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Parts for Force 90 HP (1991) Power Head

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 F2051 SCREW, 1/4 - 20 X 2-1/4 (21 required per assembly)
SCREW,NLA 10-F2051  
10-F2051OEM Part 10-F2051 - Screw, NLA (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
#2 F692152 COVER, EXHAUST PORT (1 required per assembly)
COVER-EXHAUST     O - Replaced by -803932T F692152
F692152This part has been superseded. COVER-EXHAUST O - Replaced by -803932T
(more info)
    UnavailableUnavailable Parts
COVER-EXHAUST 803932T 803932T
803932TOEM Part 803932T - Exhaust Cover (more info) About Mercury Marine $60.00 $60.00 Add to shopping cart
10+ in stock. Explain stock levels
#3 F692154-1 GASKET, EXHAUST PORT PLATE (2 required per assembly)
GASKET            O - Replaced by 27-819023  
F692154-1This part has been superseded. GASKET O - Replaced by 27-819023
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-819023  1 27-819023
27-819023This part has been superseded. GASKET O - Replaced by 27-819023 1
(more info)
    UnavailableUnavailable Parts
GASKET 27-819023  1 27-819023  1
27-819023 1OEM Part 27-819023 1 - Gasket (more info) About Mercury Marine $18.50 $15.84 Add to shopping cart
2 in stock. Explain stock levels
#4 F699151 PLATE, EXHAUST PORT (1 required per assembly)
PLATE-EXHAUST     O - Replaced by 1000-819283  
F699151This part has been superseded. PLATE-EXHAUST O - Replaced by 1000-819283
(more info)
    UnavailableUnavailable Parts
PLATE-EXHAUST     O - Replaced by 1000-819283  1  
1000-819283This part has been superseded. PLATE-EXHAUST O - Replaced by 1000-819283 1
(more info)
    UnavailableUnavailable Parts
PLATE 1000-819283  1 1000-819283  1
1000-819283 1OEM Part 1000-819283 1 - Exhaust Plate (more info) About Mercury Marine $36.25 $36.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 F2090 PLUG (1 required per assembly)
PLUG              O NLA  
22-F2090 PLUG O NLA
(more info)
    UnavailableUnavailable Parts
#6 F529398-1 DECAL, WIRING (1 required per assembly)
#12 F476067 GASKET, THERMOSTAT (1 required per assembly)
GASKET            O - Replaced by 27-828319 27-F476067
27-F476067This part has been superseded. GASKET O - Replaced by 27-828319
(more info)
    UnavailableUnavailable Parts
GASKET 27-828319 27-828319
27-828319OEM Part 27-828319 - Gasket (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
Gasket 18-0854-9
18-0854-9OEM Match 18-0854-9 - Gasket 27-828319 2-Pack (more info) About Sierra Marine $3.98 $2.14 Add to shopping cart
2 in stock. Explain stock levels
#13 F692995 COVER, CYLINDER HEAD (1 required per assembly)
COVER-CYL HEAD    O NLA 1000-F692995
1000-F692995 COVER-CYL HEAD O NLA
(more info)
    UnavailableUnavailable Parts
#14 F1502 SCREW, 1/4 - 20 X 5/8 (3 required per assembly)
SCREW             O - Replaced by 10-98254  
F1502This part has been superseded. SCREW O - Replaced by 10-98254
(more info)
    UnavailableUnavailable Parts
SCREW (.250-20 x 10-98254 10-98254
10-98254OEM Part 10-98254 - Screw (more info) About Mercury Marine $0.40 $0.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 F1883 SCREW, 5/16 - 18 X 2-3/8 (14 required per assembly)
BOLT (.312-18 x 2 10-F1883 10-F1883
10-F1883OEM Part 10-F1883 - Screw (more info) About Mercury Marine $3.70 $3.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 F1987 WASHER (14 required per assembly)
