More info ]
Unavailable
Replaced by 10-96293M
#30 10-92523M BOLT (6 required per assembly) SERIAL 00008216-09999999
BOLT              O - Replaced by 10-84237M
 

This part has been superseded.

10-92523M - BOLT O [ More info ]
Unavailable
Replaced by 10-84237M
BOLT              O - Replaced by 10-83285M
 

This part has been superseded.

10-84237M - BOLT O [ More info ]
Unavailable
Replaced by 10-83285M
#31 33-82371M SPARK PLUG, B-7HS(NGK) (2 required per assembly)
SPARK PLUG        O - Replaced by 33-8M0114739
33-82371M

This part has been superseded.

33-82371M - SPARK PLUG O [ More info ]
Unavailable
Replaced by 33-8M0114739
S PLUG B7HS @4    O
 

About Mercury Marine

OEM Part

S PLUG B7HS @4 O [ More info ]
Unavailable
NGK B7HS/5110 SPARK PLUG (4)
B7HS

About NGK Spark Plugs

OEM Match

B7HS - NGK Spark Plug, 5110 [ More info ]

Add to shopping cart $2.79
10+ in stock. Explain stock levels

SPARK PLUG CHAMPION L82C
L82C

About Champion Spark Plugs

OEM Match

L82C - Champion Spark Plug ( #811M) [ More info ]

Add to shopping cart $2.41
10+ in stock. Explain stock levels

#32 12-82199M WASHER, LOCK (11 required per assembly)
1282214M 13-82199M
 

About Mercury Marine

OEM Part

13-82199M - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.25
8 in stock. Explain stock levels

WASHER Note: must be ordered in multiples of 5 12-82214M
 

About Mercury Marine

OEM Part

12-82214M - Washer - Priced Individually [ More info ]

Add to shopping cart $5.30
10+ in stock. Explain stock levels

#32 96375M POWERHEAD ASS'Y, COMPLETE (SEE NOTE) (1 required per assembly) REPLACEMENT PARTS
POWERHEAD         O - Replaced by -95648M
 

This part has been superseded.

96375M - POWERHEAD O [ More info ]
Unavailable
Replaced by -95648M
POWERHEAD ASSEMBL O - Replaced by -14233M
 

This part has been superseded.

95648M - POWERHEAD ASSEMBL O [ More info ]
Unavailable
Replaced by -14233M
POWERHEAD ASSEMBL O NLA
 

About Mercury Marine

OEM Part

POWERHEAD ASSEMBL O NLA [ More info ]
Unavailable
#32 27-92575M GASKET SET. POWERHEAD (1 required per assembly) REPLACEMENT PARTS
GASKET SET,NLA 27-92575M
27-92575M

About Mercury Marine

OEM Part

27-92575M - Gasket Set [ More info ]

Add to shopping cart $118.00
1 in stock. Explain stock levels