Duramax Stock Turbo Drain Line Kit

Replace the rigid factory steel turbo oil drain line on your stock Duramax turbo setup with the G&R Diesel Braided Stainless Steel Turbo Oil Drain Line Kit. This purpose-built kit delivers improved flexibility, durability, and a cleaner, more reliable oil return path while maintaining full compatibility with the factory turbo.

Premium Construction & Materials

Constructed from high-quality braided stainless steel, this oil drain line offers superior resistance to heat, vibration, and abrasion compared to the original hard steel line. The flexible braided design reduces stress on fittings and connections while providing a professional appearance under the hood.

Key Features & Benefits

• Stock Turbo Specific Design: Engineered exclusively for factory Duramax turbo setups (not intended for aftermarket T4 S300/S400 conversions, GRD661007 will work for T4 S300/S400 kits).
• Direct Replacement: Replaces the restrictive hard stock steel oil drain line for a straightforward upgrade.
• Enhanced Flexibility & Durability: Braided stainless construction improves routing options and long-term reliability in the high-heat turbo environment.
• Improved Oil Drainage: Supports efficient oil return from the turbo, helping reduce the risk of oil buildup and related issues.
• Clean, Professional Look: Upgrades the appearance of the engine bay while delivering functional benefits.

Applications

• Duramax engines with the stock/factory turbo configuration (typically 2001–2016 applications)

Note: This kit is designed for stock turbo setups only. For S300/S400 or other aftermarket T4 turbo conversions, use our corresponding G&R Diesel drain line kit (GRD661007).

Why Choose the G&R Diesel Stock Turbo Drain Line Kit?

The factory hard steel oil drain line on Duramax engines can be prone to stress, limited flexibility, and long-term reliability concerns. This braided stainless steel replacement solves those issues with a durable, flexible design that installs as a direct upgrade. Ideal for owners keeping the stock turbo who want improved oil drainage reliability and a cleaner under-hood appearance.

Part Number: GRD661026

This kit pairs well with other G&R Diesel Duramax components for a complete, high-quality turbo and engine bay upgrade package.