Wehrli WCF100674 T3/T4/T6 Billet -10AN Extended Turbo Oil Drain Fitting Kit

Vehicle Fitment

• Universal - compatible with T3, T4, and T6 small and midframe turbochargers using a 2" on-center bolt spacing oil drain flange

Fitment Notes

• Not compatible with turbochargers mounted in the valley of a Duramax 6.6L engine
• Commonly used on custom Cummins, Duramax, and Power Stroke turbo builds

Features

• Extends the -10AN male drain fitting 4" away from the turbo drain flange for easier wrench access
• CNC machined from billet aluminum with a durable black anodized finish
• Reusable O-ring seal eliminates the leaks common with paper gasket drain flanges
• Simplifies oil drain line routing on custom and fabricated turbo installations

Specifications

• Material: Billet aluminum
• Finish: Black anodized
• Fitting size: -10AN male
• Bolt pattern: 2" on-center
• Sealing method: Reusable O-ring

Included Components

• 1x Billet aluminum turbo drain flange
• 1x Extended -10AN drain fitting
• Reusable O-ring seal

Product Description

Wrenching on a turbo's oil drain fitting is a lot easier when it's not buried right against the center section - this kit relocates the -10AN drain connection 4" away from the flange, giving you real clearance to route and tighten the fitting without fighting for space.

Machined from billet aluminum with a black anodized finish, it replaces the failure-prone paper gasket at the turbo connection with a reusable O-ring seal, cutting out a common source of oil drain leaks. A practical upgrade for anyone building a custom T3/T4/T6 turbo setup where drain routing and long-term reliability matter.