The Mahle OE three-ring chrome piston ring set is a replacement ring kit intended for specific IH piston applications. The listing identifies compatibility with IH piston references D179, D239, DT239, D310 and D358 and is described as a 3-ring chrome piston ring set. It serves as a direct replacement option for engine work where these exact ring references are required.
Mahle Rings IH D179 D239 DT239 D310 D358 3-Ring Piston Chrome Ring Set