ARP Ring Compressor

Universal Fitment

Part #: 901-8150

Overview

The ARP Ring Compressor (901-8150) is a specialized tool designed to assist engine builders and technicians during the installation of piston rings into engine cylinders. Crafted from high-quality materials, this kit features CNC-machined 6061-T6 billet aluminum components that ensure durability and precision. Its tapered design helps achieve a snug fit around piston rings, reducing the risk of damage or misalignment during installation. This product is ideal for professional engine builders, automotive enthusiasts, and anyone seeking a reliable, reusable tool to streamline the assembly process and ensure proper ring seating for optimal engine performance and longevity.

Key Features

This ring compressor kit combines advanced engineering with practical design to support precise piston installation. Key features include:

• Made from CNC-machined 6061-T6 billet aluminum for strength and lightweight handling
• True-radius design for each bore diameter, providing superior fitment compared to conventional tapered compressors
• Relieved to accommodate wire O-rings on the bottom, ensuring compatibility with various piston designs
• Type 3 anodizing for enhanced corrosion resistance and long-lasting durability
• Clear, prominent engraving of bore sizes in 3/4 inch high numbers for quick identification
• Relieved areas to prevent damage to piston rings during compression and installation
• Designed for repeated use with consistent, reliable performance

Construction & Design

The ARP Ring Compressor features CNC-machined components crafted from 6061-T6 billet aluminum, known for its excellent strength-to-weight ratio and corrosion resistance. The true-radius design ensures each bore size provides a precise, smooth fit, reducing installation effort and minimizing ring damage. The anodized finish not only enhances durability but also maintains a professional appearance, making it suitable for both shop and personal use.

Installation & Fitment

This kit is designed for easy handling and compatibility with a wide range of piston sizes. The engraved bore sizes facilitate quick selection, and the true-radius design ensures a snug, accurate fit around piston rings. Proper fitment should be verified against your specific engine components to ensure compatibility.

What’s Included

The package includes multiple CNC-machined aluminum ring compressors, each engraved with its bore size, to accommodate various engine applications. Hardware and additional accessories are not included but are not necessary for standard use.

Ideal For

This product is perfect for professional engine builders, automotive enthusiasts, and technicians seeking a high-quality, reusable tool to simplify piston ring installation, improve accuracy, and support engine assembly projects.