ARP fasteners Tapered Ring Compressor AR901-8550

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Tapered Piston Ring CompressorFits 85.0mm BoreBrand: ARPPart Number: AR901-8550Description: 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). Show more