ARP Ring Compressor

2010–2025 Compatible with Various Engines / Specialty Tool

Part #: 900-0360

Overview

The ARP Ring Compressor (900-0360) is a precision-engineered specialty tool designed to facilitate the installation of piston rings during engine rebuilds and assembly. Crafted by ARP, a renowned name in high-performance fasteners and engine components, this ring compressor kit is ideal for professional engine builders, performance enthusiasts, and DIY mechanics seeking reliable and accurate tools for their engine projects. Its superior design ensures a smooth, hassle-free process, helping you achieve proper ring seating and optimal engine performance.

Constructed from high-quality materials and featuring meticulous CNC machining, the ARP tapered piston ring compressors are built to last and deliver consistent results. Whether you're working on a street engine, a race motor, or a custom build, this tool provides the precision and durability needed to ensure your piston rings are installed correctly, reducing the risk of damage and ensuring proper sealing for maximum power output.

Key Features

The ARP Ring Compressor kit offers several advanced features that set it apart from conventional tools:

• Manufactured from CNC-machined 6061-T6 billet aluminum, ensuring strength, lightweight handling, and resistance to corrosion.
• True-radius design for each bore diameter provides a perfect fit, reducing the risk of ring damage during installation.
• Relieved to accommodate wire O-rings on the bottom, making it suitable for a variety of piston designs and ring configurations.
• Type 3 anodizing finish enhances durability and long-term corrosion resistance, maintaining a professional appearance over time.
• Prominently engraved bore sizes in 3/4 inch high numbers allow for quick and easy identification, streamlining your workflow.
• Precision CNC machining ensures tight tolerances and a perfect fit for bore diameters, promoting uniform compression and installation accuracy.
• Designed for use with a wide range of piston sizes, making it a versatile addition to any engine rebuild toolkit.
• Optimized for both professional and enthusiast use, providing consistent, reliable performance in demanding environments.
• Relieved design ensures compatibility with wire O-rings, supporting a variety of piston ring types and engine configurations.

Construction & Design

The ARP Ring Compressor is crafted from high-grade 6061-T6 billet aluminum, a material known for its excellent strength-to-weight ratio and corrosion resistance. The CNC-machined construction guarantees precise bore diameters and smooth surfaces, which are critical for preventing ring damage during installation. The true-radius design of each compressor ensures a perfect fit around the piston rings, reducing installation effort and minimizing the risk of ring breakage or deformation.

The anodized finish not only provides a sleek, professional appearance but also adds a layer of protection against wear and corrosion, ensuring the tool maintains its integrity over many uses. The engraved bore sizes are highly visible, allowing for quick selection and reducing the chance of errors during assembly. The relieved design accommodates wire O-rings, making this tool suitable for a variety of piston and ring configurations, including those with O-ring seals.

Performance & Use

While this tool does not directly increase engine power, it plays a vital role in ensuring proper piston ring installation, which is essential for optimal engine performance, sealing, and longevity. Using a high-quality ring compressor like the ARP 900-0360 helps achieve uniform compression around the piston rings, reducing installation time and preventing damage. Properly installed rings contribute to better compression, reduced blow-by, and improved overall engine efficiency.

Installation & Fitment

The ARP Ring Compressor is designed for straightforward, bolt-on installation. It fits a wide range of piston bore sizes, thanks to its precise CNC-machined bore diameters. No special tools or modifications are required to use this compressor; simply select the appropriate size, slide it over the piston rings, and carefully compress the rings into the cylinder bore during piston installation. Its lightweight aluminum construction makes handling easy, and the design ensures a secure fit without slipping or damaging the rings.

This tool is suitable for use in both professional engine shops and home garages. Its durable construction ensures it withstands repeated use without deformation or wear, providing consistent performance across multiple rebuilds.

What's Included

• Complete ring compressor kit with CNC-machined billet aluminum components
• Multiple bore sizes engraved for easy identification
• All necessary hardware for assembly and use

Ideal For

• Professional engine builders and machinists
• Performance enthusiasts performing engine rebuilds
• DIY mechanics seeking precision tools for piston installation
• Custom engine projects requiring reliable, high-quality components

Emissions Note

This product is a specialty tool designed for engine assembly and does not impact emissions or legal compliance. It is intended for use in off-road, racing, or competition applications where local regulations permit.