Piston for CATERPILLAR C18 16.3:1Reference20R0631Engine applicationsCATERPILLAR C18 16.3:1bore mm145retainer specification60-2-RA/RBsupplier ring thickness reference4T 3.1T 3.0Other references on this record20R063137195073687816PistonBrowse this categoryBrowse this brand · CATERPILLARProduct page · 3687816CATERPILLAR