WASHER            O - Replaced by 12-34437  
F1987This part has been superseded. WASHER O - Replaced by 12-34437
(more info)
    UnavailableUnavailable Parts
WASHER Note: must be ordered in multiples of 2 12-34437  
12-34437OEM Part 12-34437 - Washer - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 F722109-1 PLUG (1 required per assembly)
PLUG-(NYLON),NLA 22-F722109-1  
22-F722109-1OEM Part 22-F722109-1 - Plug - (Nylon), NLA (more info) About Mercury Marine $3.75 $3.75 Add to shopping cart
10+ in stock. Explain stock levels
#19 F719518 HEAD, CYLINDER (1 required per assembly)
HEAD-CYLINDER     O - Replaced by 900-819857  
900-F719518This part has been superseded. HEAD-CYLINDER O - Replaced by 900-819857
(more info)
    UnavailableUnavailable Parts
900819857A3 900-819857 900-819857
900-819857OEM Part 900-819857 - Cylinder Head -90 HP (more info) About Mercury Marine $123.25 $123.25 Add to shopping cart
10+ in stock. Explain stock levels
CYLINDER HEAD KIT 900-819857A 3 900-819857A 3
900-819857A 3OEM Part 900-819857A 3 - Head Kit -3 Cylinder (more info) About Mercury Marine $267.00 $267.00 Add to shopping cart
10+ in stock. Explain stock levels
#20 F369529-3 GASKET, CYLINDER HEAD (1 required per assembly)
GASKET 27-820438 27-820438
27-820438OEM Part 27-820438 - Gasket (more info) About Mercury Marine $70.70 $60.54 Add to shopping cart
Available to order:
Usually ships
within 8 days
Head Gasket 18-3855
18-3855OEM Match 18-3855 - Gasket, 27-820438 (more info) About Sierra Marine $42.99 $34.82 Add to shopping cart
1 in stock. Explain stock levels
#21 F40223 GASKET, TRANSFER PORT COVER (3 required per assembly)
27820500 27-F40223 27-F40223
27-F40223OEM Part 27-F40223 - GASKET (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
10+ in stock. Explain stock levels
GASKET            O - Replaced by 27-820500A 3 27-820500
27-820500This part has been superseded. GASKET O - Replaced by 27-820500A 3
(more info)
    UnavailableUnavailable Parts
GASKET KIT 27-820500A 3 27-820500A 3
27-820500A 3OEM Part 27-820500A 3 - Gasket Kit (more info) About Mercury Marine $11.70 $11.70 Add to shopping cart
3 in stock. Explain stock levels
Gasket 18-0869-9
18-0869-9OEM Match 18-0869-9 - Gasket 27-F40223 2-Pack (more info) About Sierra Marine $23.98 $18.89 Add to shopping cart
Available to order:
Usually ships
within 8 days
#22 817790A 1 COVER, TRANSFER PORT (2 required per assembly)
COVER KIT-PORT    O NLA  
817790A 1 COVER KIT-PORT O NLA
(more info)
    UnavailableUnavailable Parts
#24 F1504 SCREW, 1/4 - 20 X 1-1/4 (2 required per assembly)
SCREW (.250-20 x 10-F1504 10-F1504
10-F1504OEM Part 10-F1504 - Screw -ss (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 F8095 WASHER (8 required per assembly)
WASHER            O - Replaced by 12-25970  
12-F8095This part has been superseded. WASHER O - Replaced by 12-25970
(more info)
    UnavailableUnavailable Parts
WASHER            O - Replaced by 12-20553  
12-25970This part has been superseded. WASHER O - Replaced by 12-20553
(more info)
    UnavailableUnavailable Parts
WASHER (.406 x .7 12-20553  
12-20553OEM Part 12-20553 - Washer - Priced Individually (more info) About Mercury Marine $1.10 $1.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#26 F1872 SCREW, 3/8 - 16 X 1-3/4 (2 required per assembly)
SCREW             O - Replaced by 10-32132  
