This ST1269 piston ring expander serves as a critical internal assembly part built for Cummins K19, KTA19, KTA38, KTA50 and QSK19 engines. It supports proper installation of piston rings, maintaining correct ring tension to minimize oil consumption and blow?by gas. Manufactured with wear?resistant metal material, it holds stable shape under high?temperature cylinder conditions. This component is widely required during engine overhaul work to restore piston assembly performance.
Condition:New / OEM Quality
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