Akerly-Childs AC-RC4320 Tapered Piston Ring Compressor for 4.320-Inch Bore

The Akerly-Childs AC-RC4320 piston ring compressor is designed for installing piston rings into engines with a 4.320-inch bore. Its tapered profile helps guide rings smoothly into the cylinder, supporting efficient engine assembly and reducing the risk of ring damage during installation. This tool is well suited for professional engine builders, automotive technicians, and performance enthusiasts who require dependable fit and controlled compression.
Constructed from aluminum, the Akerly-Childs Ring Compressor combines practical durability with a lightweight design that is easy to handle during engine work. The black anodized finish provides a clean, professional appearance while helping protect the tool surface during regular shop use. Its application-specific sizing helps ensure consistent positioning around the piston and bore when properly selected for the engine assembly.
The AC-RC4320 is supplied as an individual piston ring compressor and is intended for use with a 4.320-inch bore. It is not air restricted and does not require truck freight, making it a convenient addition to an engine-building tool collection. For best results, verify the piston, ring, and cylinder specifications before installation and follow the engine manufacturer’s assembly procedures.

Features:

• Brand: Akerly-Childs

• Part Number: AC-RC4320

• Tool Type: Tapered piston ring compressor

• Application: Designed for a 4.320-inch bore

• Material: Lightweight aluminum construction

• Finish: Black anodized surface

• Packaging: Supplied individually

• Shipping Classification: Not air restricted and not truck freight only