Wehrli 1999-2023 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. 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