ARP Ring Compressor (901-9950)

The ARP Ring Compressor (901-9950) is a specialized tool designed to facilitate the installation of piston rings in engine cylinders. Crafted from CNC-machined 6061-T6 billet aluminum, this kit features a true radius for each bore diameter, ensuring precise and uniform compression. The tapered design enhances ease of use, while the reliefs accommodate wire O-rings on the bottom, preventing damage during installation. Type 3 anodizing provides a durable, long-lasting finish, and prominent engraving of bore sizes in high-visibility numbers allows for quick identification. This high-quality ring compressor offers superior performance compared to conventional tapered devices, promoting accurate ring seating and reducing installation errors.

Designed for use with various engine applications, the ARP tapered ring compressors are ideal for professional rebuilds and high-performance engine assembly. The 99.5 mm bore size makes it suitable for a range of piston sizes, ensuring compatibility with many engine configurations. These tools are intended for use in engine rebuilds, maintenance, and assembly where precise ring installation is critical. The kit includes the CNC-machined aluminum ring compressor and engraved bore size markings, providing a reliable, reusable solution for engine builders. Suitable for both street and race engines, this tool ensures a secure, damage-free installation of piston rings.