Models prior to indicated engine cut-off require (1) 104 203 08 02 drain line. Water pump does not include 110 200 05 15 thermostat or 103 203 07 74 thermostat housing cover. - Models prior to indicated engine cut-off require (1) 104 203 08 02 drain line. Water pump does not include 110 200 05 15 thermostat or 103 203 07 74 thermostat housing cover. Earlier versions of of 103.940 engine require (1) 103 200 14 52 return line and (1) 124 501 33 82 lower radiator hose. - Models prior to indicated engine cut-off require (1) 104 203 08 02 drain line. Water pump does not include 110 200 05 15 thermostat or 103 203 07 74 thermostat housing cover. Earlier versions of of 103.940 engines require (1) 103 200 14 52 return line and (1) 124 501 33 82 lower radiator hose. - Models prior to indicated engine cut-off require (1) 104 203 08 02 drain line. Water pump does not include 110 200 05 15 thermostat or 103 203 07 74 thermostat housing cover. Earlier versions of of 103.983 engines require (1) 103 200 14 52 return line and (1) 124 501 33 82 lower radiator hose. -