Akerly-Childs Piston Ring Compressor Bore

The Akerly-Childs piston ring compressor is an engine-building tool. It squeezes the piston rings flush with the piston so the piston slides into the cylinder bore during installation. Each compressor is made for a specific bore size, so you can pick the one that matches your engine build.

Key Features:

• Tapered design guides the piston and rings smoothly into the cylinder bore
• Aluminum construction keeps the tool light and durable
• Black anodized finish resists corrosion and wear
• Sized by bore for a close, secure fit around the ring pack
• Made in the USA by Akerly & Childs, a maker of performance engine components and tools including piston rings, engine bearings and ring compressors

The tool helps reduce the risk of broken or damaged rings during assembly. That makes it useful for professional engine builders, racers and serious DIY enthusiasts. Choose the variant that matches your piston bore size.