MerCruiser 75521 Crankcase Timing Cover Assembly 165hp 4.1L 250 Late 70's-1981 Pulley This was off a Crusader

This was off a Crusader Marine Engine 454 CDI 350Hp V8 Model # CH 350 R

MerCruiser 613-3817 / 613-3817T

All MerCruiser "470" models (S/N 05195045 & Up) They used a different one with a squared end prior to this one

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Boot: 99161

MerCruiser 75521 Crankcase Timing Cover Assembly 165hp 4.1L 250 Late 70's-1981 Pulley This was off a CrusaderPart Number(s) Included MerCruiser 75521 Crankcase Timing Cover General Application Compatibility This was just found on MerCruiser Inline 6 4. 1L 165hp applications Serial number 4331787 & up (which would be the late 70's thru 1981) Identifiable by the location of the Timing Check Gauge Other Details Freshwater Used Parts Overall good condition (see pictures) Purchase with confidence!