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

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 870-8373M CRANKCASE ASS'Y (1 required per assembly)
CYLINDER BLOCK    O - Replaced by 870-9359M  
870-8373MThis part has been superseded. CYLINDER BLOCK O - Replaced by 870-9359M
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O NLA  
870-9359M CYLINDER BLOCK O NLA
(more info)
    UnavailableUnavailable Parts
#2 22-80122M FITTING, CRANKCASE DRAIN (1 required per assembly)
FITTING Note: must be ordered in multiples of 2,NLA 22-80122M  
22-80122MOEM Part 22-80122M - Fitting - Priced Individually, NLA (more info) About Mercury Marine $4.00 $4.00 Add to shopping cart
7 in stock. Explain stock levels
#3 21-80727M CHECK VALVE ASS'Y (1 required per assembly)
CHECK VALVE,NLA 21-80727M 21-80727M
21-80727MOEM Part 21-80727M - Check Valve, NLA (more info) About Mercury Marine $15.00 $15.00 Add to shopping cart
10+ in stock. Explain stock levels
#4 21-80107M (1 required per assembly)
CHECK VALVE,NLA 21-80107M  
21-80107MOEM Part 21-80107M - Check Valve, NLA (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
10+ in stock. Explain stock levels
#5 10-41884M BOLT W/WASHER (8 required per assembly) SERIAL 00005811-09999999
BOLT (M8 x 55) 10-41884M 10-41884M
10-41884MOEM Part 10-41884M - Bolt (more info) About Mercury Marine $9.40 $9.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 10-82408M BOLT (8 required per assembly) SERIAL 00000000-00005810
BOLT,NLA 10-82408M  
10-82408MOEM Part 10-82408M - Bolt, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
#6 10-41885M BOLT W/WASHER (2 required per assembly) SERIAL 00005811-09999999
BOLT,NLA 10-41885M  
10-41885MOEM Part 10-41885M - Bolt, NLA (more info) About Mercury Marine $6.00 $6.00 Add to shopping cart
10+ in stock. Explain stock levels
#6 10-82406M BOLT (2 required per assembly) SERIAL 00000000-00005810
BOLT @2           O NLA  
10-82406M BOLT @2 O NLA
(more info)
    UnavailableUnavailable Parts
#7 12-80564M WASHER (21 required per assembly) SERIAL 00000000-00005810
WASHER,NLA 12-80564M  
12-80564MOEM Part 12-80564M - Washer, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
4 in stock. Explain stock levels
#8 10-95209M SCREW (1 required per assembly) SERIAL 00008216-09999999
SCREW,NLA 10-95209M  
10-95209MOEM Part 10-95209M - Screw, NLA (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
#8 10-82167M SCREW (1 required per assembly) SERIAL 00000000-00008215
SCREW @2          O - Replaced by 10-95209M  
10-82167MThis part has been superseded. SCREW @2 O - Replaced by 10-95209M
(more info)
    UnavailableUnavailable Parts
#9 17-82364M PIN, DOWEL (2 required per assembly)
PIN Dowel 17-82364M  
17-82364MOEM Part 17-82364M - Pin -Dowel - Priced Individually (more info) About Mercury Marine $7.30 $4.94 Add to shopping cart
10+ in stock. Explain stock levels
#10 84732M ANODE (1 required per assembly)
ANODE 97-84732M  
9784732MOEM Part 9784732M - Anode (more info) About Mercury Marine $12.10 $12.10 Add to shopping cart
5 in stock. Explain stock levels
#11 32-82000M HOSE (1 required per assembly)
HOSE              O - Replaced by 32-811045M  
32-82000MThis part has been superseded. HOSE O - Replaced by 32-811045M
(more info)
    UnavailableUnavailable Parts
HOSE,NLA 32-811045M  
32-811045MOEM Part 32-811045M - Hose, NLA (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
1 in stock. Explain stock levels
#12 54-82046M CLAMP, HOSE (2 required per assembly)
CLIP,NLA 54-82046M  
54-82046MOEM Part 54-82046M - Clip, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#13 81564M HOUSING, OIL SEAL (UPPER) (1 required per assembly)
