This paper presents the implementation of an activity-based costing (ABC) management in a medium
motor chain manufacturing company and the effect of ABC system on the production costs. This work
was a preliminary study described the difference between the previous and ABC cost calculation. This
work studied on spoke and nipple that had been produced for use as motor chain parts with a certain
amount of 10% of all items producing in this factory. As a result, the new manufacturing cost using
ABC management from the previous product cost determination presented that respectively, spoke and
nipple cost has been increased about 12% and 7%. It meant that the company should be added at least
of 12% and 7% into the new costs of spoke and nipple, respectively for setting the new selling prices
when this company has fixed the profit proportion on the company management policy and this
technique can be used with the other products in this company.