WISECO 9900XS XS-Style Piston Ring Set

WISECO REPLACEMENT RING SET.

XS type.

The ring type and bore size (in mm) is stamped on the dome of the piston.

Refer to this information to order the correct replacement rings.

Ring styles cannot be interchanged.

Please note: Only WISECO replacement ring sets may be used on WISECO pistons.

The WISECO 9900XS piston ring set is designed for applications requiring dependable replacement rings in a compact XS-style configuration. Manufactured by WISECO, this ring set supports proper piston sealing and helps maintain consistent engine performance when installed with a compatible piston and cylinder assembly. The set format provides the rings needed for a straightforward replacement or rebuild application.
Use the WISECO 9900XS ring set as a replacement component for compatible WISECO piston assemblies. Proper ring selection is essential for maintaining compression, controlling oil consumption, and supporting efficient combustion. Always verify piston, bore, groove, and application compatibility before installation, and follow the engine or piston manufacturer's specifications for ring placement, end gap, orientation, and break-in procedures.
This WISECO XS-style ring set is intended for professional engine builders, powersports technicians, and performance enthusiasts who need a trusted replacement component. Its compact design is suited to compatible applications where precise fit and reliable sealing are required. The set is supplied as one complete ring set, identified by WISECO part number 9900XS.

Features:

• Brand: WISECO

• Part Number: 9900XS

• Ring Style: XS-style piston ring set

• Application: Replacement or rebuild use with compatible WISECO piston assemblies

• Function: Supports piston sealing, compression control, and oil control

• Quantity: Supplied as one set

• Installation: Verify compatibility and follow the applicable ring installation and break-in specifications