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HP/Model:
Years:

HP/Model

Years

Sierra Piston, Standard

9.9 1984-2003 18-4135
15 1984-2003 18-4135
25 1985 18-4138
25 1988-Up 18-4141
C25 MHV2 1997 18-4144
30 1984-1986 18-4138
C30 1989-1992 18-4138
C30 1993-1997 18-4144
40 1984-1988 18-4141
40 1992-1994 18-4141
40 1996-2003 18-4141
E48 1997 18-4097
50 1986-1988 18-4141
50 1996-1997 18-4141
50 1999-2000 18-4141
50 2002-2003 18-4141
P50 1987-1988 18-4141
55 1993-1995 18-4097
60 1984-1998 18-4091
60 2002-2003 18-4091
C60 1996-2001 18-4091
E60 MLH,T,U,V 1995-1997 18-4094
P60 1991-1999 18-4091
70 1984-1998 18-4091
70 1999-2003 18-4091
C70 2000-2001 18-4091
75 1994-1998 18-4097
C75 1996 18-4097
C75 1998-1999 18-4097
E75 1996 18-4097
E75 1997 18-4097
P75 1996-1999 18-4097
C80 1997 18-4097
C85 1992-1996 18-4097
90 1994-1999 18-4097
C90 1997-2001 18-4097

HP/Model

Years

Sierra Piston, Standard

Refine Parts List
HP/Model:
Years:
Your Price: $91.64
Save: $10.45
(10% Off $102.09)
Part # 18-4091 2nd Day Air for $2 More Eligible
SHIPS TODAY!* if ordered in 9 hrs 48 mins.
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • YAMAHA 6H3-11631-01-96
Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
Your Price: $89.47
Save: $71.52
(44% Off $160.99)
Part # 18-4097 2nd Day Air for $2 More Eligible
SHIPS TODAY!* if ordered in 9 hrs 48 mins.
Hurry! Only 1 left in stock
Replaces OEM part #
  • YAMAHA 6H1-11631-03-95
Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
Your Price: $35.50
Save: $5.99
(14% Off $41.49)
Part # 18-4135 2nd Day Air for $2 More Eligible
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 761-7982T
  • MERCURY MARINE 761-7982M
  • YAMAHA 6E7-11631-00-97
For:
  • 9.9/15, 2 Cyl, Std. bore
Contains:
  • Piston, Piston Rings, Wrist Pin, and Circlips
Your Price: $44.20
Save: $2.29
(4% Off $46.49)
Part # 18-4138 2nd Day Air for $2 More Eligible
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 761-8484M
  • YAMAHA 689-11631-00-95
For:
  • 48 HP, 2 Cyl, std bore
Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
Your Price: $83.99
Save: $28.00
(25% Off $111.99)
Part # 18-4141 2nd Day Air for $2 More Eligible
SHIPS TODAY!* if ordered in 9 hrs 48 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • YAMAHA 6H4-11631-00-96
Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
Yamaha 2.638 Piston 20-25 Hp Std.
Your Price: $54.96 (Out of stock)
Save: $13.04
(19% Off $68.00)
Part # 100-250K
No Reviews  |  Write Review  |  Ask Question
    Yamaha:
  • 6L2-11631-00-97
(Out Of Stock)
Low Price Guarantee
Yamaha 2.638 Piston 40-50 Hp Std.
Your Price: $54.21
Save: $12.51
(18% Off $66.72)
Part # 100-260K
No Reviews  |  Write Review  |  Ask Question
    Yamaha:
  • 64H-11631-09-96
Yamaha 2.953 Piston Kit With Rings
Your Price: $54.21
Save: $12.51
(18% Off $66.72)
Part # 100-263K
No Reviews  |  Write Review  |  Ask Question
    Yamaha:
  • 676-11631-60-95
Yamaha 3.228 Piston 75-90 Hp Std.
Your Price: $70.21
Save: $16.19
(18% Off $86.40)
Part # 100-265K
No Reviews  |  Write Review  |  Ask Question
    Yamaha:
  • 688-11631-02-96
  • 688-11631-03-94
  • 6H1-11631-03-95
Sierra
Average Customer Review for Standard Inline Piston - 18-4097 - Sierra
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Based On 1 Review | Write Review
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got wrong piston 3 times
by Richard from Atwood, Ontario on July 21, 2014
shipping was good but following the online info tried and got wrong piston 2 times then by getting info from another site ordered the right piston except thought I was ordering first oversize but came as a standard piston. Maybe something I was doing wrong. Its for an older 90hp Yamaha 3 cylinder. Ric
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