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Mahle 4.125" 3.0mm oil ring tension rails, supplied as a 16-piece set, provide the replacement rails specified for compatible piston assemblies. These standard-tension rails are intended to control oil on the piston ring pack and match the listed 4.125" size and 3.0mm specification, offered as service pieces for engine rebuilds requiring the correct-dimension rails.
Mahle MS 4.125in 3.0MM Oil Ring Rails
