Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting

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. Replaces GM/AC Delco Part Number 15032062

• Replaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting
• Billet direct-fit replacement with 5/8" barb connection
• Clear Anodized finished to resist corrosion
• Replaces GM/AC Delco Part Number 15032062
• More resistant to heat and vibration
• Double O-ring seal