Automatic Transmission Speedometer Pinion Seals

Replacement Parts > Transmission Replacements > Gaskets and Sealing Systems

Automatic Transmission Speedometer Pinion Seals

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What is an Automatic Transmission Speedometer Pinion Seal?

An Automatic Transmission Speedometer Pinion Seal is a seal that is located inside an automatic transmission, between the output shaft and the speedometer pinion gear. It helps to prevent fluid from leaking out of the transmission.

What is the purpose of an Automatic Transmission Speedometer Pinion Seal?

The purpose of an Automatic Transmission Speedometer Pinion Seal is to seal the area between the output shaft and the speedometer pinion gear in the transmission, preventing any transmission fluid from leaking out.

How can I tell if my Automatic Transmission Speedometer Pinion Seal is faulty?

If your Automatic Transmission Speedometer Pinion Seal is faulty, you may notice a puddle of transmission fluid underneath your vehicle. You may also detect a burning smell coming from the transmission, or hear a whining noise coming from the transmission when the vehicle is in motion.

Can a faulty Automatic Transmission Speedometer Pinion Seal cause damage?

Yes, a faulty Automatic Transmission Speedometer Pinion Seal can cause damage to the transmission, such as overheating or other problems. If the seal is not replaced in time, it can cause serious and costly damage to the transmission.

How do I replace an Automatic Transmission Speedometer Pinion Seal?

Replacing an Automatic Transmission Speedometer Pinion Seal is a relatively easy job, but it can be time consuming. Here are the steps:

  1. Drain the transmission fluid from the transmission.
  2. Remove the speedometer cable from the speedometer pinion gear.
  3. Remove the old seal from the speedometer pinion gear.
  4. Apply a small amount of sealant to the new seal.
  5. Install the new seal onto the speedometer pinion gear.
  6. Reattach the speedometer cable.
  7. Refill the transmission with transmission fluid.


How often should I inspect my Automatic Transmission Speedometer Pinion Seal?

It is recommended that you inspect your Automatic Transmission Speedometer Pinion Seal at least once a year, or whenever you have your transmission serviced.