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Parts for Mariner 50 HP (3 Cylinder) Crankshaft, Pistons & Connecting Rods

#1 478-9611A 1 CRANKSHAFT ASSEMBLY (1 required per assembly)
CRANKSHAFT        O - Replaced by 478-9611T 1
 

This part has been superseded.

478-9611A 1 - CRANKSHAFT O [ More info ]
Unavailable
Replaced by 478-9611T 1
CRANKSHAFT ASSY 478-9611T 1
 

About Mercury Marine

OEM Part

478-9611T 1 - CrankShaft Assembly [ More info ]

Add to shopping cart $1,592.86
Available to order: Usually ships within 8 days. Explain stock levels

#2 30-63742 BALL BEARING (1 required per assembly)
3063742T 30-63742
30-63742

About Mercury Marine

OEM Part

30-63742 - Ball Bearing [ More info ]

Add to shopping cart $20.00
2 in stock. Explain stock levels

BEARING Ball 30-63742T
30-63742T

About Mercury Marine

OEM Part

30-63742T - Ball Bearing [ More info ]

Add to shopping cart $29.00 $24.84
Available to order: Usually ships within 8 days. Explain stock levels

Ball Bearing
18-1154

About Sierra Marine

OEM Match

18-1154 - Bearing, 30-63742, 377139 [ More info ]

Add to shopping cart $25.99 $19.44
1 in stock. Explain stock levels

#3 53-812877 RETAINING RING (1 required per assembly)
RING Retaining 53-812877
 

About Mercury Marine

OEM Part

53-812877 - Ring - Retaining [ More info ]

Add to shopping cart $2.00
Available to order: Usually ships within 8 days. Explain stock levels

#4 28-91800 KEY (2 required per assembly)
KEY Woodruff 28-91800
28-91800

About Mercury Marine

OEM Part

28-91800 - Key - Priced Individually [ More info ]

Add to shopping cart $1.65
2 in stock. Explain stock levels

#5 43-43019A 2 DRIVER GEAR (1 required per assembly)
GEAR ASSEMBLY 43-43019A 2
43-43019A 2

About Mercury Marine

OEM Part

43-43019A 2 - Driver Gear Kit [ More info ]

Add to shopping cart $43.83
Available to order: Usually ships within 8 days. Explain stock levels

#6 31-812873A 1 ROLLER BEARING ASSEMBLY (TOP) (1 required per assembly)
BEARING ASSEMBLY Roller 31-812873A 1
31-812873A 1

About Mercury Marine

OEM Part

31-812873A 1 - Bearing Kit [ More info ]

Add to shopping cart $109.34
Available to order: Usually ships within 8 days. Explain stock levels

#7 26-41953 1 OIL SEAL (1 required per assembly)
SEAL Oil 26-41953  1
26-41953  1

About Mercury Marine

OEM Part

26-41953 1 - Seal [ More info ]

Add to shopping cart $21.58
Available to order: Usually ships within 8 days. Explain stock levels

#8 812881A 1 ROLLER BEARING ASSEMBLY (CENTER) (2 required per assembly)
BEARING ASSEMBLY Roller 812881A 1
812881A 1

About Mercury Marine

OEM Part

812881A 1 - Bearing - Center Main [ More info ]

Add to shopping cart $120.67
Available to order: Usually ships within 8 days. Explain stock levels

#9 783-9613A 1 PISTON ASSEMBLY (3 required per assembly) (STANDARD)
PISTON            O - Replaced by 783-9613T 1
783-9613A 1

This part has been superseded.

783-9613A 1 - PISTON O [ More info ]
Unavailable
Replaced by 783-9613T 1
PISTON 783-9613T 1
783-9613T 1

About Mercury Marine

OEM Part

783-9613T 1 - Piston [ More info ]

Add to shopping cart $158.33
Available to order: Usually ships within 8 days. Explain stock levels

#9 783-9613A 2 PISTON ASSEMBLY (AR required per assembly) (.015 O.S.)
PISTON ASY .015   O - Replaced by 783-9613T 2
783-9613A 2

This part has been superseded.

783-9613A 2 - PISTON ASY .015 O [ More info ]
Unavailable
Replaced by 783-9613T 2
PISTON ASSY .015  O NLA
783-9613T 2

About Mercury Marine

OEM Part

PISTON ASSY .015 O NLA [ More info ]
Unavailable
Piston-.015
18-4017

About Sierra Marine

OEM Match

18-4017 - Piston, 783-9613A2 [ More info ]

Add to shopping cart $199.49 $152.68
3 in stock. Explain stock levels

#9 783-9613A 3 PISTON ASSEMBLY (AR required per assembly) (.030 O.S.)
PISTON ASY        O - Replaced by 783-9613T 3
783-9613A 3

This part has been superseded.

