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This Mahle NHRA Pro Stock plain ring set includes an expander oil ring sized at 4.750 in with 2.0 mm specification, packaged as a 48-unit bulk pack for professional engine builders. Intended for competition and high-performance assemblies, the plain-style rings provide consistent dimensions and sealing characteristics required in Pro Stock environments. Supplied as bulk quantities to support multiple engine builds.
Mahle Rings Perf Oil Ring Expander 4.750in x 2.0MM GNS NHRA Pro Stock Ring Set (48 Qty Bulk Pack)
