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This Mahle plain ring set (Fire Power PC479) is a standard-tension piston ring kit for 4.000 in. bores. Offered as a plain ring set with standard tension, it serves as a direct replacement option where a 4.000 in. bore and STD tension specification are required. Use it when restoring or rebuilding engines that specify the PC479 standard-tension, 4.000 in. plain ring configuration.
Mahle Rings Fire Power PC479 Std Tension 4.000in Plain Ring Set
