ARP 900-0900 Piston Ring Compressor Tool

The ARP 900-0900 piston ring compressor is a precision-engineered tool designed for professional engine builders and serious automotive enthusiasts. CNC-machined from 6061-T6 billet aluminum tube material, this ring compressor features a true radius design that provides superior performance compared to conventional tapered compressors.

Key Features:

• CNC-machined from 6061-T6 billet aluminum for exceptional strength and durability
• True radius design matches bore diameter precisely for easier piston installation
• Bottom relief accommodates wire O-rings on pistons
• Type 3 hard anodized finish for long-lasting wear resistance
• Bore size prominently engraved in 3/4-inch high numbers for quick identification
• Professional-grade tool trusted by engine builders worldwide

The true radius design of this piston ring compressor ensures even compression of all piston rings simultaneously, reducing the risk of ring damage during installation and making it significantly easier to guide pistons into the cylinder bore. The Type 3 anodizing provides a hard, corrosion-resistant surface that maintains smooth operation even after years of professional use.