ARP Ring Compressor

Universal Fitment

Part #: 901-8750

Overview

The ARP Ring Compressor (901-8750) is a specialized tool designed to assist in the installation of piston rings during engine assembly. Crafted from high-quality CNC-machined 6061-T6 billet aluminum, this kit offers durability, precision, and ease of use for professional engine builders and automotive enthusiasts alike. Its tapered design ensures a snug fit for various bore sizes, helping to prevent ring damage and ensuring proper seating. The reliefs for wire O-rings and the true-radius profiles make installation smoother and more accurate, supporting optimal engine performance and longevity. Whether you're rebuilding an engine or performing routine maintenance, this compressor provides a reliable solution to streamline your assembly process.

Key Features

This kit features advanced engineering to improve your engine assembly experience with benefits including:

• Manufactured from CNC-machined 6061-T6 billet aluminum for strength and lightweight handling
• True-radius design for each bore diameter ensures precise ring seating
• Relieved to accommodate wire O-rings, reducing installation stress
• Type 3 anodizing for long-lasting corrosion resistance and durability
• Prominently engraved bore sizes for quick identification
• Designed to provide a consistent, controlled compression during piston installation
• Compatible with a wide range of bore sizes for versatile use

Construction & Design

The ARP Ring Compressor is meticulously CNC-machined from 6061-T6 billet aluminum, offering a combination of lightweight strength and resistance to wear. The true-radius profiles are precisely machined to match bore diameters, ensuring a perfect fit that minimizes the risk of ring damage. Anodized with Type 3 coating, the tool resists corrosion and maintains its appearance and functionality over time. The reliefs for wire O-rings are carefully designed to facilitate installation without compromising the integrity of the rings or pistons.

Installation & Fitment

This ring compressor kit is intended for use during engine assembly, specifically for installing piston rings into the cylinder bores. It is designed to fit a range of bore sizes, with each bore size clearly engraved for easy selection. Proper fitment should be verified against the bore diameter and the specific piston ring dimensions to ensure optimal performance. The tool is a drop-in, bolt-on style that simplifies the process of compressing rings evenly and securely.

What’s Included

The package includes a set of tapered ring compressors, each engraved with the bore size, crafted to support precise and efficient piston ring installation. Additional hardware or accessories are not typically required, but users should verify compatibility with their specific engine components.

Ideal For

This product is ideal for professional engine builders, automotive enthusiasts, and DIY mechanics engaged in engine rebuilds or performance upgrades, seeking a reliable, precise, and durable tool to streamline piston ring installation.