ARP Ring Compressor (901-7550)

The ARP Ring Compressor (901-7550) is a specialty kit designed to facilitate the installation of piston rings in engine cylinders. Crafted from CNC-machined 6061-T6 billet aluminum, these tapered ring compressors feature a true radius for each bore diameter, ensuring precise fitment and reducing the risk of ring damage during installation. The relieved design accommodates wire O-rings on the bottom, enhancing compatibility with various piston configurations. Type 3 anodizing provides a durable, long-lasting finish, while prominently engraved bore sizes in high-visibility numbers allow for quick identification. This high-quality tool offers superior performance compared to conventional tapered compressors, making it an essential component for engine builders and enthusiasts seeking reliable, accurate ring installation.

Designed for use with engine cylinders up to 75.5 mm bore diameter, the ARP tapered ring compressor is ideal for professional rebuilds, performance upgrades, and precision engine assembly. Its CNC-machined aluminum construction ensures durability and lightweight handling, while the true-radius design guarantees a smooth, even compression of piston rings. Suitable for use in various engine applications, this kit provides a secure, slip-free fit during installation, reducing the risk of ring damage or misalignment. The kit includes the necessary tapered ring compressors, each engraved with the bore size for easy selection. Compatible with a range of engine builds, it is perfect for both street and race engines requiring precise piston ring installation.