Ensure precise piston ring installation with the ARP Ring Compressor designed for 4.000" diameters, minimizing ring damage and easing assembly. Its compact size—25.40 cm in length and weighing just 0.3 kg—provides easy handling and control during engine rebuilds. Discover why this tool is essential for maintaining engine integrity and efficiency.

Ensure precise piston ring installation with the ARP Ring Compressor 3.900", designed to compress rings reliably for smooth engine assembly. Its compact dimensions—25.40 cm length and 15.20 cm width—offer optimal control during use. Engineered for professionals seeking accuracy and ease, this tool streamlines your workflow effectively.