Precision Main Bearing M109H is a high-quality product designed by our factory for Mitsubishi 4DR5, 4DR50 and 4DR51 engines. This main bearing is an essential component in ensuring the proper function and longevity of your engine. Our bearing is carefully crafted using advanced technology and superior materials to guarantee reliable performance and durability. As a factory, we take pride in producing only the best-quality parts for our customers, and this main bearing is no exception. Trust our product to help your engine run smoothly and efficiently for years to come.