ARP 901-8725 Piston Ring Compressor 87.25mm Tapered Billet Aluminum

The ARP 901-8725 is a precision-engineered tapered piston ring compressor designed for 87.25mm bore diameters. This professional-grade tool is CNC-machined from 6061-T6 billet aluminum tube material, ensuring exceptional durability and precise dimensional accuracy for engine assembly work.

Key Features:

• True radius design machined specifically for 87.25mm bore diameter
• CNC-machined from 6061-T6 billet aluminum for strength and precision
• Type 3 hard anodized finish for extended tool life and corrosion resistance
• Relieved bottom design accommodates wire O-rings
• Bore size prominently engraved in 3/4-inch high numbers for easy identification
• Tapered design provides smooth piston insertion without ring damage

The true-radius design of ARP's tapered ring compressors is widely recognized as superior to conventional tapered devices and is the preferred choice of professional engine builders. This tool eliminates the risk of ring breakage during piston installation and ensures proper ring seating in the cylinder bore.