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Parts for Mariner 25 HP, 25 HP Marathon, Super 15 (2 Cylinder) Crankshaft, Pistons & Flywheel

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

This part has been superseded.

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

This part has been superseded.

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

This part has been superseded.

258-859232T 6 - FLYWHEEL O [ 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 $413.00
Available to order: Usually ships within 8 days. Explain stock levels

#1 258-818354A 2 FLYWHEEL (DESIGN II) (1 required per assembly)
#2 10-97359A 1 SCREW ASSEMBLY, 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 $6.25
10+ in stock. Explain stock levels

#3 21-86496 WASHER, FLYWHEEL SCREW (1 required per assembly)
WASHER 12-86496
 

About Mercury Marine

OEM Part

12-86496 - Washer [ More info ]

Add to shopping cart $2.70
Available to order: Usually ships within 8 days. Explain stock levels

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

About Mercury Marine

OEM Part

43-99301 - Ring Gear [ More info ]

Add to shopping cart $229.17
Available to order: Usually ships within 8 days. Explain stock levels

#5 10-40039106 SCREW, (M5 x 13), RING GEAR TO FLYWHEEL -ELECTRIC (4 required per assembly)
1088190313 10-40039106
 

About Mercury Marine

OEM Part

10-40039106 - Screw [ More info ]

Add to shopping cart $0.75
4 in stock. Explain stock levels

SCREW (M5 x 13) 10-881903 13
10-881903 13

About Mercury Marine

OEM Part

10-881903 13 - Screw [ More info ]

Add to shopping cart $1.30
Available to order: Usually ships within 8 days. Explain stock levels

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

This part has been superseded.

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

About Mercury Marine

OEM Part

464-8978T 2 - CrankShaft [ More info ]

Add to shopping cart $274.25 $267.39
10+ in stock. Explain stock levels

#7 822445A 1 WEAR SLEEVE (1 required per assembly)
WEAR SLEEVE KIT 822445A 1
822445A 1

About Mercury Marine

OEM Part

822445A 1 - Wear Sleeve Kit [ More info ]

Add to shopping cart $16.60 $14.22
Available to order: Usually ships within 8 days. Explain stock levels

#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 $14.10
1 in stock. Explain stock levels

Oil Seal
18-0537

About Sierra Marine

OEM Match

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

Add to shopping cart $12.49 $11.00
1 in stock. Explain stock levels

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

This part has been superseded.

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

About Mercury Marine

OEM Part

31-85113T - Bearing [ More info ]

Add to shopping cart $19.92
Available to order: Usually ships within 8 days. Explain stock levels

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

This part has been superseded.

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

About Mercury Marine

OEM Part

31-85114T - Bearing [ More info ]

Add to shopping cart $22.08
Available to order: Usually ships within 8 days. Explain stock levels

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

About Mercury Marine

OEM Part

26-85974 1 - Seal [ More info ]

Add to shopping cart $16.30 $13.96
1 in stock. Explain stock levels

#12 86992A 3 BEARING ASSEMBLY, CENTER MAIN (1 required per assembly)
CENTER MAIN BEAR  O - Replaced by -86992A 5
 

This part has been superseded.

86992A 3 - CENTER MAIN BEAR O [ More info ]
Unavailable
Replaced by -86992A 5
BEARING ASSEMBLY Ce 86992A 5
86992A 5

About Mercury Marine

OEM Part

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

Add to shopping cart $104.67
Available to order: Usually ships within 8 days. Explain stock levels

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

About Mercury Marine

OEM Part

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

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

#14 767-9104A17 PISTON AND PIN ASSEMBLY (2 required per assembly) (See Note)
PISTON ASSY       O - Replaced by 767-9104A18
 

This part has been superseded.

767-9104A17 - PISTON ASSY O [ More info ]
Unavailable
Replaced by 767-9104A18
PISTON ASSY       O - Replaced by 767-9104A19
 

This part has been superseded.

767-9104A18 - PISTON ASSY O [ More info ]
Unavailable
Replaced by 767-9104A19
PISTON ASSY       O - Replaced by 767-9104T19
 

This part has been superseded.

