Description
Part Number: AF177-04
Aeroflow -4AN Aluminium Crush Washers (10 Pack)
Precision-engineered aluminium crush washers designed to provide a reliable, leak-free seal on -4AN fluid fittings and hydraulic lines.
Key Features
- ☑ Manufactured from soft, high-purity aluminium for optimal compression and sealing.
- ☑ Engineered specifically for -4AN hose ends, adapters, and banjo fittings.
- ☑ Deforms evenly under torque to eliminate micro-gaps and potential fluid leaks.
- ☑ Supplied in a convenient pack of 10 for race prep and workshop servicing.
Technical Specifications
| Brand | Aeroflow Performance |
|---|---|
| Manufacturer Part Number | AF177-04 |
| Fitting Size | -4AN |
| Inside Diameter (I.D.) | 11mm / 11.25mm (7/16″) |
| Outside Diameter (O.D.) | 17mm (21/32″) |
| Thickness | 0.95mm (1/32″) |
| Material | Aluminium / Alloy |
| Pack Quantity | 10 Pack |
What’s Included in the Box
- 10 x Aeroflow -4AN Aluminium Crush Washers (AF177-04)
Aeroflow Performance is renowned globally for high-spec motorsport hardware built to withstand harsh track environments. When setting up critical oil, fuel, or hydraulic plumbing, using fresh crush washers ensures total system integrity. JP Racing is proud to offer official Aeroflow products with fast UK shipping and technical support.







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