A/C Service Valve Cap
A/C System
Protects the service valve from contamination and prevents leaks.
The service valve cap seals the service valve to prevent dirt and debris from entering the valve and to ensure refrigerant doesn't leak out.
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Typical part cost
$2–$10🔒
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Typically lasts
80,000–150,000 mi
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Or about
4.0–10.0 years
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DIY difficulty
1/10
⚠️ Owners Often Notice
If the A/C Service Valve Cap is starting to fail, these are the signs owners most commonly report before it gets worse:
Missing cap
Refrigerant leaks
Poor cooling
System pressure loss
No cold air
Overheating
Related Services
Services commonly performed on or around this part.
Replace A/C Service Valve Cap(s)
No standard interval on file
Inspect A/C Service Valve Cap(s)
No standard interval on file