WISECO 4807M09920 ATV Piston

Forged from high-silicon aluminum alloy for maximum strength and dependability.

Innovative forging design and piston skirt provide maximum horsepower and torque.

Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise).

Oversize pistons require cylinder sleeving.

The WISECO 4807M09920 ATV Piston is a replacement engine component designed for powersports applications requiring dependable piston performance. Manufactured by WISECO, a recognized name in performance engine components, this piston is intended to support proper combustion, compression, and efficient power transfer within a compatible ATV engine. It is supplied as one individual unit for replacement or engine rebuilding needs.
Before ordering, verify the WISECO part number 4807M09920 against your ATV’s year, make, model, engine specifications, and service requirements. Proper piston selection is essential for maintaining the correct fit with the cylinder, rings, wrist pin, connecting rod, and related engine components. Confirm all supporting parts and installation requirements with the vehicle manufacturer’s service information or a qualified powersports technician. This helps ensure the replacement piston is appropriate for the application and installed according to recommended procedures.
The WISECO ATV piston is suitable for repair, maintenance, and performance-focused engine projects where a correctly matched replacement component is required. During installation, inspect the cylinder and associated components for wear, damage, or out-of-specification conditions. Clean assembly practices, proper lubrication, and adherence to the engine manufacturer’s piston clearance, torque, and break-in guidelines are important for reliable operation. Because application requirements can vary, professional installation is recommended when the engine is being rebuilt or modified.
Choose the WISECO 4807M09920 when you need a clearly identified ATV piston from an established powersports engine component brand. This product is sold by unit and is intended for use only in compatible applications. Always compare the part number and vehicle