Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting

Wehrli Model 100155

*ALLOW 5-7 DAY LEAD TIME FOR SHIPMENT!

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 and Dorman Part Number 800-409

- 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

Also fits:

• 2001-2023 Duramax
• 2002-2005 Cadillac Escalade
• 2002-2005 Chevrolet Avalanche
• 2007-2010 Chevrolet Express
• 2004-2009 Chevrolet Kodiak
• 1999-2013 Chevrolet Silverado 1500
• 2000-2014 Chevrolet Silverado 2500/3500 (Gas)
• 2000-2005 Chevrolet Suburban
• 2000-2004 Chevrolet Tahoe
• 2007-2010 GMC Savana
• 1999-2013 GMC Sierra 1500
• 2000-2014 GMC Sierra 2500/3500 (Gas)
• 2000-2005 GMC Yukon
• 2003-2009 Hummer H2