Description
MB5B –
Used Cummins 3412860 piston cooling oil nozzle for specified Cummins ISX15 and QSX15 diesel engine configurations. Directs engine oil toward the underside of the piston to help control piston temperature.
- Manufacturer: Cummins.
- Condition: Used.
- Part number: 3412860.
- Confirmed aftermarket reference: FP-3412860.
Match the original nozzle number, oil-feed connection, mounting arrangement and nozzle orientation before ordering. Confirm fitment against the engine serial number and build configuration.


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