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Home >> Dodge and Ram >> 2021 >> Durango SRT >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> 6.4L Engine (Service Information) >> Engine Block >> Rod, Piston And Connecting >> Description

Rod, Piston And Connecting: Description

CAUTION:

Do not use a metal stamp to mark connecting rods as damage may result, instead use ink or a scratch awl.

The pistons are made of a high-strength aluminum alloy. Piston skirts are coated with a solid lubricant (Molykote) to reduce friction and provide scuff resistance. The piston top ring groove and land is anodized. The connecting rods are made of forged powdered metal with a "fractured cap" design. A floating piston pin is used to attach the piston and connecting rod.