yea. I would not go with dayco timing belts though. I have seem them break before the mileage interval. OEM mitsubishi and Contitech are VERY good belts. thats part number MD134377 is only for the belt. you will need new pulleys and the hydraulic tensioner aswell. and might as well do the cam/front crank/balance shaft seals at the same time. and also good time to change the water pump. it gets expensive but theres no better of a time to do it. I want to change my timing belt right away too.

I'm pretty sure you can source the timing belt stuff for an old d-50 4D55 diesel. water pump im not sure though. phil can probably verify this if he feels like spending countless hours on CAPS japan. haha