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The Mahle performance oil ring assembly is a plain ring set sized at 4.745" with a 2.0mm section and .129" RW specification, offered for NHRA Pro Stock applications in bulk quantity. This ring set is intended for high-level racing use where precise ring sizing and consistent ring geometry matter for sealing and oil control in purpose-built engines.
Mahle Rings Performance Oil Ring Assy 4.745in x 2.0MM .129in RW GNS NHRA Pro Stock Plain Ring Set
