Description
A reliable union fitting is the backbone of any well-engineered fluid system—whether you’re running fuel, oil, or coolant lines on your race car or high-performance build. The Earls #4 Steel Union delivers the durability and leak-free performance you need when precision connections matter. This straight adapter eliminates weak points in your plumbing and ensures consistent flow without compromises.
- Fitting Type: Straight Union
- Size: #4 AN
- Connection: Male to Male
- Material: Steel
- Finish: Natural
- Installation: Bolt-on adapter
- MPN: 961504ERL
- Fitment: Universal (AN standard)
- Quantity: Single unit






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