ARP 900-2000 ARP 900-2000 4.200-Inch Tapered Aluminum Piston Ring Compressor

The ARP 900-2000 piston ring compressor is designed to help install piston rings smoothly and consistently during engine assembly. Built for a 4.200-inch bore, this tapered compressor guides the piston and rings into the cylinder bore while helping reduce the risk of ring damage, snagging, or uneven installation. Its tapered profile supports controlled ring compression for accurate engine building and dependable results.
The compressor is manufactured from lightweight aluminum for easy handling and finished with a black anodized coating for added surface protection. The durable construction is well suited to professional engine builders, performance enthusiasts, and automotive technicians who require a reliable tool for repeated assembly work. The ARP name provides trusted quality for demanding high-performance applications.
Use the ARP 900-2000 as part of a careful piston installation process, following the engine manufacturer’s specifications and recommended ring procedures. The dedicated bore size helps provide a proper fit for compatible applications, while the tapered design assists with smooth cylinder entry. This piston ring compressor is supplied as one unit and is a practical addition to any engine assembly tool collection.

Features:

• Brand: ARP

• Part Number: 900-2000

• Application: Piston installation for a 4.200-inch bore

• Design: Tapered piston ring compressor

• Material: Lightweight aluminum

• Finish: Black anodized coating

• Quantity: Sold individually

• Use: Helps guide pistons and compressed rings into the cylinder bore