Wiseco GP Series 400 Piston Kit for Polaris 400 1995-2003

Upgrade your Polaris 400 4X4 engine with the high-performance Wiseco GP Series 400 Piston Kit, engineered for maximum power and reliability. This kit provides a significant boost in durability and horsepower for your SCRAMBLER 400 4X4 or XPLORER 400 4X4 models from 1995-2003.

Description

Experience unparalleled engine performance and longevity with the Wiseco GP Series Piston Kit. Each piston is meticulously forged from a high-silicon aluminum alloy, ensuring exceptional strength and dependability under the most demanding conditions. This advanced construction translates directly into increased horsepower and torque, delivering a more responsive and powerful ride. Wiseco's innovative forging design and optimized piston skirt work in harmony to maximize power output, while the high-tech design allows for maximum compression ratios and features ultra-stiff strutted forgings for sustained performance. Critical components like the titanium nitride-coated rings enhance durability and reduce friction, ensuring your engine runs stronger for longer. Furthermore, each piston is E-Coated on the crown, ring grooves, and pin bore, providing superior wear resistance and protection against micro-welding, galling, and detonation. The GP Series specific design, with less machining on the outside, enhances bore sealing for increased compression, and the removal of boost ports contributes to a more predictable powerband and increased pull on the top end, making this an ideal choice for serious riders and tuners.

Features & Highlights

• Superior Strength: Forged from high-silicon aluminum alloy for maximum durability and reliability in demanding applications.
• Optimized Power Output: Innovative forging design and piston skirt are engineered to deliver maximum horsepower and torque.
• Complete Rebuild Kit: Includes a forged piston, high-quality rings, wrist pins, and circlips for a comprehensive top-end refresh.
• Enhanced Durability: E-Coating on the piston crown, ring grooves, and pin bore provides exceptional wear resistance and protection against micro-welding, galling, and detonation.
• Sustained Performance: High-tech design features maximum compression ratios and ultra-stiff forgings, paired with titanium nitride-coated rings, for longer-lasting power.
• Predictable Powerband: GP Series parts offer less external machining for improved bore sealing and removed boost ports for a smoother, stronger top-end pull.

Technical Specifications

• Brand: Wiseco
• Series: GP Series
• Engine Displacement (Fitment): 400cc
• Piston Type: Forged
• Material: High-silicon aluminum alloy
• Piston Coating: E-Coated (crown, ring grooves, pin bore)
• Ring Coating: Titanium Nitride
• Kit Contents: Forged piston, rings, wrist pins, circlips
• Vehicle Fitment: Polaris SCRAMBLER 400 4X4, XPLORER 400 4X4 (1995-2003)
• EAN: 0193564123947

Important to Know

• Cylinder sleeves must be purchased separately.
• This high-performance piston kit is designed for expert racers and tuners; service intervals may be more frequent than with conventional pistons.

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