Product Description
The WEHRLI CUSTOM FAB WCF100674 T3 T4 T6 SMALL MIDFRAME TURBOCHARGER -10AN EXTENDED OIL DRAIN FITTING KIT is a high-quality billet solution designed to improve turbocharger oil drain routing and installation accessibility. Built from CNC machined billet aluminum with a durable black anodized finish, this extended oil drain fitting lowers the connection point of the drain line away from the turbocharger center section, making installation easier and helping prevent oil drain routing issues.
This fitting kit is engineered for performance turbocharger setups utilizing T3, T4, or T6 small and midframe turbochargers with a 2-inch on-center bolt pattern. The extended -10AN male fitting positions the oil drain connection approximately 4 inches from the turbo drain flange, allowing improved clearance for wrench access and easier routing of oil drain hoses during custom turbo builds.
Unlike traditional paper gasket drain flanges, the WCFab design incorporates a reusable O-ring sealing system that eliminates the common leaks associated with paper gaskets. This makes the WCF100674 ideal for high-performance builds, custom turbo installations, racing setups, and fabricated turbo systems where durability and reliability are critical.
Key Features:
- CNC machined billet aluminum construction
- Black anodized corrosion-resistant finish
- Extended -10AN male drain fitting for improved clearance
- Lowers drain connection for easier wrench access
- Reusable O-ring seal eliminates gasket leaks
- Compatible with T3, T4, and T6 small or midframe turbochargers
- Fits turbo drain flanges with 2-inch on-center bolt spacing
- Ideal for custom turbo systems and performance builds
- Made in the USA
Fitment:
- Universal fit for turbocharger systems using T3, T4, or T6 small / midframe turbochargers
- Requires turbocharger oil drain flange with 2-inch bolt spacing
- Commonly used on custom diesel performance builds including Cummins, Duramax, and Power Stroke applications
Important Fitment Note:
- Not compatible with Duramax valley-mounted turbocharger configurations
FAQ
What problem does this turbo drain fitting solve?
This fitting lowers the oil drain hose connection point away from the turbo center section, allowing easier wrench access and simplifying routing for the turbo oil drain line.
What turbochargers does this fitting work with?
The WCF100674 is designed for T3, T4, and T6 small or midframe turbochargers that use a 2-inch on-center bolt pattern on the oil drain flange.
Why does this fitting use an O-ring instead of a paper gasket?
The reusable O-ring seal eliminates the common oil leaks caused by paper gaskets while allowing repeated removal and installation without replacing the seal.
Is this part intended for custom turbo builds?
Yes. This fitting is commonly used in custom turbocharger setups, race builds, and fabricated turbo kits where proper oil drain routing and service access are important.
Is this compatible with valley mounted Duramax turbos?
No. This fitting is not compatible with Duramax valley-mounted turbocharger configurations.
| Brand | WEHRLI CUSTOM FAB |
| Part Number | WCF100674 |
| UPC | Not publicly listed |
| GTIN | Not publicly listed |
| Material | CNC Machined Billet Aluminum |
| Finish | Black Anodized |
| Fitting Size | -10AN Male |
| Drain Extension | Approx. 4 Inches from Turbo Drain Flange |
| Shipping Info | Approx weight 2 lbs. Typical package size approx 4" x 4" x 5". |
| Country of Origin | USA |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |