The same ISC/ISL family can use different bowls depending on the application—road, industrial, or marine—or the position of the filter housing.
The ESN remains the most important check,
because the same engine model can be fitted with different
parts depending on the year of manufacture or the CPL.
Cummins specifically specifies its use on 8.9-liter Tier 3 ISC/ISL automotive engines.
The ESN remains the most important check,
because the same engine model can be fitted with different
parts depending on the year of manufacture or the CPL
The tappet is installed between the camshaft cam and the rest of the valve train. It transmits the cam’s motion to the pushrod/rocker arm system, allowing the valves to open and close properly.
Applications for Cummins ISL, QSL, ISC, QSC, and C-Series engines.
Final compatibility must be verified using ESN, CPL, QuickServe, and the Cummins catalog before installation.
Conclusion: Part number 5272344 is a genuine Cummins turbocharger oil return pipe/connection, primarily used on 8.9-liter ISC/ISL EPA13 engines. To confirm with 100% certainty that it is the correct part for a specific engine, the ESN (Engine Serial Number) is required.