HOUSING           O NLA  
81564M HOUSING O NLA
(more info)
    UnavailableUnavailable Parts
#14 26-82245M OIL SEAL, CRANKSHAFT (UPPER) (1 required per assembly)
SEAL,NLA 26-82245M 26-82245M
26-82245MOEM Part 26-82245M - Seal, NLA (more info) About Mercury Marine $15.00 $15.00 Add to shopping cart
10+ in stock. Explain stock levels
#15 27-81565M GASKET, OIL SEAL HOUSING (1 required per assembly)
GASKET,NLA 27-81565M  
27-81565MOEM Part 27-81565M - Gasket - Priced Individually (more info) About Mercury Marine $4.00 $4.00 Add to shopping cart
10+ in stock. Explain stock levels
#16 13-82197M WASHER, LOCK (3 required per assembly)
LOCKWASHER @20    O - Replaced by 13-82212M  
13-82197MThis part has been superseded. LOCKWASHER @20 O - Replaced by 13-82212M
(more info)
    UnavailableUnavailable Parts
LOCKWASHER Note: must be ordered in multiples of 5 13-82212M  
13-82212MOEM Part 13-82212M - LockWasher - Priced Individually (more info) About Mercury Marine $2.10 $2.10 Add to shopping cart
10+ in stock. Explain stock levels
#17 968-8374M HEAD, CYLINDER (1 required per assembly)
CYLINDER HEAD     O NLA  
968-8374M CYLINDER HEAD O NLA
(more info)
    UnavailableUnavailable Parts
#18 81555M GASKET, CYLINDER HEAD (1 required per assembly)
GASKET            O - Replaced by 27-81555  
27-81555MThis part has been superseded. GASKET O - Replaced by 27-81555
(more info)
    UnavailableUnavailable Parts
GASKET 27-81555 27-81555
27-81555OEM Part 27-81555 - Gasket (more info) About Mercury Marine $30.92 $30.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#19 10-82407M BOLT (11 required per assembly) SERIAL 00000000-00005810
BOLT,NLA 10-82407M  
10-82407MOEM Part 10-82407M - Bolt, NLA (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
10+ in stock. Explain stock levels
#20 81098M THERMOSTATE (1 required per assembly)
THERMOSTAT        O - Replaced by -99080M  
81098MThis part has been superseded. THERMOSTAT O - Replaced by -99080M
(more info)
    UnavailableUnavailable Parts
THERMOSTAT 99080M 99080M
99080MOEM Part 99080M - Thermostat (more info) About Mercury Marine $82.08 $82.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 81030M COVER, THERMOSTAT (1 required per assembly)
COVER             O NLA  
81030M COVER O NLA
(more info)
    UnavailableUnavailable Parts
#22 27-81031M GASKET, THERMOSAT COVER (1 required per assembly)
2781031 27-81031M 27-81031M
27-81031MOEM Part 27-81031M - Gasket - Priced Individually (more info) About Mercury Marine $2.80 $2.80 Add to shopping cart
10+ in stock. Explain stock levels
GASKET Note: must be ordered in multiples of 5 27-81031 27-81031
27-81031OEM Part 27-81031 - Gasket - Priced Individually (more info) About Mercury Marine $4.70 $4.70 Add to shopping cart
10+ in stock. Explain stock levels
Cover Gasket 18-0232
18-0232OEM Match 18-0232 - Gasket, 655-12414-A1-00 (more info) About Sierra Marine $4.49 $4.49 Add to shopping cart
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  
12-81835MOEM Part 12-81835M - Washer - Priced Individually (more info) About Mercury Marine $6.20 $6.20 Add to shopping cart
10+ in stock. Explain stock levels
#24 10-83539M BOLT (3 required per assembly)
SCREW @2          O - Replaced by 10-84058M  
10-83539MThis part has been superseded. SCREW @2 O - Replaced by 10-84058M
(more info)
    UnavailableUnavailable Parts
BOLT (M6 x 20) 10-84058M 10-84058M
10-84058MOEM Part 10-84058M - Bolt (more info) About Mercury Marine $5.50 $5.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 81569M COVER,EXHAUST-OUTER (1 required per assembly)
EXHAUST COVER     O NLA  
81569M EXHAUST COVER O NLA
(more info)
