Description
Part Number: AF139-06-04BLK
AeroFlow -6 AN to -4 AN Reducer Adapter Fitting – Black
Engineered for high-performance fluid transfer systems, this precision AeroFlow AN reducer fitting seamlessly steps down line sizes while ensuring maximum flow efficiency and zero leakage in harsh motorsport environments.
Key Features
- ✓ Precision CNC-machined from 6061-T6 billet aluminium
- ✓ Durable hard-anodised black finish for superior corrosion resistance
- ✓ Proven 37° JIC flare sealing surface for high-pressure reliability
- ✓ Smooth transition design to minimise fluid turbulence and restriction
- ✓ Fully compatible with race fuels, pump petrol, E85, ethanol, oil, and coolant
Technical Specifications
| Brand | AeroFlow Performance |
|---|---|
| MPN | AF139-06-04BLK |
| Fitting Size 1 | -6 AN (9/16″-18 UNF) |
| Fitting Size 2 | -4 AN (7/16″-20 UNF) |
| Material | 6061-T6 Billet Aluminium |
| Finish | Black Anodised |
What’s Included in the Box
- 1x AeroFlow -6 AN to -4 AN Reducer Fitting in Black Anodised Finish
AeroFlow Performance products are globally renowned for premium quality manufacturing and motorsport reliability. At JP Racing, we carry extensive UK inventory of genuine AeroFlow fittings and adapters, giving you access to fast UK dispatch, competitive pricing, and expert technical advice for your performance build.







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