WCFAB 1999-2022 GM Billet Coolant Heater Core Firewall Fitting

Replaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting- Billet direct-fit replacement with 5/8" barb connection- More resistant to heat and vibration- Double O-ring seal- Clear Anodized finished to resist corrosion- Replaces GM/AC Delco Part Number 15032062 and Dorman Part Number 800-409 The factory plastic GM Coolant Heater Core Firewall Fitting is a common failure point on Duramax trucks and other GM vehicles. Our made in the USA, billet aluminum direct-fit replacement is more resistant to heat and vibration. Prevent leaks with this easy to install upgrade.