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Parts for Mariner W-55 HP Crankshaft & Piston

# 27-84168M POWERHEAD GASKET SET (1 required per assembly) .
GASKET SET 27-84168M
27-84168M

About Mercury Marine

OEM Part

27-84168M - Powerhead Gasket Set [ More info ]

Add to shopping cart $219.08
Available to Order: Usually ships within 10 days.

#1 463-6825M CRANKSHAFT ASSEMBLY (1 required per assembly)
463-6825M - CRANKSHAFT ASSEMB  NLA
 

About Mercury Marine

OEM Part

463-6825M - CrankShaft, NLA [ More info ]
Unavailable
#2 31-8231M NEEDLE BEARING (1 required per assembly)
761-8231M - PISTON             NLA
 

About Mercury Marine

OEM Part

761-8231M - Piston, NLA [ More info ]
Unavailable
#3 26-82249M OIL SEAL (UPPER) (1 required per assembly)
SEAL,NLA 26-82249M
26-82249M

About Mercury Marine

OEM Part

26-82249M - Seal, NLA [ More info ]

Add to shopping cart $38.88
10+ In Stock.

#4 25-82276M "O" RING (UPPER) (1 required per assembly)
O RING,NLA 25-82276M
 

About Mercury Marine

OEM Part

25-82276M - O Ring,NLA [ More info ]

Add to shopping cart $5.21
10+ In Stock.

#5 31-97837M CENTER MAIN BEARING (1 required per assembly)
31-97837M - BEARING            - Replaced by 31-97837T
 

31-97837M - Roller Bearing [ More info ]
Unavailable
BEARING,NLA 31-97837T
31-97837T

About Mercury Marine

OEM Part

31-97837T - Bearing, NLA [ More info ]

Add to shopping cart $110.00
10+ In Stock.

#6 30-41296M BEARING (LOWER) (1 required per assembly)
30-41296M - BEARING            - Replaced by 30-814560M
30-41296M

30-41296M - Ball Bearing [ More info ]
Unavailable
30814560T 30-814560M
30-814560M

About Mercury Marine

OEM Part

30-814560M - Ball Bearing [ More info ]

Add to shopping cart $27.78
3 In Stock.

BALL BEARING 30-814560T
30-814560T

About Mercury Marine

OEM Part

30-814560T - Ball Bearing [ More info ]

Add to shopping cart $69.99
10+ In Stock.

#7 15-81259M SHIM (1 required per assembly)
SHIM,NLA 15-81259M
 

About Mercury Marine

OEM Part

15-81259M - Shim, NLA [ More info ]

Add to shopping cart $6.67
3 In Stock.

#8 761-8462M PISTON (STANDARD - 81.95MM) (2 required per assembly)
PISTON,NLA 761-8462M
 

About Mercury Marine

OEM Part

761-8462M - Piston, NLA [ More info ]

Add to shopping cart $40.00
6 In Stock.

#8 761-8463M PISTON (1ST. O.S. - 82.25MM) (AR required per assembly)
761-8463M - PISTON             NLA
 

About Mercury Marine

OEM Part

761-8463M - Piston, NLA [ More info ]
Unavailable
#8 761-8464M PISTON (2ND O.S. - 82.50MM) (AR required per assembly)
761-8464M - PISTON             - Replaced by 761-8464T
 

761-8464M - Piston [ More info ]
Unavailable
PISTON,NLA 761-8464T
 

About Mercury Marine

OEM Part

761-8464T - Piston, NLA [ More info ]

Add to shopping cart $40.00
4 In Stock.

#9 39-92625M PISTONRING SET (STANDARD) (2 required per assembly)
39-92625M - PISTON RING        - Replaced by 39-92625T
 

39-92625M - Piston Ring [ More info ]
Unavailable
PISTON RING,NLA 39-92625T
 

About Mercury Marine

OEM Part

39-92625T - Piston Ring, NLA [ More info ]

Add to shopping cart $20.00
10+ In Stock.

#9 39-92626M PISTON RING SET (1ST O.S. - 82.25MM) (AR required per assembly)
3992626T 39-92626M
 

About Mercury Marine

OEM Part

39-92626M - Piston Ring [ More info ]

Add to shopping cart $14.00
2 In Stock.

PISTON RING,NLA 39-92626T
 

About Mercury Marine

OEM Part

39-92626T - Piston Ring, NLA [ More info ]

Add to shopping cart $10.00
10+ In Stock.

