Mahle single-cylinder piston, 4.040" bore plus 0.005", supplied with 1.0mm, 1.0mm, and 2.0mm file-fit rings, is offered as a service piston for custom engine assembly. Specified as a single-cylinder item, the set requires final fitting and ring filing during installation to achieve proper piston-to-cylinder clearance and ring seating in the intended application.
Mahle MS Single Cylinder 4.040in + 0.005in 1.0mm 1.0mm 2.0mm File Fit Rings