ARP 901-7600 Billet Aluminum Piston Ring Compressor Tool

The ARP 901-7600 is a precision-engineered piston ring compressor designed for professional engine builders and serious enthusiasts. CNC-machined from 6061-T6 billet aluminum tube stock, this tool features a true radius bore that perfectly matches the cylinder diameter, ensuring smooth piston installation without damaging rings.

Key Features:

• CNC-machined from 6061-T6 billet aluminum for superior strength and durability
• True radius bore design provides even compression around the entire piston ring pack
• Relief cut on bottom edge accommodates wire O-rings without interference
• Type 3 hard anodized finish for exceptional wear resistance and long service life
• Bore size clearly engraved in large 3/4-inch numbers for quick identification
• Far superior to traditional tapered ring compressors that can twist or damage rings

This true radius design is the preferred choice of professional engine builders because it compresses rings evenly without the risk of breakage or improper seating. The precision machining ensures the tool slides easily into the cylinder bore while providing just the right amount of compression. Available in a wide range of sizes to fit most domestic and metric engine applications from 3.552 inches to 4.750 inches (SAE) and 75mm to 95.5mm (metric).