Wiseco Pistons 9900XS XS Style Replacement Piston Ring Set

The Wiseco 9900XS is a high-quality replacement piston ring set designed specifically for use with Wiseco pistons. This XS-style ring set is engineered to restore compression and performance when rebuilding or refreshing your engine.

Key Features:

• XS-style ring design for specific Wiseco piston applications
• Manufactured to precise tolerances for optimal seal and performance
• Ring type and bore size are stamped on your piston dome for easy identification
• Direct replacement for worn or damaged rings on Wiseco pistons
• Not interchangeable with other ring styles—verify your piston markings before ordering

Important: Only Wiseco replacement ring sets are approved for use on Wiseco pistons. To ensure proper fitment, check the ring type and bore size (in millimeters) stamped on the dome of your existing piston, and order the corresponding ring set. Using incorrect ring styles can result in poor performance and engine damage.

This ring set provides a cost-effective solution for extending the life of your Wiseco pistons without requiring complete piston replacement.