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Parts for Mercury Marine 18 HP Crankshaft, Pistons & Flywheel

# 90885A84 POWERHEAD ASSEMBLY, COMPLETE (-- required per assembly) INCLUDES CYLINDER BLOCK AND CRANKCASE, PISTONS, CONNECTING ROD AND BEARINGS.
90885A84 - POWERHEAD ASSY     - Replaced by -90885A87
 

90885A84 - Powerhead [ More info ]
Unavailable
90885A87 - POWERHEAD ASSEMBL  - Replaced by -90885A88
 

90885A87 - Powerhead [ More info ]
Unavailable
90885A88 - POWERHEAD ASSEMBL  - Replaced by -90885A89
 

90885A88 - Powerhead [ More info ]
Unavailable
90885A89 - POWERHEAD MARINE   - Replaced by -90885T89
 

90885A89 - Powerhead MARINE [ More info ]
Unavailable
90885T89 - POWERHEAD          - Replaced by -879732T89
 

90885T89 - Powerhead [ More info ]
Unavailable
879732T89 - PH 20/25           NLA
 

About Mercury Marine

OEM Part

879732T89 - PH 20/25,NLA [ More info ]
Unavailable
# 27-41499A84 GASKET SET (-- required per assembly)
27-41499A84 - GASKET SET         - Replaced by 27-41499A87
 

This part has been superseded.

27-41499A84 - 27-41499A84 - GASKET SET [ More info ]
Unavailable
Replaced by 27-41499A87
27-41499A87 - GASKET SET         - Replaced by 27-41499A88
27-41499A87

This part has been superseded.

27-41499A87 - 27-41499A87 - GASKET SET [ More info ]
Unavailable
Replaced by 27-41499A88
GASKET SET 27-41499A88
27-41499A88

About Mercury Marine

OEM Part

27-41499A88 - Engine Gasket Set [ More info ]

Add to shopping cart $140.80
1 In Stock.

#1 258-8274A 6 FLYWHEEL ASSEMBLY (1 required per assembly)
258-8274A 6 - FLYWHEEL ASSEMBLY  - Replaced by 258-818354A 2
258-8274A 6

This part has been superseded.

258-8274A 6 - 258-8274A 6 - FLYWHEEL ASSEMBLY [ More info ]
Unavailable
Replaced by 258-818354A 2
258-818354A 2 - FLYWHEEL           - Replaced by 258-859232T 6
258-818354A 2

This part has been superseded.

258-818354A 2 - 258-818354A 2 - FLYWHEEL [ More info ]
Unavailable
Replaced by 258-859232T 6
258-859232T 6 - FLYWHEEL           - Replaced by 258-859232T15
258-859232T 6

This part has been superseded.

258-859232T 6 - 258-859232T 6 - FLYWHEEL [ More info ]
Unavailable
Replaced by 258-859232T15
FLYWHEEL ASSY 258-859232T15
258-859232T15

About Mercury Marine

OEM Part

258-859232T15 - Flywheel Assembly [ More info ]

Add to shopping cart $566.00
Available to Order: Usually ships within 10 days.

#2 97359A 1 SCREW, FLYWHEEL TO CRANKSHAFT (1 required per assembly)
SCREW,NLA 10-97359A 1
 

About Mercury Marine

OEM Part

10-97359A 1 - Screw, NLA [ More info ]

Add to shopping cart $9.99
10+ In Stock.

#3 12-86496 WASHER, FLYWHEEL SCREW (1 required per assembly)
WASHER 12-86496
 

About Mercury Marine

OEM Part

12-86496 - Washer, Flywheel Screw [ More info ]

Add to shopping cart $3.80
Available to Order: Usually ships within 10 days.

#4 43-99301 RING GEAR, FLYWHEEL - ELECTRIC (1 required per assembly)
GEAR-RING 43-99301
43-99301

About Mercury Marine

OEM Part

43-99301 - Ring Gear [ More info ]

Add to shopping cart $326.75
Available to Order: Usually ships within 10 days.

#5 10-40039106 SCREW, RING GEAR TO FLYWHEEL (ELECTRIC) (4 required per assembly)
10-40039106 - SCREW (M5 x 13)    - Replaced by 10-88190313
 

This part has been superseded.

