Tapered Piston Ring Compressor
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Fits 4.530" Bore
ARP's ring compressors are CNC machined from 6061-T6 billet tube material and feature a true radius and they are relieved for wire O-rings. Type 3 anodizing is used for long life, and the bore size is prominently engraved for easy identification. Standard stocking sizes from 3.552" to 4.750" (SAE) and 75mm to 100mm (metric).