783-9613A 3 - PISTON ASY O [ More info ]
Unavailable
Replaced by 783-9613T 3
PISTON 783-9613T 3
783-9613T 3

About Mercury Marine

OEM Part

783-9613T 3 - Piston [ More info ]

Add to shopping cart $158.33
1 in stock. Explain stock levels

Piston-.030
18-4018

About Sierra Marine

OEM Match

18-4018 - Piston .030 783-9613A3 [ More info ]

Add to shopping cart $163.99 $122.46
1 in stock. Explain stock levels

#10 40-52035 LOCK RING (6 required per assembly)
53857196 40-52035
40-52035

About Mercury Marine

OEM Part

40-52035 - Lock Ring - Priced Individually [ More info ]

Add to shopping cart $1.25
10+ in stock. Explain stock levels

LOCK RING 53-857196
53-857196

About Mercury Marine

OEM Part

53-857196 - Lock Ring - Priced Individually [ More info ]

Add to shopping cart $2.40 $1.62
10+ in stock. Explain stock levels

Circlips (2/PKG)
18-4294

About Sierra Marine

OEM Match

18-4294-9 - Clips, PK2 [ More info ]

Add to shopping cart $4.98 $3.49
1 in stock. Explain stock levels

#11 39-19721A 6 PISTON RING (1 required per assembly) (STANDARD)
RING SET Piston 39-19721A 6
39-19721A 6

About Mercury Marine

OEM Part

39-19721A 6 - Rings - 6 - Standard [ More info ]

Add to shopping cart $169.00
Available to order: Usually ships within 8 days. Explain stock levels

Ring Set-std.
18-4019

About Sierra Marine

OEM Match

18-4019 - Rings, .39-19721A6 [ More info ]

Add to shopping cart $57.99 $44.52
1 in stock. Explain stock levels

#11 39-19721A 1 PISTON RING (AR required per assembly) (.015 O.S.)
RING SET Piston 39-19721A 1
39-19721A 1

About Mercury Marine

OEM Part

39-19721A 1 - Rings - 6-.015 Oversize [ More info ]

Add to shopping cart $175.00
1 in stock. Explain stock levels

Piston Rings
18-4020

About Sierra Marine

OEM Match

18-4020 - Rings.39-19721A1 - Special Order - No Returns [ More info ]

Add to shopping cart $34.41
In stock - special order item. Explain stock levels

#11 39-19721A 2 PISTON RING (AR required per assembly) (.030 O.S.)
RING SET Piston 39-19721A 2
39-19721A 2

About Mercury Marine

OEM Part

39-19721A 2 - Rings - 6-.030 Oversize [ More info ]

Add to shopping cart $180.09
Available to order: Usually ships within 8 days. Explain stock levels

Ring Set-.030
18-4021

About Sierra Marine

OEM Match

18-4021 - Rings, 39-19721A2 [ More info ]

Add to shopping cart $23.33 $17.51
1 in stock. Explain stock levels

#12 640-9612A 2 CONNECTING ROD ASSEMBLY (3 required per assembly)
CONN ROD ASSY     O - Replaced by 640-9612A 7
 

This part has been superseded.

640-9612A 2 - CONN ROD ASSY O [ More info ]
Unavailable
Replaced by 640-9612A 7
CONN ROD KIT      O - Replaced by 640-9612A 6
 

This part has been superseded.

640-9612A 7 - CONN ROD KIT O [ More info ]
Unavailable
Replaced by 640-9612A 6
CONNECTING ROD ASSEMBLY 640-9612A 6
 

About Mercury Marine

OEM Part

640-9612A 6 - Connecting Rod Assembly [ More info ]

Add to shopping cart $325.75
Available to order: Usually ships within 8 days. Explain stock levels

#13 12-812876 WASHER (6 required per assembly)
128M0012298 12-812876
 

About Mercury Marine

OEM Part

12-812876 - Thrust Washer [ More info ]

Add to shopping cart $2.22
9 in stock. Explain stock levels

THRUST WASHER 12-8M0012298
 

About Mercury Marine

OEM Part

12-8M0012298 - Thrust Washer [ More info ]

Add to shopping cart $3.80
Available to order: Usually ships within 8 days. Explain stock levels

#14 29-47270 NEEDLE BEARING (87 required per assembly)
BEARING 29-47270
29-47270

About Mercury Marine

OEM Part

29-47270 - Needle Bearing - Priced Individually [ More info ]

Add to shopping cart $0.22
10+ in stock. Explain stock levels

Needle Bearing
18-4036

About Sierra Marine

OEM Match

18-4036-9 - Bearing, 29-47270, 200PK [ More info ]

Add to shopping cart $38.00 $30.62
4 in stock. Explain stock levels

#15 10-91012 SCREW (6 required per assembly)
SCREW (.250-28 Special) 10-91012
10-91012

About Mercury Marine

OEM Part

10-91012 - Screw -spec - Priced Individually [ More info ]

Add to shopping cart $5.70 $3.42
10+ in stock. Explain stock levels

#16 31-17514A 2 ROLLER BEARING (3 required per assembly)
318M0045430 31-17514A 2
31-17514A 2

About Mercury Marine

OEM Part

31-17514A 2 - Caged Bearing Kit - Outboard [ More info ]

Add to shopping cart $40.00
10+ in stock. Explain stock levels

BEARING KIT 31-8M0045428
31-8M0045428

About Mercury Marine

OEM Part

31-8M0045428 - Bearing Kit [ More info ]

Add to shopping cart $55.50 $47.53
1 in stock. Explain stock levels

Needle Bearing Set (W/O Cag
18-4039

About Sierra Marine

OEM Match

18-4039 - Needle Bearings, Without Cage [ More info ]

Add to shopping cart $43.73 $34.18
2 in stock. Explain stock levels

Rod Bearing w/cage
18-1194

About Sierra Marine

OEM Match

18-1194 - Rod Bearing w/ Cage [ More info ]

Add to shopping cart $57.62 $38.08
4 in stock. Explain stock levels

#- 811209A93 POWERHEAD (1 required per assembly)
POWERHEAD MARINE  O - Replaced by -811209T93
 

This part has been superseded.

811209A93 - POWERHEAD MARINE O [ More info ]
Unavailable
Replaced by -811209T93
PH 50/60 3CYL     O NLA
 

About Mercury Marine

OEM Part

PH 50/60 3CYL O NLA [ More info ]
Unavailable