The transmission valve oil seal is a small yet crucial component that helps prevent oil leakage in your vehicle’s transmission system. Its code is 34193 and it has an analog BH4371E / M303, 90311-35024, T1228, NK122, 90310-35005/010. The size of this oil seal is 35*50*9.5 and it is manufactured by the brand NOK. It is mainly used in Toyota vehicles and falls under the category of other oil seals.