10-F1872This part has been superseded. SCREW O - Replaced by 10-32132
(more info)
    UnavailableUnavailable Parts
SCREW (.375-16 x 10-32132 10-32132
10-32132OEM Part 10-32132 - Screw (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
2 in stock. Explain stock levels
#27 F1009 SCREW, 3/8 - 16 X 2-3/4 (1 required per assembly)
SCREW             O - Replaced by 10-47688  
10-F1009This part has been superseded. SCREW O - Replaced by 10-47688
(more info)
    UnavailableUnavailable Parts
SCREW (.375-16 x 10-47688 10-47688
10-47688OEM Part 10-47688 - Screw (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#28 F1873 SCREW, 3/8 - 16 X 3 (4 required per assembly)
SCREW             O - Replaced by 10-53734  
10-F1873This part has been superseded. SCREW O - Replaced by 10-53734
(more info)
    UnavailableUnavailable Parts
SCREW 10-53734 10-53734
10-53734OEM Part 10-53734 - Screw (more info) About Mercury Marine $0.50 $0.50 Add to shopping cart
10+ in stock. Explain stock levels
#29 F1999 SCREW, 1/4 - 20 X 7/8 (2 required per assembly)
SCREW-SS          O - Replaced by 10-28668  
10-F1999This part has been superseded. SCREW-SS O - Replaced by 10-28668
(more info)
    UnavailableUnavailable Parts
SCREW (.250-20 x 10-28668 10-28668
10-28668OEM Part 10-28668 - Screw - Priced Individually (more info) About Mercury Marine $1.20 $1.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
Screw,Wtr Pckt/Mr Alpha 18-3229-9
18-3229-9OEM Match 18-3229-9 - Screw, 10-28668, 5PK (more info) About Sierra Marine $9.95 $4.54 Add to shopping cart
Available to order:
Usually ships
within 8 days
#30 F85210 STUD (1 required per assembly)
STUD              O - Replaced by 16-826394  
16-F85210This part has been superseded. STUD O - Replaced by 16-826394
(more info)
    UnavailableUnavailable Parts
STUD              O - Replaced by 16-826394  1  
16-826394This part has been superseded. STUD O - Replaced by 16-826394 1
(more info)
    UnavailableUnavailable Parts
STUD              O - Replaced by 16-826394  2  
16-826394 1This part has been superseded. STUD O - Replaced by 16-826394 2
(more info)
    UnavailableUnavailable Parts
STUD 16-826394  2  
16-826394 2OEM Part 16-826394 2 - Stud (more info) About Mercury Marine $52.40 $52.40 Add to shopping cart
10+ in stock. Explain stock levels
#31 F698122 SEAL, CRANKCASE PARTING LINE (1 required per assembly)
SEAL F698122 F698122
F698122OEM Part F698122 - Seal - (Black) (more info) About Mercury Marine $17.90 $15.33 Add to shopping cart
10+ in stock. Explain stock levels
#32 F8563 DOWEL PIN (2 required per assembly)
PIN               O - Replaced by 17-20433  
17-F8563This part has been superseded. PIN O - Replaced by 17-20433
(more info)
    UnavailableUnavailable Parts
PIN-DOWEL,NLA 17-20433  
17-20433OEM Part 17-20433 - Pin -Dowel, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#33 F85279-2 GASKET, CYLINDER EXHAUST (2 required per assembly)
GASKET            O - Replaced by 27-819381 F85279-2
F85279-2This part has been superseded. GASKET O - Replaced by 27-819381
(more info)
    UnavailableUnavailable Parts
GASKET 27-819381 27-819381
27-819381OEM Part 27-819381 - Gasket (more info) About Mercury Marine $19.30 $16.52 Add to shopping cart
4 in stock. Explain stock levels
#35 FG1028-1 GASKET SET (1 required per assembly)
GASKET SET        O - Replaced by 27-FG1028-2  
FG1028-1This part has been superseded. GASKET SET O - Replaced by 27-FG1028-2
