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Typical Looper Piston Sign Reads "Wanted: Good Woman Must Be Able To Clean, Cook, Sew,  Dig Worms, and Clean Fish.  Must Have Boat and Motor. Please Send Picture of Boat and Motor."

 

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If your Mfgr. says:

That motor's 7 years old!!
Part is no longer available.
We lose $$ on service!
EPA made me do it!
Part's at central warehouse, you'll get it next month.
We don't make parts for those.
We only do warranty work.
Our techs only fix late models.
No clue what's wrong! So we'll work time & material.

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REPLACEMENT PISTONS

2 & 3 CYLINDER

V4 & V6 are here

MASTERTECH presents pistons for rebuilding your motor. These are cast pistons unless noted. 
MOST PISTONS
HAVE A GRAY MOLY COATING TO REDUCE FRICTION & HEAT BUILD-UP DURING BREAK-IN.
WISECO
forged perfomance pistons available at extra charge. Most WISECO pistons are available in additional oversizes not available in PRO-V.
All pistons come complete with rings, wristpins and retainers.

warning symbolNOTE!! Please take the time to enter the model I.D. of your motor in the shopping cart. It will be sent in with your order.
Also be sure to note any oversize in the "Comments" section there so we can verify sizes.


2 cylinder 1/2" Wrist pin

9.9/15 HP
1974 - 1980
        
includes wristpin caged bearing
          #010-145
(required)
These are
WSM brand pistons.
Piston Part #100-99K
QTY:

Size:

$72.00 each


2 cylinder 5/8" Wrist pin

9.9/15 HP
 1981 - UP
 Use 2] 131-109 needles, 4] OEM 328792 washers
NOT included
     

These are
WSM brand pistons.
Piston Part #100-101K
QTY:

Size:

$72.00 each


2 cylinder

9.9/15 HP BIG BORE
      1993 - 2004
These are WSM brand pistons.
Piston Part #100-102K
QTY:

Size:

$75.00 each


2 cylinder

18 HP JET
      1995-2000
20 HP
      1981-83, 1985-98
25 HP
      1981-04
28 HP
      1986-89
30 HP
      1984-04
35 HP

AVAILABLE IN

WISECO BRAND
ONLY
Piston Part #3127
QTY:

Size:

$104.00 each


2 cylinder

25 HP
      1976-80
35 HP
      1976-80

AVAILABLE IN
WISECO ONLY
REQUIRED #2797 BEARINGS INCLUDED (to replace 5/8" wristpins with 3/4")
Piston Part #3128
QTY:

Size:

$124.00 each


2 cylinder

28 HP JET
      1995 UP
30 HP JET
      2000
35 HP Looper
      1986-87
35 HP JET
      1990-99
40 HP
      1984 UP
45 HP
      1985-91
48 HP
      1987-96
50 HP
      1981-04
55 HP
      COMMERCIAL, 1980-2000
60 HP
      1980-85
Piston Part # 100-100K series
QTY:

Size:

$96.00 each


3 cylinder

60 HP
      1974-75
65 HP
      1972-73
70 HP
      1974-75

       All include required
       bearing kit # WP15-1


These are WSM brand pistons.

Piston Part # 100-104K series
QTY:

Size:

$101.00 each


3 cylinder

60 HP
      1986-88
65 HP
      COMMERCIAL 1984-86
70 HP
      1976-85
75 HP
      1976-88


These are WSM
brand pistons.
Piston Part # 100-104K series

QTY:
Size:

$81.00 each


3 cylinder

50 HP
      1995-00
60 HP
      1989-up
65 HP
      1987-91
70 HP
      1986-up

These are WSM
brand pistons.
Piston Part #100-120K series
QTY:

Size:

$85.00 each


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We pay the freight out in USA on all orders over $100.00. Orders less than this amount will have a shipping and handling charge of $8.75 added. Some bulky and heavy items will incur additional charges. You will be notified beforehand if this is the case. Remember, all orders receive free technical support from the MasterTech!

 
 

Please review our Warranty, Returns & Refunds policies before you place an order.

DISCLAIMER

The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. The information, software, products, and services published on this web site may include inaccuracies or typographical errors. Changes are periodically added to the information herein. Mastertech may make improvements to this site at any time. Parts ordered from this website may or may not be in dealer stock at the time of order. Thank you for reading.