Nissan RB20DET RB25DET RB30 + Precision PTE Turbo Oil Drain Hose Kit

High-Flow Oil Drain System for RB Engines Running PTE 6266 / 6466 Top-Mount Turbos

Precision Turbo’s PTE 6266 and 6466 are among the most popular high-flow turbochargers for RB20DET, RB25DET, and RB30 builds, capable of supporting significant horsepower gains in top-mount configurations.

Due to their larger CHRA oil volume and altered turbo height compared to the factory setup, a proper high-flow oil drain solution is required to prevent oil pooling, smoking, and return-line restriction.

This Gryphontek turbo oil drain hose kit includes a CNC-machined PTE-pattern drain flange, a large-diameter high-temperature NBR drain hose, heavy-duty steel fittings, a 1 mm non-asbestos gasket, and high-tensile bolts.

Engineered specifically for high-flow turbo applications, it ensures unrestricted oil evacuation for top-mount PTE systems on RB engines.

Key Features

‣ Application: Nissan RB20DET / RB25DET / RB30 — Skyline R32 / R33 / R34 (top-mount turbo setups)
‣ Turbo Compatibility: Precision Turbo PTE 6266 / 6466
‣ High-Flow Design: Enlarged drain hose & optimized flange passage to prevent oil backup on large-frame CHRAs
‣ Hose Construction: Large-diameter high-temp NBR oil drain hose designed for increased PTE oil volume
‣ Flange Material: 6061-T6 CNC-machined aluminum PTE drain flange
‣ Fittings: Mild-steel drain fittings with secure sealing under RB engine vibration
‣ Gasket: Interface N-8092 1 mm non-asbestos gasket
‣ Hardware: Stainless clamps + class 8.8 high-tensile bolts
‣ Performance Benefit: Supports consistent oil evacuation under high boost, extended RPM, and elevated CHRA temperature
‣ Custom Length Option: Optional hose length for unique manifold layouts and different top-mount turbo positions

Kit Includes

• Large-diameter high-flow NBR oil drain hose
• 6061-T6 CNC-machined PTE drain flange
• 1 mm Interface N-8092 gasket
• Mild-steel oil drain fittings
• High-tensile bolts
• Hose clamps

High-Flow Oil Return for Precision PTE Top-Mount RB Turbo Builds

Large-frame Precision turbos demand a high-flow oil return path—especially in top-mount configurations where turbo height and angle change the drain geometry.
This Gryphontek kit provides the correct flange, oversized hose, and high-temperature components needed for reliable drainage on PTE 6266 / 6466 RB builds.

⚙️ Upgrade your RB top-mount turbo system with a high-flow oil drain kit engineered for PTE 6266 / 6466.