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Mahle piston ring set for a 4.130" bore (+0.005). This file-fit three-ring kit specifies 0.043 in. ring thickness with complementary 1.5 mm and 3.0 mm ring heights to match rebuild tolerances. Intended for precise piston-to-cylinder sealing, these rings require careful filing to final size during installation to ensure correct ring gap and oil control for restored engine compression.
Mahle MS 4.130in+.005in .043in 1.5mm 3.0mm File Fit Rings
