SKU: 16445 | UPC: 690092152536
Vibrant -6AN Female to 5/16in Tube Adapter Fittings with Brass Olive Insert
The Vibrant Performance -6AN Female to 5/16in Tube Adapter Fitting with Brass Olive Insert connects -6AN hose ends to 5/16 inch OD hardline tubing for custom oil cooler and fuel system setups. This universal adapter suits performance vehicles with 5/16in tube lines including drag cars, circle track racers, and street performance builds. It delivers reliable high-pressure fluid transfer with a secure seal to prevent leaks.
Key Features
- CNC Machined Aluminum Body: Built from 6061-T6 billet aluminum for durability, light weight at 0.05 lbs, and resistance to high pressures in oil and fuel systems
- Brass Olive Insert: Provides a precise bite on 5/16in OD tubing with 0.035-0.049in wall thickness for reusable, vibration-resistant connections
- -6AN Female Swivel: Allows 360-degree rotation for straightforward hose end attachment without twisting lines during assembly
- Black Anodized Finish: Protects against corrosion, fuel, and oil exposure while maintaining a professional appearance in engine bays
- Universal Compatibility: Works with standard AN hose assemblies and 5/16in steel or aluminum tubing in custom fabrication projects
Product Notes
- Inspect tubing wall thickness before use to ensure proper ferrule compression
- Pair with Vibrant hard line tubing kits for complete system integrity
- Packaged individually in protective bubble wrap for safe transit
Installation Notes
- Professional installation recommended.
- Pre-swage olive onto tubing using a ferrule swaging tool before inserting into fitting
- Compatible with all -6AN male hose ends from Vibrant or other brands
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Performance Vehicles | Oil Cooler/Fuel Systems |
| 1960+ | Chevrolet | Camaro | All |
| 1960+ | Ford | Mustang | All |
| 1980+ | Honda | Civic | Si/Type R |
Why Choose Vibrant Performance?
- Earned trust of racing professionals and builders worldwide
- Engineered for consistent quality in every performance application
- Offers complete oil and fuel system components as a single source
Frequently Asked Questions
- Q: What tubing dimensions fit this adapter?
A: Designed for 5/16 inch OD tubing with 0.035 to 0.049 inch wall thickness, common in oil cooler and fuel hard lines - Q: What materials are used in construction?
A: 6061-T6 aluminum body with black anodizing and solid brass olive insert for strength and sealing - Q: Does it support high-pressure applications?
A: Rated for AN-standard pressures up to 1000 PSI when installed correctly with compatible hose
Shipping & Handling
- Method: UPS Ground / USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: 3in x 2in x 1in padded envelope
- Weight: 0.05 lbs





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