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The Mahle OE Moly Ring Set is a Pro Series low-tension piston ring kit for a 4.125-inch bore. These moly-faced rings are intended for engine rebuilds and ring replacement, providing reliable sealing and controlled tension for oil management during combustion. Suited to restoring compression and reducing friction compared with standard high-tension rings while remaining a direct replacement option for matching bore sizes.
Mahle Rings Pro Series Performance Rings Low Tension 4.125 Bore Moly Ring Set
