18-20PSI Replacement Coolant Tank Cap, Black Anodized. Used on WCFab Fabricated Coolant Tanks on 2001+ Duramax or 2004.5-2007 & 2010-2024 6.7L Cummins.
- Matches WCFab Oil and Brake Reservoir Caps
- Black Anodized Finish
- Rated for 18-20 PSI
- Billet Aluminum