Wiseco 3940VK High-Performance Piston Ring Set 3.940 in. Bore

The Wiseco 3940VK is a replacement piston ring set engineered for a 3.940-inch bore diameter. Designed as a direct replacement for Wiseco pistons, this ring set is manufactured to Wiseco's exact specifications to deliver optimal compression sealing and oil control in high-performance applications. Each set includes rings for one piston.

Key Features:

• Designed specifically for a 3.940 in. (100.08 mm) bore diameter
• Engineered to Wiseco's precise tolerances for maximum sealing performance
• Provides reliable compression retention and oil control
• Developed and validated for race-ready, high-performance engine use
• Direct replacement for Wiseco pistons with matching bore size
• Ring set covers one piston

Wiseco piston rings are developed and tested to ensure consistent performance across a wide range of applications, from street performance builds to demanding motorsports environments. Choosing the correctly sized ring set is critical to maintaining proper cylinder sealing and long-term engine reliability.