    UnavailableUnavailable Parts
#26 81568M COVER, EXHAUST-INNER (1 required per assembly)
COVER 81568M  
81568MOEM Part 81568M - Exhaust Cover (more info) About Mercury Marine $62.67 $62.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#27 27-81570M GASKET, EXHAUST COVER (2 required per assembly)
GASKET            O - Replaced by 27-81570  
27-81570MThis part has been superseded. GASKET O - Replaced by 27-81570
(more info)
    UnavailableUnavailable Parts
GASKET            O NLA  
27-81570 GASKET O NLA
(more info)
    UnavailableUnavailable Parts
#28 10-82453M BOLT (1 required per assembly)
BOLT @10          O - Replaced by 10-82405M  
10-82453MThis part has been superseded. BOLT @10 O - Replaced by 10-82405M
(more info)
    UnavailableUnavailable Parts
SCREW,NLA 10-82405M  
10-82405MOEM Part 10-82405M - Screw, NLA (more info) About Mercury Marine $6.25 $6.25 Add to shopping cart
10+ in stock. Explain stock levels
#29 10-96293M BOLT (4 required per assembly) SERIAL 00002351-09999999
BOLT              O - Replaced by 10-83285M  
10-96293MThis part has been superseded. BOLT O - Replaced by 10-83285M
(more info)
    UnavailableUnavailable Parts
BOLT 10-83285M 10-83285M
10-83285MOEM Part 10-83285M - Screw - Priced Individually (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
10+ in stock. Explain stock levels
#29 10-84488M BOLT (4 required per assembly) SERIAL 00000000-00002350
SCREW @2          O - Replaced by 10-96293M  
10-84488MThis part has been superseded. SCREW @2 O - Replaced by 10-96293M
(more info)
    UnavailableUnavailable Parts
#30 10-92523M BOLT (6 required per assembly) SERIAL 00008216-09999999
BOLT              O - Replaced by 10-84237M  
10-92523MThis part has been superseded. BOLT O - Replaced by 10-84237M
(more info)
    UnavailableUnavailable Parts
SCREW @10         O - Replaced by 10-83285M  
10-84237MThis part has been superseded. SCREW @10 O - Replaced by 10-83285M
(more info)
    UnavailableUnavailable Parts
#31 33-82371M SPARK PLUG, B-7HS(NGK) (2 required per assembly)
S-PLUG B7HS @10   O 33-82371M
33-82371M S-PLUG B7HS @10 O
(more info)
    UnavailableUnavailable Parts
NGK B7HS/5110 SPARK PLUG (4) B7HS
B7HSOEM Match B7HS - NGK Spark Plug, 5110 (more info)
Replaces OEM #0509568
About NGK Spark Plugs $2.79 Add to shopping cart
5 in stock. Explain stock levels
SPARK PLUG CHAMPION L82C L82C
L82COEM Match L82C - Champion Spark Plug ( #811M) (more info)
Replaces OEM #0502189
About Champion Spark Plugs $2.35 Add to shopping cart
10+ in stock. Explain stock levels
#32 12-82199M WASHER, LOCK (11 required per assembly)
1282214M 13-82199M  
13-82199MOEM Part 13-82199M - LockWasher - Priced Individually (more info) About Mercury Marine $0.25 $0.25 Add to shopping cart
8 in stock. Explain stock levels
WASHER Note: must be ordered in multiples of 5 12-82214M  
12-82214MOEM Part 12-82214M - Washer - Priced Individually (more info) About Mercury Marine $5.20 $5.20 Add to shopping cart
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  
96375MThis part has been superseded. POWERHEAD O - Replaced by -95648M
(more info)
    UnavailableUnavailable Parts
POWERHEAD         O - Replaced by -14233M  
95648MThis part has been superseded. POWERHEAD O - Replaced by -14233M
(more info)
    UnavailableUnavailable Parts
POWERHEAD MARINE  O NLA  
14233M POWERHEAD MARINE O NLA
(more info)
    UnavailableUnavailable Parts
#32 27-92575M GASKET SET. POWERHEAD (1 required per assembly) REPLACEMENT PARTS
GASKET SET,NLA 27-92575M 27-92575M
27-92575MOEM Part 27-92575M - Gasket Set (more info) About Mercury Marine $98.00 $98.00 Add to shopping cart
1 in stock. Explain stock levels