Description
When precision and reliability matter most, the Aeroquip FCM5048 delivers a clean, leak-free connection between mismatched AN line sizes with zero compromise. Built for performance enthusiasts who refuse to cut corners, this straight union adapter makes routing your fuel, oil, or brake lines seamless and professional-looking. The sleek black anodized finish doesn’t just look great — it also adds a layer of corrosion resistance to keep things running clean for the long haul.
- Brand: Aeroquip
- MPN: FCM5048
- Type: Straight union adapter
- Inlet: 4 AN Male
- Outlet: 3 AN Male
- Material: Aluminum
- Finish: Black anodized
- Configuration: Straight
- Sold: Individually
Whether you’re building a race car, upgrading a street machine, or fine-tuning a dedicated track build, the Aeroquip FCM5048 is a trusted, go-to solution for adapting between #4 and #3 AN flare fittings with confidence.






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