Russell Performance -4 AN Straight Swivel Coupler

This is a Russell Performance -4 AN Straight Swivel Coupler, part number 640140. It's a lightweight adapter fitting made from 6061-T6 aluminum, designed to connect AN hose ends to various components in your fuel or oil system. These fittings are precision machined to ensure a positive seal, even at maximum operating pressures, which is crucial for preventing leaks in high-performance applications.

The swivel design allows for easier alignment during installation, making it simpler to route your hoses without kinking or stressing the connection. Russell offers these fittings in several finishes to match your build's aesthetic, and this particular model is anodized red and blue for a distinct look. It's a solid option for custom fuel lines, oil cooler setups, or any application where you need to adapt AN fittings to different components.