Mastertech PROVIDES MERCURY/MARINER WISECO, VERTEX AND PRO PISTONS, RINGS WRIST PINS

MasterTech
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TYPICAL WISECO CROSSFLOW PISTON

Wiseco 3064

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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!
Parts at central warehouse, you'll get them 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.

Baloney!!

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REPLACEMENT PISTONS

4 & 6 CYLINDER INLINE

2 & 3 CYL Pistons are here
V-6 Pistons are here

MASTERTECH presents pistons for rebuilding your motor. These pistons are made by WISECO, company started in 1941 by Clyde Wiseman, an old boat racer jus' like me who had a better idea. The company has expanded their line to include many applications including automotive and motorcycle, and is the piston of choice for use with today's fuels. All pistons come complete with rings, wristpins and retainers.

NOTE!! Please take the time to enter the Serial Number of your motor in the shopping cart. This info will be sent in with your order. Thanks!

NOTES ON MERC L-3, L-4 INLINE MODELS:

THE DATE OF MANUFACTURE OF YOUR L-3 OR L-4 POWERHEAD CAN BE FOUND STAMPED ON THE UPPER PORT SIDE OF THE CYLINDER BLOCK AT THE CRANKCASE SPLIT LINE.
ON L-3 AND L-4 MOTORS TWO TYPES OF CONNECTING ROD / PISTON COMBINATIONS ARE USED - TOP AND BOTTOM GUIDED. THIS REFERS TO THE METHOD OF ALIGNING THE RODS TO THE CRANKPIN AND CYLINDER CENTERLINE. YOU CAN IDENTIFY WHICH TYPE YOU HAVE BY THE FORGING NUMBER ON THE ROD AS FOLLOWS:

TOP GUIDED = 646-81884
BOTTOM GUIDED = 638-85321

PISTONS PRICED INDIVIDUALLY. PLEASE SELECT QUANTITY AND BORE SIZE ON THE TABLES BELOW.
ORIGINAL EQUIPMENT AND OTHER BRANDS ALSO AVAILABLE.
Rings, wrist pins and retainers included with the following pistons only:

4 Cylinder 40 HP 1990-1997 45 HP 1996-1989 50 HP 1970-1985 (Classic inline 4)	Piston Part #3144 STD BORE SIZE = 2.565" QTY: Size: $122.00 each
4 Cylinder 75 HP 1984-1986 Crossflow High Dome 80 HP 1978-1983 Crossflow High Dome 85 HP 1973-1977 Crossflow High Dome 6 Cylinder INLINE 90 HP 1978-1987 Crossflow High Dome 115 HP 1970-1983 Crossflow High Dome 135 HP 1970-1971 Crossflow High Dome 140 HP 1972 Crossflow High Dome	Piston Part #3109 STD BORE SIZE = 2.875" QTY: Size: $124.00 each
4 Cylinder 80 HP 1987-1989 Loop Charge Bottom Guided Conn Rod 100 HP 1989-1991 Loop Charge Bottom Guided Conn Rod 115 HP 1989-1991 Loop Charge Bottom Guided Conn Rod	Piston Part #3120 STD BORE SIZE = 3.375" QTY: Size: $149.50 each
4 Cylinder 100 HP 1992-1993 Loop Charge Top Guided Conn Rod 115 HP 1992-1993 Loop Charge Top Guided Conn Rod	Piston Part #3142 STD BORE SIZE = 3.375" QTY: Size: $141.00 each
4 Cylinder 100 HP 1994-2001 Loop Charge Big Bore 115 HP 1994-2004 Loop Charge 125 HP 1994-2004 Loop Charge	Piston Part #3162 STD BORE SIZE = 3.500" QTY: Size: $155.50 each
6 Cylinder INLINE 115 HP 1984-1988 Crossflow Low Dome 140 HP 1972 Crossflow Low Dome	Piston Part #3123 STD BORE SIZE = 2.875" QTY: Size: $124.00 each

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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.

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