Akerly-Childs AC-RC4187 Piston Ring Compressor 4.187 Inch

The Akerly-Childs AC-RC4187 is a professional-grade piston ring compressor designed for installing pistons with a 4.187-inch bore diameter. This essential engine building tool compresses piston rings uniformly, allowing pistons to be safely inserted into cylinder bores without damaging the rings or cylinder walls.

Key Features:

• 4.187-inch bore diameter capacity for precise fitment
• Tapered design guides piston smoothly into cylinder bore
• Durable construction withstands repeated use in professional shop environments
• Band-style compression ensures even pressure around entire ring set
• Reduces risk of ring breakage during installation

This ring compressor is an indispensable tool for engine rebuilds, allowing technicians to properly seat piston rings and install piston assemblies efficiently. Compatible with most automotive, marine, and powersports engines with the corresponding bore size.