Purpose -The purpose of this paper is to present a model linking the role of design engineers to shared team knowledge, enhanced manufacturability, and product development outcomes. New product manufacturability is a quality of the product design that indicates the ease and reliability by which an organization develops products by using its manufacturing and supply chain resources. Design/methodology/approach -The model is tested using a sample of 205 product development projects from firms in the USA and Canada. Findings -The findings of the large-scale empirical study suggest that by facilitating informing practices among functional specialists, design engineers help translate a functional portrayal of the product in terms of customer attributes, to a form description in terms of engineering characteristics, and then to a fabrication view in terms of manufacturing processes. Practical implications -New product manufacturability can be a distinctive competency that provides competitive advantage by lowering costs, improving customer value, and speeding products to market. Originality/value -In contrast to previous research that showed that role changes of design engineers have a narrow impact on development productivity (e.g. improving resource allocation), this paper suggests that these role changes of design engineers have a much broader impact on manufacturability and, through this, improve manufacturing cost, time-to-market, and value-to-customers.