ARP Ring Compressor (901-9250)

The ARP Ring Compressor (901-9250) 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 during installation. The tapered design improves ease of use and reduces the risk of damaging piston rings. Reliefs for wire O-rings on the bottom enhance compatibility with various piston configurations, while Type 3 anodizing provides a durable, long-lasting finish. Prominently engraved bore sizes in high-visibility numbers allow quick identification, making it a reliable choice for professional engine builders and enthusiasts seeking accuracy and durability.

This ring compressor kit is suitable for bore sizes around 92.5 mm, making it ideal for a range of performance engine rebuilds and assembly tasks. Designed for use with engines requiring precise ring installation, it offers a secure fit and smooth operation, reducing installation time and minimizing ring damage. The tool is intended for use in professional and high-performance applications, including street and track engines. It is a direct-use, bolt-on accessory that does not require additional components. Compatible with various piston and ring sizes within its bore range, this compressor ensures a consistent, reliable installation process for demanding automotive projects.