#9 39-92627M PISTON RING SET (2ND O.S. - 82.50MM) (AR required per assembly)
39-92627M - PISTON RING        - Replaced by 39-92627T
 

39-92627M - Piston Ring [ More info ]
Unavailable
PISTON RING,NLA 39-92627T
 

About Mercury Marine

OEM Part

39-92627T - Piston Ring, NLA [ More info ]

Add to shopping cart $20.00
10+ In Stock.

#10 41-83345M PISTON PIN (2 required per assembly)
41-83345M - PIN                - Replaced by 41-83345T
 

41-83345M - Piston Pin [ More info ]
Unavailable
PIN-PISTON,NLA 41-83345T
41-83345T

About Mercury Marine

OEM Part

41-83345T - Piston Pin, NLA [ More info ]

Add to shopping cart $6.00
10+ In Stock.

#11 53-41297M SNAP RING (4 required per assembly)
CLIP,NLA 53-41297M
 

About Mercury Marine

OEM Part

53-41297M - Clip, NLA [ More info ]

Add to shopping cart $1.50
10+ In Stock.

#12 29-82353M BEARING, CONNECTING ROD (PISTON END) (56 required per assembly)
BEARING 29-82353M
29-82353M

About Mercury Marine

OEM Part

29-82353M - Needle Bearing [ More info ]

Add to shopping cart $2.11
10+ In Stock.

#13 12-81831M RETAINER (4 required per assembly)
WASHER 12-81831M
 

About Mercury Marine

OEM Part

12-81831M - Washer - Priced Individually [ More info ]

Add to shopping cart $2.00
1 In Stock.

#14 629-8813M CONNECTING ROD ASSEMBLY (2 required per assembly)
CONNECTING ROD,NLA 629-8813M
 

About Mercury Marine

OEM Part

629-8813M - Connecting Rod, NLA [ More info ]

Add to shopping cart $40.00
10+ In Stock.

#15 10-81715M BOLT (2 required per assembly)
SCREW,NLA 10-81715M
 

About Mercury Marine

OEM Part

10-81715M - Screw, NLA [ More info ]

Add to shopping cart $6.67
10+ In Stock.

#16 31-41298M BEARING, CONNECTING ROD (CRANKSHAFT END) (2 required per assembly)
BEARING,NLA 31-41298M
 

About Mercury Marine

OEM Part

31-41298M - Bearing - Connecting Rod [ More info ]

Add to shopping cart $44.44
10+ In Stock.

#17 41828M HOUSING, OIL SEAL (1 required per assembly)
HOUSING,NLA 41828M
 

About Mercury Marine

OEM Part

41828M - Housing, NLA [ More info ]

Add to shopping cart $31.11
10+ In Stock.

#18 26-82255M OIL SEAL (LOWER) (1 required per assembly)
SEAL,NLA 26-82255M
 

About Mercury Marine

OEM Part

26-82255M - Seal, NLA [ More info ]

Add to shopping cart $7.78
10+ In Stock.

#19 26-82248M OIL SEAL (LOWER) (1 required per assembly)
SEAL,NLA 26-82248M
26-82248M

About Mercury Marine

OEM Part

26-82248M - Seal, NLA [ More info ]

Add to shopping cart $7.78
10+ In Stock.

#20 25-82286M "O" RING (1 required per assembly)
O RING,NLA 25-82286M
 

About Mercury Marine

OEM Part

25-82286M - O-ring, Oil Seal Housing,NLA [ More info ]

Add to shopping cart $7.88
10+ In Stock.

#21 10-91725M BOLT (3 required per assembly)
10-91725M - BOLT               - Replaced by 10-826957M
 

10-91725M - BOLT [ More info ]
Unavailable
BOLT,NLA 10-826957M
 

About Mercury Marine

OEM Part

10-826957M - Bolt, NLA [ More info ]

Add to shopping cart $4.43
10+ In Stock.

#22 12-82214M WASHER (3 required per assembly)
WASHER 12-82214M
12-82214M

About Mercury Marine

OEM Part

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

Add to shopping cart $4.90
10+ In Stock.

#23 28-81915M KEY (1 required per assembly)
KEY,NLA 28-81915M
28-81915M

About Mercury Marine

OEM Part

28-81915M - Key, NLA [ More info ]

Add to shopping cart $5.00
10+ In Stock.


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