Akerly-Childs AC-RC4390 4.390-Inch Bore Tapered Piston Ring Compressor

The Akerly-Childs AC-RC4390 piston ring compressor is designed for applications using a 4.390-inch bore. Its tapered design supports ring compression during piston installation, helping provide a consistent approach to engine assembly.

Constructed from aluminum and finished with a black anodized surface, this ring compressor combines a lightweight material with a durable finish. The tapered profile is purpose-built for the listed bore size and provides a focused solution for piston ring installation tasks.

The Akerly-Childs AC-RC4390 is supplied as an individual piston ring compressor. It is not air restricted and is not designated for truck freight, making it suitable for standard handling requirements.

Features:

• Bore Size: Designed for a 4.390-inch bore
• Design: Tapered piston ring compressor
• Material: Aluminum construction
• Finish: Black anodized finish
• Packaging: Sold individually
• Shipping Classification: Not air restricted and not truck freight only