MerCruiser 420 hp engine parts by serial number

MerCruiser 420 hp engine parts by serial number

Find the right catalogue for your MerCruiser 420 hp engine

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This page brings together parts catalogues for the MerCruiser 420 hp engine, within the category of 8-cylinder MerCruiser inboard engines. Each sub-catalogue corresponds to a specific serial number range and may show a different exploded view.

To identify the correct MerCruiser replacement parts, locate the serial number marked on your engine, then select the range that contains it. The catalogues include the MerCruiser 8.1L inboard H.O. engine and a variant identified by the designation EC.

After selecting the correct variant, consult the relevant diagram or exploded view to find the mechanical group, part number and description of the required part. Checking the serial number remains essential before making any selection.

If your engine does not belong to this 420 hp family, return to the MerCruiser 8-cylinder engines section to view the other power ratings and available catalogues.

MerCruiser 420 hp engine parts catalogue, with selection by serial number range and access to exploded views.

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M81ILINH Moteur mercruiser 8.1l inboard (h.o.) 0m026000 thru 0m319190 M81ILINI Moteur mercruiser 8.1l inboard (h.o.) 0m319191 thru 0w089999 M81ILINJ Moteur mercruiser 8.1l inboard (h.o.) 0w090000 thru 0w389999 M81ILINK Moteur mercruiser 8.1l inboard (h.o.) 0w390000 thru 0w689999 M81ILINL Moteur mercruiser 8.1l inboard (h.o.) 0w690000 thru 0w698172 M81ILINM Moteur mercruiser 8.1l inboard (h.o.) 0w691821 thru 1a380318 M81ILINN Moteur mercruiser 8.1l inboard (h.o.) ec 0w697154 thru 1a380251