Description
Upgrade your fluid line connections with confidence using the Aeroquip FCM2156 Reducer Fitting — a precision-engineered adapter that bridges the gap between #6 and #4 AN flare lines cleanly and reliably. Built from lightweight aluminum with a striking blue anodized finish, it’s the kind of detail-oriented component that serious builders demand. Whether you’re routing fuel, oil, or brake lines, this fitting delivers a leak-free connection that holds up under real performance conditions.
- Part Number: FCM2156
- Type: Reducer fitting
- Configuration: Straight adapter
- Inlet: 6 AN Male
- Outlet: 4 AN Male
- Material: Aluminum
- Finish: Blue anodized
- Quantity: Sold individually
- Brand: Aeroquip






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