Radium Engineering 10AN ORB Swivel Banjo PCV Valve to 3/8in SAE Male

Precision PCV Control with Full Swivel Capability: The Billet Aluminum Banjo Fitting Built for Real Boost Builds

The Radium Engineering RAD20-1000-10375-PCV is a 10AN ORB swivel banjo PCV valve fitting machined from 6061 billet aluminum with a Type-II anodized finish. It combines a built-in PCV valve function with a 360-degree swivel body that positions after installation, routing a 3/8-inch SAE hose barb exactly where your build requires it. Designed for positive crankcase ventilation circuits in performance and turbocharged applications, this fitting uses FKM (Viton) and silicone O-rings to handle pressures up to 150 PSI and is rated safe for fuel vapors, oil vapor, and boost pressure environments. At just 0.797 inches tall, it installs cleanly even in tight engine bay locations.

Key Features

• Built-in one-way PCV valve eliminates the need for a separate check valve in the circuit
• 360-degree swivel body repositions after installation for perfect hose routing in any orientation
• 10AN ORB (7/8-14 threads) inlet seals with an O-ring for leak-free performance at the port
• 3/8-inch SAE barb outlet accepts standard 3/8-inch hose for crankcase vent lines
• 6061 billet aluminum construction with Type-II anodize for corrosion and heat resistance
• FKM (Viton) and silicone O-rings handle fuel vapors, oil mist, and boost pressure
• Rated to 150 PSI, suitable for forced induction builds
• Ultra-low 0.797-inch installed height for tight packaging

Specifications

What's Included

• 1x 10AN ORB Swivel Banjo PCV Valve Fitting with 3/8in SAE Barb
• Pre-installed FKM and silicone O-rings

Frequently Asked Questions

The built-in one-way PCV (Positive Crankcase Ventilation) valve allows crankcase vapors to exit the engine but prevents backflow into the crankcase. This eliminates the need to install a separate inline check valve in your crankcase ventilation circuit, simplifying the build and reducing potential leak points.

The 10AN ORB (O-Ring Boss) inlet uses 7/8-14 threads. The O-ring boss design seals at the boss face rather than at the threads, providing a superior leak-free seal compared to NPT fittings at the same pressure ratings.

The barb outlet is sized for 3/8-inch (9.5mm) inside diameter hose, which is a common size for crankcase vent lines and PCV system hoses in performance builds.

Yes. With a 150 PSI pressure rating and FKM (Viton) O-rings, this fitting is well suited for forced induction applications where crankcase pressure management is critical. The PCV valve function helps prevent boost pressure from forcing its way back through the vent circuit.

The banjo body threads onto your AN ORB port and, once properly torqued, the barb outlet section rotates freely through a full 360 degrees. This allows you to orient the hose barb in the exact direction needed for your hose routing without repositioning the port fitting itself.

Radium Engineering uses FKM (Viton) and silicone O-rings. FKM is compatible with fuel vapors, oil, and most automotive fluids. Silicone adds flexibility at a range of temperatures. Together they ensure the fitting stays sealed across the temperature and chemical exposure range of a typical performance crankcase ventilation circuit.

This fitting is designed for standard 10AN ORB ports with 7/8-14 thread pitch. Always verify your block or valve cover port is a true ORB port (machined seat for O-ring sealing) rather than an NPT port before installation, as mismatching thread types will cause leaks or damage.

The installed height is 0.797 inches (20.2mm), which is very compact. This matters in tight engine bay environments, such as when the fitting must clear a valve cover, intake manifold, or firewall without interference.

No. The O-ring comes pre-installed on the fitting. No thread sealant or pipe dope is needed or recommended for ORB fittings. Torque the fitting to the manufacturer's specification for your AN ORB port size to compress the O-ring evenly against the machined seat.

Installation Instructions

1. Identify the 10AN ORB port on your engine where the fitting will be installed. Confirm the port has a machined O-ring boss seat.
2. Inspect the pre-installed O-rings on the fitting for any cuts or deformities before installation.
3. Apply a small amount of clean engine oil or assembly lubricant to the O-ring to ease installation and prevent pinching.
4. Thread the fitting into the ORB port by hand until it seats against the boss face. Do not cross-thread.
5. Torque the fitting to the specification appropriate for a 10AN (7/8-14) ORB connection, typically 20 to 25 ft-lb. Refer to the Radium Engineering documentation and your engine builder's specifications.
6. Rotate the swivel barb to the desired hose routing orientation.
7. Slide the 3/8-inch hose onto the barb outlet and secure with an appropriate clamp.
8. Start the engine and inspect the fitting for leaks before returning to full operation.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.