ARP Ring Compressor (901-9000)

The ARP Ring Compressor (901-9000) is a specialized tool designed to facilitate the installation of piston rings in high-performance engine builds. Crafted from CNC-machined 6061-T6 billet aluminum, this compressor features a true radius for each bore diameter, ensuring precise and uniform ring seating. The tapered design improves installation ease while maintaining optimal ring alignment. Reliefs for wire O-rings on the bottom enhance compatibility with various piston configurations. Type 3 anodizing provides a durable, long-lasting finish, and prominent engraving of bore sizes in 3/4 inch high numbers allows for quick identification. This high-quality tool offers superior control and accuracy during assembly, reducing the risk of ring damage and ensuring proper sealing for optimal engine performance.

Designed for use with a range of engine sizes, the ARP tapered ring compressor is suitable for applications requiring bore sizes around 90.0 mm. It is ideal for professional engine builders and enthusiasts working on performance or racing engines where precision is critical. The kit includes the CNC-machined aluminum compressor with engraved bore sizes, providing a reliable and reusable tool for multiple installations. Compatible with various piston and ring configurations, this compressor is a direct-fit accessory that simplifies the installation process, ensuring consistent results across different engine builds. Its durable construction and thoughtful design make it a valuable addition to any performance engine assembly toolkit.