Yamaha Outboard .25 mm OS Inline Pistons

Refine Parts List
HP/Model

(9.9 to 90)
Years

(1984 - Up)

HP/Model

Years

Sierra Piston, .25mm OS

Mallory Piston, .25mm OS

9.91984-200318-4136 -
151984-200318-4136 -
25198518-4139-
251988-Up18-4142 9-53811
C25 MHV2199718-4145 9-53806
301984-198618-4139-
C301989-199218-4139-
C301993-199718-4145 9-53806
401984-198818-4142 9-53811
401992-199418-4142 9-53811
401996-200318-4142 9-53811
C401997-199918-4142 9-53811
C402001-200218-4142 9-53811
P40199818-4142 9-53811
E48199718-4098-
501986-198818-4142 9-53811
501996-199718-4142 9-53811
501999-200018-4142 9-53811
502002-200318-4142 9-53811
C501998-199918-4142 9-53811
C50200118-4142 9-53811
P50199618-4142 9-53811
P501987-198818-4142 9-53811
551993-199518-4098-
751994-199818-4098-
C75199618-4098-
C751998-199918-4098-
E75199618-4098-
E75199718-4098-
P751996-199918-4098-
C80199718-4098-
C851992-199618-4098-
901994-199918-4098-
C901997-200118-4098-

HP/Model

Years

Sierra Piston, .25mm OS

Mallory Piston, .25mm OS

Refine Parts List
HP/Model

(9.9 to 90)
Years

(1984 - Up)
Blowout
Save 22%-48% Off.
.25 OS Bore Inline Piston Kit Japanese Model - Sierra
Sale-a-palooza Price: $24.29
Part # 18-4136 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 13 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 761-8022T
  • MERCURY MARINE 761-8022M
  • YAMAHA 6E7-11635-00-00
For:
  • 9.9/15 HP, 2 Cyl, .25 mm OS bore
Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
.25 mm OS Inline Piston - Sierra
Sale-a-palooza Price: $73.79
Save: $25.73
(25% Off $99.52)
Part # 18-4142 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 13 mins.
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Replaces OEM part #
  • YAMAHA 6H4-11635-00-00
.25mm O.S.

Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
.25 mm OS Inline Piston - Sierra
Sale-a-palooza Price: $29.69
Save: $8.80
(22% Off $38.49)
Part # 18-4145 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 13 mins.
No Reviews | Write Review
Replaces OEM part #
  • YAMAHA 61N-11635-00-00
.25mm O.S.

Contains:
  • Piston, Piston Rings, Wrist Pin and Circlips
 
Mallory Piston .25mm 9-53811
Sale-a-palooza Price: $51.99
Save: $47.53
(47% Off $99.52)
Part # 9-53811 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 13 mins.
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Yamaha
Replaces Original Equipment Manufacturer # (OEM #):6H4-11635-00-00
Fits Application:40/50 1984-88 w/2.953 Bore
Sierra
Mallory and Sierra inline pistons for Yamaha outboard motors.
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