#10-#10 O-Ring Flare Adapter Black

The #10-#10 O-Ring Flare Adapter Black (AEROQUIP FCM5953) is an essential hydraulic fitting for any serious automotive or heavy equipment builder working with high-pressure brake, fuel, or transmission fluid systems. This adapter serves as the bridge between two #10 O-ring face seal (ORFS) connections, making it indispensable for custom engine builds, modified fuel systems, and performance hydraulic applications where reliability under extreme pressure is non-negotiable. Whether you're fabricating a custom fuel rail, integrating aftermarket brake components, or constructing a turbo plumbing system, this adapter ensures leak-free, secure connections that withstand the demands of modified powerplants.

Manufactured by AEROQUIP—a trusted name in OEM and performance hydraulic systems—this black anodized aluminum adapter features dual #10 ORFS ports that create superior face-to-face sealing compared to traditional NPT or JIC fittings. The O-ring design eliminates the need for thread sealant tape, reducing the risk of contamination in critical fluid circuits and preventing leaks that plague improvised connections. With a compact footprint (2.3 x 1.2 x 3.75 inches) and minimal weight (0.09 lbs), this adapter integrates seamlessly into tight engine bay layouts while maintaining the structural integrity required for sustained high-pressure operation in turbocharged, supercharged, and naturally aspirated performance engines.

Professional mechanics, engine builders, and automotive enthusiasts rely on the #10-#10 O-Ring Flare Adapter Black for applications demanding precision fitment and absolute dependability—from fuel system upgrades and custom coolant routing to transmission cooler installations and pneumatic control circuits. Its black finish resists corrosion in engine compartments while maintaining a clean, factory-like appearance in custom builds. Installation is straightforward: hand-tighten the O-ring face seal connections until snug, then apply final torque with an appropriate wrench to create a gas-tight seal without over-tightening, which could damage the seal surfaces and compromise system integrity.