Automatic Transmission Oil Pump Seals

Replacement Parts > Transmission Replacements > Gaskets and Sealing Systems

Automatic Transmission Oil Pump Seals

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What is an automatic transmission oil pump seal?

An automatic transmission oil pump seal is a component of the automatic transmission system that helps to regulate the flow of oil. It is a rubber seal that fits between the oil pump and the transmission case, and helps to contain the oil within the pump and transmission case.

What is the purpose of an automatic transmission oil pump seal?

The primary purpose of an automatic transmission oil pump seal is to ensure that oil is contained and sealed within the transmission case and the oil pump. This helps to prevent the oil from leaking out of the transmission and to ensure that the transmission system remains lubricated.

How can I tell if my automatic transmission oil pump seal is faulty?

There are a few ways to tell if an automatic transmission oil pump seal is faulty. One of the most common signs of a faulty seal is a leak of transmission fluid. If the seal is faulty, fluid will be visible around the oil pump or transmission case. Additionally, if the seal is worn or cracked, it may be visible to the naked eye.

Can a faulty automatic transmission oil pump seal cause damage?

Yes, a faulty automatic transmission oil pump seal can cause damage to the transmission system. If the seal is not functioning correctly, it can allow transmission fluid to escape, which can lead to a decrease in lubrication and an increase in friction, leading to wear and tear of the transmission components.

How do I replace an automatic transmission oil pump seal?

Replacing an automatic transmission oil pump seal can be a complex task and should be done by a qualified mechanic. However, if you are experienced in automotive repair, the following steps should be followed:

  1. Place the vehicle on a secure level surface and put it in park.
  2. Disconnect the battery and any other components that may be in the way of the transmission.
  3. Remove the transmission pan, drain the fluid, and remove the transmission filter.
  4. Remove the old seal from the transmission case and the oil pump.
  5. Install the new seal by pressing it firmly into place.
  6. Reinstall the transmission filter and pan, and refill the transmission with fluid.
  7. Reconnect the battery and any other components that were previously disconnected.


How often should I inspect my automatic transmission oil pump seal?

It is recommended to inspect the automatic transmission oil pump seal on a regular basis, preferably every few months or whenever you change the transmission fluid. If you notice any signs of wear or damage, the seal should be replaced as soon as possible.