10-40039106 - 10-40039106 - SCREW (M5 x 13) [ More info ]
Unavailable
Replaced by 10-88190313
SCREW (M5 x 13) 10-88190313
10-88190313

About Mercury Marine

OEM Part

10-881903 13 - Screw [ More info ]

Add to shopping cart $1.70
Available to Order: Usually ships within 10 days.

#6 464-8697A 2 CRANKSHAFT ASSEMBLY (1 required per assembly)
464-8697A 2 - CRANKSHAFT         - Replaced by 464-8978A 2
 

This part has been superseded.

464-8697A 2 - 464-8697A 2 - CRANKSHAFT [ More info ]
Unavailable
Replaced by 464-8978A 2
464-8978A 2 - CRANKSHAFT ASSEMB  - Replaced by 464-8978T 2
 

This part has been superseded.

464-8978A 2 - 464-8978A 2 - CRANKSHAFT ASSEMB [ More info ]
Unavailable
Replaced by 464-8978T 2
CRANKSHAFT 464-8978T 2
464-8978T 2

About Mercury Marine

OEM Part

464-8978T 2 - CrankShaft [ More info ]

Add to shopping cart $199.99
10+ In Stock.

#7 99538 SEAL, CRANKSHAFT (1 required per assembly)
99538 - CARRIER            - Replaced by 26-43507
99538

99538 - Carrier Wear Sleeve [ More info ]
Unavailable
26-43507 - SEAL               - Replaced by -822445A1
26-43507

This part has been superseded.

26-43507 - 26-43507 - SEAL [ More info ]
Unavailable
Replaced by -822445A1
WEAR SLEEVE KIT 822445A1
822445A1

About Mercury Marine

OEM Part

822445A 1 - Wear Sleeve Kit [ More info ]

Add to shopping cart $18.42 $12.38
7 In Stock.

#8 26-85107 OIL SEAL, CRANKSHAFT (LOWER) (1 required per assembly)
SEAL Oil 26-85107
26-85107

About Mercury Marine

OEM Part

26-85107 - Seal [ More info ]

Add to shopping cart $19.30
2 In Stock.

OIL SEAL
18-0537

About Sierra Marine

OEM Match

18-0537 - Seal, 26-85107 [ More info ]

Add to shopping cart $17.04
2 In Stock.

#9 31-85113 ROLLER BEARING, CRANKSHAFT (LOWER) (1 required per assembly)
31-85113 - BEARING Roller     - Replaced by 31-85113T
31-85113

This part has been superseded.

31-85113 - 31-85113 - BEARING Roller [ More info ]
Unavailable
Replaced by 31-85113T
BEARING Roller - Lower 31-85113T
31-85113T

About Mercury Marine

OEM Part

31-85113T - Bearing - Roller - Lower [ More info ]

Add to shopping cart $26.58
Available to Order: Usually ships within 10 days.

#10 31-85114 ROLLER BEARING, CRANKSHAFT (UPPER) (1 required per assembly)
31-85114 - BEARING Roller -   - Replaced by 31-85114T
31-85114

This part has been superseded.

31-85114 - 31-85114 - BEARING Roller - [ More info ]
Unavailable
Replaced by 31-85114T
BEARING Roller - Upper 31-85114T
31-85114T

About Mercury Marine

OEM Part

31-85114T - Bearing - Roller - Upper [ More info ]

Add to shopping cart $29.33
Available to Order: Usually ships within 10 days.

#11 26-85974 OIL SEAL, CRANKSHAFT (UPPER) (1 required per assembly)
26-85974 - SEAL Oil           - Replaced by 26-859741
 

This part has been superseded.

26-85974 - 26-85974 - SEAL Oil [ More info ]
Unavailable
Replaced by 26-859741
26-859741 - SEAL
26-859741

About Mercury Marine

OEM Part

26-859741 - SEAL [ More info ]
Unavailable
#12 86992A 2 BEARING ASSEMBLY, CENTER MAIN (1 required per assembly)
86992A 2 - BEARING ASSEMBLY   - Replaced by -86992A 3
 

This part has been superseded.

86992A 2 - 86992A 2 - BEARING ASSEMBLY [ More info ]
Unavailable
Replaced by -86992A 3
86992A 3 - BEARING ASSEMBLY   - Replaced by -86992A 5
 

This part has been superseded.

86992A 3 - 86992A 3 - BEARING ASSEMBLY [ More info ]
Unavailable
Replaced by -86992A 5
BEARING ASSEMBLY,NLA 86992A 5
86992A 5

About Mercury Marine

OEM Part

86992A 5 - Bearing - Center/Main [ More info ]

Add to shopping cart $90.00
1 In Stock.

