Holden Commodore VL RB30ET + Holset Super HX30W Turbo Oil Drain Hose Kit

High-Flow Oil Drain Solution for RB30ET Holset Turbo Upgrades

When upgrading the Holden Commodore VL RB30ET to a Holset Super HX30W, a new oil drain solution is required to properly support the turbocharger’s oil return needs.

Many aftermarket drain flanges use undersized internal ports, which can restrict oil flow and lead to oil backup inside the bearing housing—resulting in smoking issues and, in severe cases, premature turbo damage.

This Gryphontek high-flow turbo oil drain hose kit is engineered specifically for Holset applications, featuring a CNC-machined drain flange with an enlarged bottom drain port and a large-diameter NBR oil drain hose.

The design ensures smooth, gravity-fed oil return under high boost and temperature, making it ideal for RB30ET top-mount Holset HX30W builds.

Key Features

‣ Application: Holden Commodore VL RB30ET factory turbo engine
‣ Turbo Compatibility: Holset Super HX30W
‣ Mounting Type: Top-mount turbo setups
‣ High-Flow Drain Design: Enlarged bottom drain port to prevent oil restriction and CHRA oil backup
‣ Hose Construction: Large-diameter high-temperature NBR oil drain hose for continuous heat exposure
‣ Flange Material: 6061-T6 CNC-machined aluminum Holset drain flange
‣ Fittings: Mild-steel oil drain fittings for secure sealing under RB30ET vibration
‣ Gasket: Interface N-8092 1 mm non-asbestos gasket
‣ Hardware: Stainless hose clamps + class 8.8 high-tensile bolts
‣ Reliability Benefit: Reduces smoking risk and protects the turbo from oil pooling caused by restrictive drain designs
‣ Custom Length Option: Hose length can be customized to suit different top-mount manifold layouts

Kit Includes

• High-flow NBR turbo oil drain hose
• 6061-T6 CNC-machined Holset Super HX30W drain flange (enlarged bottom port)
• 1 mm Interface N-8092 oil drain gasket
• Mild-steel oil drain fittings
• High-tensile bolts
• Hose clamps

Protect Your Holset Turbo With a Proper High-Flow Oil Drain

Holset turbos demand a high-flow oil return system to operate safely and reliably.
This Gryphontek oil drain kit eliminates the restriction issues commonly found in undersized aftermarket flanges and provides the flow capacity required for high-output RB30ET builds.

⚙️ Upgrade your RB30ET with a high-flow oil drain system engineered specifically for Holset Super HX30W turbo applications.