Original Equipment Manufacturers (OEMs) need to collaborate within and outside their organizations to improve product quality and time to market. However, legacy systems built over decades using different technology stacks make information sharing and maintaining consistency challenging. Distributed ledger technologies (DLTs) can improve efficiency and provide trust, thus helping to achieve a more streamlined and unified collaboration infrastructure. However, most of the work done is theoretical or conceptual and lacks implementation. This paper elaborates on architecture and implementing a proof of concept (POC) of blockchain-based interoperability and data sharing system that allows OEMs to collaborate seamlessly and share information in real-time.