Wiseco Forged Piston // Sea-Doo 782 787 800 1995-2005 82mm 782cc

SKU: 666PS
Price: $152.00

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Wiseco Forged Piston Kit

For 1995-2005 Sea-Doo 782 / 787 / 800 PWCs

For 82mm Bore (stock bore)- 782cc
Includes Piston, Ring Set, Pin, and Circlips

Part Number 666PS, replaced by 666M08200 or 779M08200

Save 37% - Retail is $152!

Fits the following models:

Sea-Doo 3D Base 782 (2005 - 2005)
Sea-Doo 3D Premium 782 (2005 - 2005)
Sea-Doo GTI 782 LE (2005 - 2005)
Sea-Doo GTI 782 LE RFI (2003 - 2005)
Sea-Doo GTI 782 RFI (2004 - 2005)
Sea-Doo GTX 782 RFI (1998 - 2002)
Sea-Doo GSX 782 RFI (1999 - 2000)
Sea-Doo Challenger 1800 (782) (1997 - 1999)
Sea-Doo GTX 782 (1996 - 1999)
Sea-Doo Speedster 782 (1998 - 1999)
Sea-Doo SPX 782 (1997 - 1999)
Sea-Doo Challenger 782 (1996 - 1997)
Sea-Doo GSX 782 (1996 - 1997)
Sea-Doo XP 782 (1996 - 1997)
Sea-Doo XP-800 LTD (782) (1997 - 1997)
Sea-Doo XP-800 LTD (782) (1995 - 1995)

NOTE: Image is a Stock Photo, not actual item being sold. Item is new in original box.

Powersports Forged Piston Advantage

Wiseco leads the performance aftermarket by producing the highest quality forged pistons for Dirt Bikes, ATV's, Snowmobiles, Outboard Marine, and Motorcycles right here in the USA. Wiseco is unique because we forge all of our own pistons in house, and produce all of our own forge tooling right here in the USA. This allows us to control all aspects of our manufacturing process from raw bar to skirt coating finished parts.

In addition, in-house dyno testing gives Wiseco the ability to develop state-of-the-art technology such as new shapes, coatings, and components, and lead the industry through rigorous R&D. Linking all segments of Wiseco’s organization through design, testing, manufacturing, and distribution allows us to fulfill market needs with minimum lead-times.

Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produce higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.

Piston Engineering

Wiseco’s detailed skirt shapes and profiles are very specific to each application. Variable cam programming software developed in house allows Wiseco to produce high-performance shapes unique to only Wiseco. The skirt shape (barrel/cam) is one of the most functional areas on the piston, and provides stability and smooth operation in the cylinder bore. Stability is important for proper ring seal, reduced friction, and quiet operation. Each skirt shape is designed for a specific running clearance, based on coefficient of thermal expansion of the piston alloy. Some forging alloys expand more than casting alloys, but each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application. Comparing installed clearances on cast vs forged parts is not indicative of the running clearance at temperature. Wiseco engineers have a strong background in all forms of racing applications, and produce the best shapes and designs in the industry.


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⚠WARNING: Cancer and Reproductive Harm — Speedwerx, Inc. Prop65 Warnings or

These items are intended for closed-course competition only. Alternation of emissions-related components can constitute violation of federal and/or state laws. Substantial fines and penalties can result if used for other than closed-course competition use.