
Specifications
- Brand
- Wehrli
- Part #
- WCF205-459-BLK
- UPC
- WCF205-459-BLK

Wehrli Billet ORB Fill Plug for WCFab Rear Differential Covers - Black Anodized
$32.60
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Wehrli Billet ORB Fill Plug for WCFab Rear Differential Covers - Black Anodized. Direct replacement for WCFab differential covers.
Key Features
- Fits WCFab rear differential covers for Duramax/Cummins AAM 11.5" rears, 2020-2024 GM 2500/3500HD, and 2019-2022 Ram 2500/3500.
- Features a #16 (1 inch) O-ring boss thread with an O-ring seal for a secure fit.
- CNC machined from billet aluminum for durability.
- Black anodized finish for corrosion resistance and appearance.
- Uses a 3/4" hex head socket drive for easy installation.
- Made in the USA.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
Wehrli Custom Fab is known for making solid parts for diesel trucks. This billet ORB fill plug is a direct replacement for their WCFab rear differential covers, specifically the AAM 11.5" rear diff cover for Duramax and Cummins trucks, as well as the 2020-2024 GM 2500/3500HD and 2019-2022 Ram 2500/3500 models.
This plug is CNC machined from billet aluminum for a strong, well-built part. It features a #16 (1 inch) O-ring boss thread with an O-ring seal to ensure a leak-free fit, which is crucial for maintaining proper differential fluid levels. The black anodized finish not only looks sharp but also helps protect the aluminum from corrosion. It uses a standard 3/4" hex head socket drive, making installation straightforward.
Specifications
- Brand
- Wehrli
- Manufacturer Part #
- WCF205-459-BLK
- UPC
- WCF205-459-BLK
Frequently Asked Questions
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Wehrli Billet ORB Fill Plug for WCFab Rear Differential Covers - Black Anodized
