Wehrli Wehrli WCFab Coolant Tank Billet Cap - Black Anodized - WCF100543 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. $40.00 $38.80
