WISECO 4795M09450 440cc BIG BORE FORGED PISTON KIT DRZ400 LTZ400 KFX400 94.5mm

Wiseco High-Performance Forged 4-Stroke Big Bore Piston Kit — 94.50mm (+4.5mm Oversized / 440cc)

Part Number: 4782M08050 / 4795M09450

Condition: Brand New in Original Packaging

Shipping: FREE Standard Shipping to the Lower 48 US States!

Product Overview

Unlock high performance and serious displacement gains with this Wiseco 440cc Big Bore Forged Piston Kit. Precision-forged in the USA from aerospace-grade aluminum, this kit boosts compression to 12.5:1 and increases engine capacity to 440cc. Features Wiseco's signature ArmorGlide® skirt coating for reduced friction, smoother operation, and extended cylinder life.

Important Note: This is a +4.5mm big-bore piston. Big-bore cylinder reboring, replating, or cylinder resleeving is required for installation.

Technical Specifications

• Manufacturer: Wiseco

• Part Number: 4795M09450

• Displacement: 440cc

• Bore Diameter (Actual): 94.50mm (+4.50mm Big Bore)

• Standard Bore: 90.00mm

• Stroke: 62.60mm

• Compression Ratio: 12.5:1 High Compression

• Skirt Coating: ArmorGlide®

• Material: Forged Aluminum Alloy

Included Components

• (1) Wiseco Forged Big Bore Piston (4795M09450)

• (1) High-Performance Ring Set (Part # 3720XP)

• (1) Heavy-Duty Wrist Pin (Part # S549)

• (2) Circlips (Part # CW20)

Vehicle Fitment

• Suzuki DR-Z400 / DR-Z400E / DR-Z400S / DR-Z400SM: 2000 – 2024

• Suzuki QuadSport LT-Z400 / LT-Z400Z: 2003 – 2014

• Kawasaki KFX400 / KSX400: 2003 – 2006

• Kawasaki KLX400R / KLX400SR: 2003

• Arctic Cat DVX 400: 2004 – 2008

Please verify cylinder clearance and machining requirements prior to ordering.

Shipping & Terms

• FAST & FREE SHIPPING: Ships free to all physical street addresses within the lower 48 contiguous United States.

• Handling: Orders ship within 1 business day with tracking provided.

• Returns: 30-day return window. Item must be brand new, uninstalled, and in its original intact packaging.