The development of science and technology (Science and Technology) were rapidly that requires every individual to participate in it, so a lot of efforts were made to accompany the development of the scaling up of the quality of learning, one of them with the development of instructional media in the form of modules. The purpose of this development is to improve the learning modules are feasible and to determine the average increase student learning outcomes. This research is a research development with 4D development model. The procedure is done is define, design, develop, and disseminate. Validation results for the feasibility of the engine cooling engine maintenance learning module have a very valid category. The average of student learning outcomes after using the engine cooling system learning module has increased compared with the average of learning outcomes before being given learning using the cooling system maintenance module. The average of student response result with very good category. Keywords: modulemaintenanceof engine cooling system, development of 4D models.