ARP Ring Compressor (901-9975)

The ARP Ring Compressor (901-9975) is a specialized kit designed for precise installation of piston rings in high-performance engines. Crafted from CNC-machined 6061-T6 billet aluminum, these tapered ring compressors feature a true radius for each bore diameter, ensuring a perfect fit and reducing installation stress. The relieved design accommodates wire O-rings at the bottom, enhancing sealing capabilities. Type 3 anodizing provides exceptional durability and corrosion resistance, while prominent engraving of bore sizes in 3/4 inch high numbers allows for quick identification. This high-quality tool offers consistent compression and protection of piston rings during assembly, contributing to improved engine performance and longevity.

Suitable for use with engines requiring a 99.75 mm bore size, these compressors are ideal for professional engine builders and enthusiasts performing rebuilds or assembly work. They are compatible with a range of applications where precise ring installation is critical, including street and racing engines. The kit is a direct-fit solution, ensuring ease of use and reliable performance. Designed for durability and accuracy, these compressors help prevent ring damage and ensure proper seating, making them an essential tool for maintaining high-performance engine integrity during assembly or repair.