Do more without spending more! Shop the Splash into Summer Sale!
Over 26,000 items On Sale!

OMC Sterndrive/Cobra .030 OS Bore Pistons

Blowout
Save 3%-16% Off.
.030 Os Bore Piston - 18-4164 - Sierra
Summer Sale Price: $87.29
Save: $16.71
(16% Off $104.00)
Part # 18-4164 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 10 hrs 27 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • CRUSADER 7080350
  • GM 14077949
  • MERCURY MARINE 735-9687
  • MERCURY MARINE 735-850098
  • MERCURY MARINE 735-6371
  • OMC 3911023
  • VOLVO 3911023
.030 Os Bore Piston - 18-4178 - Sierra
Summer Sale Price: $100.79
Save: $3.21
(3% Off $104.00)
Part # 18-4178 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 10 hrs 27 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • CRUSADER 33708
  • MERCURY MARINE 735-9715
.030 Os Bore Piston - 18-4191 - Sierra
Summer Sale Price: $100.79
Save: $3.21
(3% Off $104.00)
Part # 18-4191 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 10 hrs 27 mins.
No Reviews | Write Review | Ask Question
 
Johnson/Evinrude 2.188 Piston 9-15 Hp .030 Over
Your Price: $48.50
Save: $8.20
(14% Off $56.70)
Part # 100-101-06K ValueShip™ Eligible
SHIPS TODAY!* if ordered in 10 hrs 27 mins.
No Reviews | Write Review | Ask Question
    OMC:
  • 396574
 
Johnson / Evinrude Piston Set .030 Over
Your Price: $68.57
Save: $11.38
(14% Off $79.95)
Part # 100-110-06K ValueShip™ Eligible
SHIPS TODAY!* if ordered in 10 hrs 27 mins.
No Reviews | Write Review | Ask Question
    OMC:
  • 393929
  • 396585
  • 396588
  • 5006667
  • 5006669
OMC E-Tec Piston Kit 40-90hp .030
OMC E-Tec Piston Kit 40-90hp .030
Your Price: $71.36
Save: $12.06
(14% Off $83.42)
Part # 100-126-06K
No Reviews | Write Review | Ask Question
    OMC:
  • 5005734
  • 5006736
OMC 4 & 6cyl E-tec .030 Port Piston
OMC 4 & 6cyl E-tec .030 Port Piston
Your Price: $71.36
Save: $12.06
(14% Off $83.42)
Part # 100-131-06PK
No Reviews | Write Review | Ask Question
    OMC:
  • 5007038
OMC 4 & 6cyl -tec .030 Star Piston
OMC 4 & 6cyl -tec .030 Star Piston
Your Price: $71.36
Save: $12.06
(14% Off $83.42)
Part # 100-131-06SK
No Reviews | Write Review | Ask Question
    OMC:
  • 55007039
Sierra
Ask a question for
Question & Answer Guidelines
This product ships in 1 to 2 business days.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Shop the Splash into Summer Sale and SAVE!
Need it in a hurry? Upgrade to 2nd Day Air for only $2 more*