RaceFlux Female O-Ring Boss Cap

Cap a male O-ring boss fitting cleanly: this -10AN female ORB cap threads over the male ORB stub and seals on the O-ring — no sealant, and it comes off and reseals whenever needed. Handy for blocking cooler and thermostat fittings during service or capping a supplied ORB port you're not using yet.

Key Features

• Female cap for -10AN male O-ring boss (ORB) fittings
• Seals on the O-ring — no sealant needed, reseals reliably
• Black anodized aluminum construction; reusable

Fitment & Compatibility

• Fits -10AN male ORB fittings (part OC-10)
• Common uses: capping cooler and thermostat fittings during service, sealing unused ORB outlets