Product Description
The WEHRLI CUSTOM FAB WCF100543 BILLET ALUMINUM COOLANT TANK CAP – BLACK ANODIZED is a premium upgrade designed to replace the factory cap on WCFab fabricated coolant tanks. Precision machined from high-quality billet aluminum and finished in a durable black anodized coating, this cap adds both durability and a clean performance look to your engine bay.
Designed to operate at approximately 18-20 PSI, this coolant cap maintains proper system pressure while offering superior durability compared to standard stamped caps. Whether you're refreshing the look of your cooling system or completing a fully fabricated engine bay build, this WCFab billet cap delivers long-term reliability with a sharp anodized finish.
This cap is engineered specifically for WCFab fabricated coolant tanks used on many Duramax and Cummins diesel performance builds. Its precision-machined design ensures proper sealing and dependable operation under demanding conditions.
Key Features:
- Precision CNC-machined billet aluminum construction
- Durable black anodized finish for corrosion resistance
- Maintains proper cooling system pressure at 18-20 PSI
- Designed specifically for WCFab fabricated coolant tanks
- Improves engine bay appearance with billet performance styling
- Direct replacement cap installation
- High-quality performance accessory from Wehrli Custom Fabrication
Fitment:
- 2001-2024 GM Duramax trucks equipped with WCFab fabricated coolant tanks
- 2004.5-2007 Dodge Ram 5.9L Cummins with WCFab fabricated coolant tank
- 2010-2024 Dodge Ram 6.7L Cummins with WCFab fabricated coolant tank
Important Fitment Note: This coolant cap is intended for use with WCFab fabricated coolant tanks. It is not designed to replace a factory coolant reservoir cap on stock tanks.
FAQ
What coolant tanks does the WCF100543 cap fit?
This cap is designed specifically for Wehrli Custom Fab fabricated coolant tanks used on many Duramax and Cummins diesel trucks.
What pressure rating does this coolant cap have?
The cap is engineered to operate at approximately 18-20 PSI, maintaining proper cooling system pressure for high-performance diesel applications.
Is this a billet cap or just a cover?
This is a complete billet aluminum replacement cap, not a decorative cap cover.
Does this improve cooling performance?
While primarily a replacement cap, maintaining proper coolant system pressure helps ensure stable cooling system operation under heavy load and high-performance conditions.
Is the finish durable?
Yes. The cap features a black anodized finish that provides corrosion resistance and long-lasting appearance in harsh engine bay environments.
| Brand | WEHRLI CUSTOM FAB |
| Part Number | WCF100543 |
| UPC | Not publicly listed |
| GTIN | Not publicly listed |
| Operating Pressure | 18-20 PSI |
| Material | CNC Billet Aluminum |
| Finish | Black Anodized |
| Shipping Info | Approximate weight 1 lb. Package dimensions approximately 11 × 9 × 1 inches. |
| Prop 65 | Warning applies. See https://www.P65Warnings.ca.gov |
