Cummins ISX Single Cam Parts for Australia - Camshaft Section

Cummins ISX Single Cam Parts – Camshaft Section

A stable camshaft bore and a tight upper-end seal are essential to valve timing accuracy and long service life on the ISX Single Cam platform. This section groups the core items most shops stage together when addressing camshaft support and top-end sealing—so you can diagnose, select, and complete the job in one maintenance window.

Camshaft Bushings (Seven Required Per Engine)

What it is: Precision bushings that support and align the camshaft within the cylinder head for correct valve and injector timing.
What it does: Maintains oil-fed hydrodynamic support, minimizing cam runout and journal wear.
When to replace: Low oil pressure to the cam gallery, metallic debris in oil, ticking/knocking from the top end, accelerated lobe or journal wear, visible scoring in bushing bores, or abnormal cam backlash measurements.
Selection notes: Replace as a complete set of seven to keep clearances uniform. Always verify oil feed holes align with gallery passages and measure/install to factory clearance using the correct drivers and line-reaming procedures as required. Pair with fresh cam followers/rollers if wear is present.

Upper Gasket Set (For EGR-Equipped Engines)

What it is: A comprehensive top-end sealing package tailored for ISX engines with EGR.
What it does: Reseals the upper engine after cam service—preventing vacuum leaks, oil seepage, and coolant or exhaust gas intrusion that can skew sensor data and harm emissions compliance.
When to replace: Any time the valve cover, cam, or related housings are removed, or when oil misting and seepage are found around the top end.
Selection notes: Choose the EGR-specific set for correct port shapes and materials. Inspect mating surfaces, torque fasteners in sequence, and verify breather and EGR passages are clean before reassembly.

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