RB Billet Oil Management Hub Adapter 

The Ultimate RB Oil Management Hub. One Hub. Endless Plumbing Possibilities.

Stop welding fittings into your sump.
Stop trying to merge multiple oil returns into restrictive Y-pieces.
Stop compromising your oil system.

Introducing the Boost Doc Billet Oil Management Hub, the next evolution in RB oil system design. Purpose-built for high-horsepower street cars, drift cars, drag cars, circuit builds and professional engine builders, this isn't simply another oil drain fitting.

It's a complete oil management solution.

Designed to transform a single 3/4" BSP oil drain into three dedicated AN10-ORB ports, the Boost Doc Oil Management Hub provides a clean, modular and professional way to manage every major oil return on your engine.

Whether you're plumbing a turbo oil drain, cylinder head drain, catch can return or custom oil circuit, this hub eliminates unnecessary fabrication while creating a cleaner, more serviceable engine bay.

Built from CNC machined 6061 billet aluminum and finished in a durable black anodizing, this is the fitting you'll only need to buy once.

Why the Boost Doc Oil Management Hub Exists

As RB engine power levels continue to climb, so do oil management demands.
Large-frame turbochargers return greater oil volume.
High-RPM engines retain more oil in the cylinder head.
Modern catch can systems often require dedicated gravity-fed returns.
The traditional solution has always been to:

❌ Weld multiple fittings into the sump.

❌ Merge drains together.

❌ Drill and modify expensive oil pans.

❌ Create unnecessary restriction and additional leak points.

The Boost Doc Oil Management Hub eliminates all of that in one single part.

Simply install the hub into the factory Turbo oil drain location and instantly gain three independent AN10 ORB ports, ready for whatever your build demands.

No welding.
No fabrication.
No compromise.
Just clean, professional oil plumbing.

Why It's Better Than Traditional Oil Drain Fittings

Unlike conventional oil drain adapters that provide a single outlet, the BoostDoc hub creates a central oil distribution point for the hot side of your engine.

This allows you to run dedicated returns for:

✅ Turbo oil drain

✅ Cylinder head drain

✅ Catch can return

✅ Second head drain option

Because every return has its own dedicated port, plumbing becomes significantly cleaner and easier to service while reducing the need for restrictive joiners and unnecessary fittings.
The result is an engine bay that looks as professional as it performs.

Features

✅ CNC machined from aerospace-grade 6061 billet aluminum

✅ Durable black anodized finish

✅ Direct 3/4" BSP thread

✅ 3 × AN10 ORB O-ring sealed ports

✅ Modular plumbing design

✅ Eliminates welding additional sump fittings

✅ Simplifies turbo oil plumbing

✅ Makes head drain plumbing effortless

✅ Perfect for catch can return systems

✅ Serviceable and future-proof design

✅ Engineered and designed by Boost Doc

Fitment:

• Fit the unit before installing AWD sumps and adapters.

• Clean the block with evaporation spray like brake clean 

• Use thread lock when installing.

Vehicle & Engine Compatibility

Designed to suit rear-wheel-drive Nissan RB engine blocks including:

• RB20DET

• RB25DE

• RB25DET

• RB25 NEO

• RB26DETT

• RB30E

• RB30ET

• RB Hybrid engine combinations

Please confirm your engine uses the factory 3/4" turbo side oil drain port prior to ordering.

Need Help?

Not sure if this hub suits your RB engine or oil system layout?

Contact the Boost Doc team with your engine combination and planned plumbing setup. We'll help you build the cleanest and most reliable oil system possible.

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The Benchmark in RB Oil Management. Designed to Eliminate Welding. Engineered to Simplify Plumbing. Built for Big Boost.