Abstract: A long life crab pot hauling system is provided with longer life than before available in a harsh salt water marine environment and with operation from an energy saving low power gasoline motor capable of dislodging a crab pot from the bottom of a body of water and hauling it up into a vessel without stalling. This is accomplished by a line hauler sheave having a heavy flywheel effect provided by a pair of separated flywheels of cast iron or the like between which is affixed respectively to each flywheel a pair of replaceable sheave members of a salt water and wear resistant material such as stainless steel forming an inclined groove for frictionally receiving the hauling line therebetween with said flywheel-sheave assembly being driven by the low power gasoline motor that can be readily carried on a small boat or skiff that services a line of crab pots. Only the sheave members are replaced after wear or corrosion caused by the lines.