ARP Ring Compressor (901-9500)

The ARP Ring Compressor (901-9500) is a specialty kit designed to facilitate the installation of piston rings during engine assembly. Crafted from CNC-machined 6061-T6 billet aluminum, these ring compressors feature a true radius for each bore diameter, ensuring precise fitment and reducing the risk of ring damage. 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 prominent engraving of bore sizes in 3/4 inch high numbers allows for quick identification. The true-radius design offers superior performance compared to conventional tapered compressors, providing a smooth, even compression process that helps achieve proper ring seating and optimal engine performance.

This ring compressor kit is suitable for use with engines requiring bore sizes around 95.0 mm. It is ideal for professional engine builders and enthusiasts performing rebuilds or assembly work on a variety of engines. The kit is compatible with a range of piston and ring sizes, making it versatile for different applications. Designed for easy installation, these compressors are a direct fit for engines with bore diameters matching the specified size. The set includes the necessary components to ensure a secure and precise fit during piston installation, supporting both street and performance engine builds.