Description
When your fuel or fluid lines demand a precise size transition, the Aeroquip FCM2188 #10 to #4 Union Reducer delivers a clean, leak-free connection you can count on. Built from lightweight aluminum with a striking blue anodized finish, this fitting is as good-looking as it is functional. Whether you’re building a race car, custom street machine, or performance hydraulic system, this adapter gets the job done right.
- Part Number: FCM2188
- Type: Union Reducer
- Configuration: Straight
- Inlet: -10 AN Male
- Outlet: -4 AN Male
- Material: Aluminum
- Finish: Blue Anodized
- Sold: Individually
Aeroquip has been a trusted name in performance fittings for decades, and the FCM2188 is a perfect example of their commitment to quality. The blue anodized coating not only looks sharp in any engine bay but also provides excellent corrosion resistance for long-lasting durability. Grab one today and make that plumbing connection with total confidence.






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