#13 28-20094 KEY, FLYWHEEL DRIVE (1 required per assembly)
KEY 28-20094
28-20094

About Mercury Marine

OEM Part

28-20094 - Key - Priced Individually [ More info ]

Add to shopping cart $1.70
10+ In Stock.

#14 767-8511A 3 PISTON AND PIN ASSEMBLY (2 required per assembly)
767-8511A 3 - PISTON ASSEMBLY    - Replaced by 767-9104A 3
 

This part has been superseded.

767-8511A 3 - 767-8511A 3 - PISTON ASSEMBLY [ More info ]
Unavailable
Replaced by 767-9104A 3
767-9104A 3 - PISTON ASSEMBLY    NLA
767-9104A 3

About Mercury Marine

OEM Part

767-9104A 3 - PISTON ASSEMBLY NLA [ More info ]
Unavailable
#15 40-47276 LOCK RING, PISTON PIN (4 required per assembly)
40-47276 - LOCK RING          - Replaced by 40-828119
40-47276

This part has been superseded.

40-47276 - 40-47276 - LOCK RING [ More info ]
Unavailable
Replaced by 40-828119
RING-LOCK 40-828119
40-828119

About Mercury Marine

OEM Part

40-828119 - Lock Ring [ More info ]

Add to shopping cart $3.10
Available to Order: Usually ships within 10 days.

#16 39-96525A12 PISTON RING ASSEMBLY (1 required per assembly)
39-96525A12 - RING SET Piston    - Replaced by 39-12810A12
 

This part has been superseded.

39-96525A12 - 39-96525A12 - RING SET Piston [ More info ]
Unavailable
Replaced by 39-12810A12
398M0083677 39-12810A12
39-12810A12

About Mercury Marine

OEM Part

39-12810A12 - Piston Rings 12 Pcs. [ More info ]

Add to shopping cart $95.99
10+ In Stock.

398M0096518 39-8M0083677
 

About Mercury Marine

OEM Part

398M0083677 - ORD 39-8M0096518 [ More info ]

Add to shopping cart $116.00
5 In Stock.

#17 630-8835A 2 CONNECTING ROD ASSEMBLY (2 required per assembly)
630-8835A 2 - CONNECTING ROD AS  - Replaced by 630-8835A 4
 

This part has been superseded.

630-8835A 2 - 630-8835A 2 - CONNECTING ROD AS [ More info ]
Unavailable
Replaced by 630-8835A 4
CONNECTING ROD ASSEMBLY 630-8835A 4
 

About Mercury Marine

OEM Part

630-8835A 4 - Connecting Rod [ More info ]

Add to shopping cart $297.83 $253.16
2 In Stock.

#18 29-98295 NEEDLE BEARING, PISTON END (54 required per assembly)
BRG-NEEDLE 29-98295
29-98295

About Mercury Marine

OEM Part

29-98295 - Needle Bearing [ More info ]

Add to shopping cart $0.40 $0.08
10+ In Stock.

#19 42025 BEARING, LOCATING - NEEDLE BEARING (4 required per assembly)
42025 - BEARING            - Replaced by 12-8M0012294
 

42025 - Thrust Bearing [ More info ]
Unavailable
WASHER-THRUST 12-8M0012294
 

About Mercury Marine

OEM Part

12-8M0012294 - Thrust Washer [ More info ]

Add to shopping cart $5.90
2 In Stock.

#20 31-41620A 1 ROOLER BEARING ASSEMBLY (2 required per assembly)
31-41620A 1 - BEARING ASSEMBLY   - Replaced by 31-879877A 1
31-41620A 1

This part has been superseded.

31-41620A 1 - 31-41620A 1 - BEARING ASSEMBLY [ More info ]
Unavailable
Replaced by 31-879877A 1
BEARING CAGE ASSY 31-879877A 1
31-879877A 1

About Mercury Marine

OEM Part

31-879877A 1 - Bearing - Roller [ More info ]

Add to shopping cart $42.75
3 In Stock.

#21 10-40082 25 SCREW, CONNECTING ROD (25MM) (4 required per assembly)
SCREW,NLA 10-40082 25
 

About Mercury Marine

OEM Part

10-40082 25 - Screw, NLA [ More info ]

Add to shopping cart $1.83
10+ In Stock.


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