(more info)
    UnavailableUnavailable Parts
GASKET SET 27-809748A 1  
27-809748A 1OEM Part 27-809748A 1 - Gasket Set (more info) About Mercury Marine $198.83 $198.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
#36 F719943 TUBE, WATER JACKET (TOP) (1 required per assembly)
TUBE 32-F719943  
32-F719943OEM Part 32-F719943 - Water Tube Jacket (more info) About Mercury Marine $2.10 $2.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#37 F719418 TUBE, WATER JACKET (2 required per assembly)
TUBE 32-F719418  
32-F719418OEM Part 32-F719418 - Water Tube Jacket (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#38 F719372 PIN (2 required per assembly)
PIN 17-F719372  
17-F719372OEM Part 17-F719372 - Pin - Water Jacket Tube (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#39 F691372 PIN (1 required per assembly)
PIN 17-F691372  
17-F691372OEM Part 17-F691372 - Pin - Water Jacket (more info) About Mercury Marine $1.10 $1.10 Add to shopping cart
1 in stock. Explain stock levels
#40 FA692680 PLATE, SPACER (1 required per assembly)
PLATE KIT         O - Replaced by -819750A 1  
FA692680This part has been superseded. PLATE KIT O - Replaced by -819750A 1
(more info)
    UnavailableUnavailable Parts
PLATE KIT-SPACER,NLA 819750A 1  
819750A 1OEM Part 819750A 1 - Plate Kit - Spacer, NLA (more info) About Mercury Marine $290.00 $290.00 Add to shopping cart
1 in stock. Explain stock levels
#41 800-817881A 1 CYLINDER (1 required per assembly)
CYLINDER KIT      O - Replaced by 800-817881A 3  
800-817881A 1This part has been superseded. CYLINDER KIT O - Replaced by 800-817881A 3
(more info)
    UnavailableUnavailable Parts
CYLINDER KIT      O - Replaced by 800-817881A 5  
800-817881A 3This part has been superseded. CYLINDER KIT O - Replaced by 800-817881A 5
(more info)
    UnavailableUnavailable Parts
CYLINDER KIT      O - Replaced by 800-817608A18  
800-817881A 5This part has been superseded. CYLINDER KIT O - Replaced by 800-817608A18
(more info)
    UnavailableUnavailable Parts
CYLINDER KIT      O - Replaced by 800-818153A23  
800-817608A18This part has been superseded. CYLINDER KIT O - Replaced by 800-818153A23
(more info)
    UnavailableUnavailable Parts
CYLINDER KIT      O NLA  
800-818153A23 CYLINDER KIT O NLA
(more info)
    UnavailableUnavailable Parts
# 800-817926A 3 SHORT BLOCK (1 required per assembly)
SHORT BLOCK       O - Replaced by 800-817926A 4  
800-817926A 3This part has been superseded. SHORT BLOCK O - Replaced by 800-817926A 4
(more info)
    UnavailableUnavailable Parts
SHORT BLOCK KIT   O - Replaced by 800-817608A 6  
800-817926A 4This part has been superseded. SHORT BLOCK KIT O - Replaced by 800-817608A 6
(more info)
    UnavailableUnavailable Parts
POWERHEAD ASSY    O - Replaced by 800-817608A17  
800-817608A 6This part has been superseded. POWERHEAD ASSY O - Replaced by 800-817608A17
(more info)
    UnavailableUnavailable Parts
POWERHEAD ASSY    O - Replaced by 800-817608A20  
800-817608A17This part has been superseded. POWERHEAD ASSY O - Replaced by 800-817608A20
(more info)
    UnavailableUnavailable Parts
POWERHEAD ASSY    O - Replaced by 800-817608A22  
800-817608A20This part has been superseded. POWERHEAD ASSY O - Replaced by 800-817608A22
(more info)
    UnavailableUnavailable Parts
POWERHEAD KIT     O NLA  
800-817608A22 POWERHEAD KIT O NLA
(more info)
    UnavailableUnavailable Parts