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Trans Fluid Filler Cap

Critical For Operation

Transmission

Seals the transmission fluid filler port, preventing leaks and contamination.

The transmission fluid filler cap seals the transmission’s fluid filler port, preventing transmission fluid from leaking and keeping dirt and contaminants from entering the transmission, ensuring proper lubrication and operation.

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Typical part cost
$10–$40🔒
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Typical labor cost
$50–$100🔒
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Typically lasts
100,000–200,000 mi
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Or about
7.0–10.0 years
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DIY difficulty
2/10

⚠️ Owners Often Notice

If the Trans Fluid Filler Cap is starting to fail, these are the signs owners most commonly report before it gets worse:

Transmission fluid leaks
Dirty or contaminated fluid

Related Services

Services commonly performed on or around this part.

Replace Trans Fluid Filler Cap

No standard interval on file

Clean Trans Fluid Filler Cap

No standard interval on file