Ring - Piston: Description

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Piston Rings

Courtesy of DAIMLERCHRYSLER CORP.

1 - TOP PISTON RING

2 - CHROME INTERMEDIATE PISTON RING

3 - MICRO-NAPIER INTERMEDIATE PISTON RING

4 - OIL CONTROL RINGS

5 - SPACER

The piston rings include a moly-filled top ring with a symmetric barrel face. The intermediate piston ring is of the standard chrome design OR Micro-Napier design. The Micro-Napier design has a reduced "hook" on the running face, removes the need for chroming and improves oil economy. The oil control package consists of two steel rails and an expander spacer. See Fig 1.