767-9104A19 - PISTON ASSY O [ More info ]
Unavailable
Replaced by 767-9104T19
PISTON ASSEMBLY 767-9104T19
767-9104T19

About Mercury Marine

OEM Part

767-9104T19 - Piston Assembly [ More info ]

Add to shopping cart $138.67
Available to order: Usually ships within 8 days. Explain stock levels

#15 40-47276 LOCK RING, PISTON PIN (4 required per assembly) (See Note)
40828119 40-47276
40-47276

About Mercury Marine

OEM Part

40-47276 - Lock Ring - Priced Individually [ More info ]

Add to shopping cart $0.90
10+ in stock. Explain stock levels

LOCK RING Piston Pin 40-828119
40-828119

About Mercury Marine

OEM Part

40-828119 - Lock Ring [ More info ]

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

#16 39-17286A12 PISTON RING ASSEMBLY (1 required per assembly) (See Note)
3918652A12 39-17286A12
 

About Mercury Marine

OEM Part

39-17286A12 - Ring Set -12 Pcs [ More info ]

Add to shopping cart $80.00
3 in stock. Explain stock levels

RING SET-12 PCS   O - Replaced by 39-827491A12
 

This part has been superseded.

39-18652A12 - RING SET-12 PCS O [ More info ]
Unavailable
Replaced by 39-827491A12
RING SET Piston 39-827491A12
39-827491A12

About Mercury Marine

OEM Part

39-827491A12 - Piston Rings - 12 Rings in this set [ More info ]

Add to shopping cart $186.58
1 in stock. Explain stock levels

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

This part has been superseded.

630-8835A 2 - CONN ROD ASSY O [ 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 $235.00
Available to order: Usually ships within 8 days. Explain stock levels

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

About Mercury Marine

OEM Part

29-98295 - Needle Bearing - Priced Individually [ More info ]

Add to shopping cart $0.20 $0.14
10+ in stock. Explain stock levels

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

About Mercury Marine

OEM Part

42025 - Thrust Bearing [ More info ]

Add to shopping cart $1.58
1 in stock. Explain stock levels

WASHER-THRUST 12-8M0012294
 

About Mercury Marine

OEM Part

12-8M0012294 - Thrust Washer [ More info ]

Add to shopping cart $3.41
Available to order: Usually ships within 8 days. Explain stock levels

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

This part has been superseded.

31-41620A 1 - BEARING O [ More info ]
Unavailable
Replaced by 31-879877A 1
BEARING ASSEMBLY Roller 31-879877A 1
31-879877A 1

About Mercury Marine

OEM Part

31-879877A 1 - Bearing Cage Assembly [ More info ]

Add to shopping cart $31.50
Available to order: Usually ships within 8 days. Explain stock levels

#21 10-40082 25 SCREW, (M6 x 25) (METRIC THREAD) (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 $1.50
10+ in stock. Explain stock levels

#21 10-F1012 SCREW (STANDARD THREAD) (4 required per assembly)
SCREW,NLA F1012
 

About Mercury Marine

OEM Part

F1012 - Screw, NLA [ More info ]

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

#- 90885A88 POWERHEAD ASSEMBLY, COMPLETE (1 required per assembly)
POWERHEAD         O - Replaced by -90885A89
 

This part has been superseded.

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

This part has been superseded.

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

This part has been superseded.

90885T89 - POWERHEAD O [ More info ]
Unavailable
Replaced by -879732T89
PH 20/25          O NLA
 

About Mercury Marine

OEM Part

PH 20/25 O NLA [ More info ]
Unavailable
#- 822261A92 POWERHEAD ASSEMBLY (1 required per assembly) SN# 0D116956 THRU 0D117955
POWERHEAD MERCAS  O - Replaced by -90885A88
 

This part has been superseded.

822261A92 - POWERHEAD MERCAS O [ More info ]
Unavailable
Replaced by -90885A88
#- 27-41499A87 GASKET SET (1 required per assembly)
GASKET SET        O - Replaced by 27-41499A88
27-41499A87

This part has been superseded.

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

About Mercury Marine

OEM Part

27-41499A88 - Gasket Set [ More info ]

Add to shopping cart $121.70 $104.20
Available to order: Usually ships within 8 days. Explain stock levels

Powerhead Gasket Set
18-4334

About Sierra Marine

OEM Match

18-4334 - Powerhead Gasket Set [ More info ]

Add to shopping cart $109.49 $88.58
Available to order: Usually ships within 8 days. Explain stock levels