MerCruiser 75521 Crankcase Timing Cover Assembly 165hp 4.1L 250 Late 70's-1981 Pulley Found in MerCruiser Gen II

Found in MerCruiser Gen II upper gearcases for 5

Boot: 99161

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

MerCruiser 613-3817 / 613-3817T

Unknown Application

MerCruiser 75521 Crankcase Timing Cover Assembly 165hp 4.1L 250 Late 70's-1981 Pulley Found in MerCruiser Gen IIPart 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!