• Easy piston ring installation
• Tapered true radius design
• Hard anodized for long life
• CNC machined aluminum

RELIABLE PISTON RING INSTALLATION

Building your engine with new stock or aftermarket parts reliably comes down to proper machine work, measurements, and assembly practices. Installing pistons and piston rings into the new bore can be very difficult and failure prone. Often one of the most improperly performed assembly steps, inferior piston ring compressors can lead to excessive wear or even a broken ring before ever starting the engine. This is why IE professional race engine builders always use ARP tapered piston ring compressors on every engine we assemble. 

TAPERED DESIGN

ARP's tapered design is CNC machined for an exact radius for each individual bore diameter. Finished with anodizing for long life and provides a smooth surface when oiled for easy ring slide with no wear on the ring pack. Never damage or break a ring again and build your engine with the confidence your piston rings are inserted as you want them.