New aftermarket Wiseco 79mm Piston Ring Set for Early NA Mazda Miata. This a set of Wiseco piston rings that go on the outside of the pistons with a 79mm bore. These piston rings are "pre-gapped" and include steel nitrided top rings and napier style 2nd rings. Part number 7900XX. Fits 1990-1993 Mazda Miata. Sold per piston. Choose between single piston ring set or 4 piston ring sets.
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