1. Product Overview JWBR1938149E is an automotive water pump shaft bearing with an integral shaft, used in engine cooling pump assemblies. The unit combines shaft and rolling elements in one piece, sealed and pre-greased for continuous coolant-side operation. 👉 Get a quote within 24 hours for your project 2. Key Advantages Integral shaft design cuts assembly steps and alignment errors at the pump line Double seals keep coolant and dust away from the grease GCr15 bearing steel