The Speedflow 921-08-08 is a straight port union fitting designed to connect a -8AN hose end or fitting to a -8 O-ring boss (ORB) port. Built for reliable sealing and clean installation, it is commonly used across fuel systems, oil systems, and turbo plumbing setups. The ORB side uses an O-ring seal for secure, leak-free installation into machined ports, while the 37° AN flare provides a precise, mechanical seal on the hose side, making it ideal for motorsport, EFI, and high-performance street applications. Features -8AN male to -8 ORB male port union configuration Straight design for direct inline connections O-ring boss (ORB) sealing for leak-free port installation 37° AN flare sealing on hose side (no sealant required) Suitable for fuel, oil, and EFI systems Ideal for motorsport, street car, and track car builds Typical Applications Fuel system connections to pumps, rails, and regulators Oil system plumbing including coolers and filter housings Turbo oil feed and return line connections EFI conversions and custom fabrication setups General AN to ORB port connections in performance builds Fitment Notes ORB side uses an O-ring seal — ensure O-ring is in place and port is clean Do not use thread sealant on ORB side AN flare side seals mechanically — do not use sealant on AN side Designed to screw into a -8 ORB female port and accept a -8AN hose end or fitting Commonly paired with Speedflow 200 Series PTFE Hose -8 Do not overtighten — O-ring provides the seal, not thread interference
