WCFab WCF100155 Billet Heater Core Firewall Fitting

The Wehrli Custom Fab WCF100155 Billet Heater Core Firewall Fitting from replaces the plastic fitting on your 2001-2023 GM 6.6L Duramax. The factory plastic GM Coolant Heater Core Firewall Fitting is a common failure point on Duramax trucks and other GM vehicles. This billet aluminum direct-fit replacement is more resistant to heat and vibration. Prevent leaks with this easy to install upgrade.

Features

• Billet Aluminum
• Double O-Ring Seal
• Clear Anodized Finish To Resist Corrosion
• Replaces Failure Prone Plastic Factory Fitting
• Direct-Fit Replacement With 5/8" Barb Connection