Mahle piston ring set is specified for a 4.090 in. bore plus 0.005 in. and comprises 1.5 mm, 1.5 mm and 3.0 mm file-fit rings intended for accurate gap control and sealing. These rings are offered as measured replacement components for engine rebuilds where precise dimensions are required, supporting reliable compression and controlled oil consumption.
Mahle MS 4.090in+ .005in 1.5 1.5 3.0 mm File Fit Rings