Seal up your auxiliary heater plumbing with the Dorman - OE Solutions HVAC Heater Hose Connector 800-422, a Dorman heater hose fitting built to replace a cracked, corroded, or leaking original tee. This is a 5/8 in. x 5/8 in. x 3/4 in. heater hose tee that ties coolant lines together at the auxiliary heater circuit, and it drops in as a direct-fit replacement for the 1996-1999 Chevrolet Tahoe and Suburban (C1500, C2500, K1500, K2500), the 1996-1999 GMC Yukon and Suburban (C1500, C2500, K1500, K2500), and the 1999 Cadillac Escalade. See the Buyer's Guide tab for the full engine-level fitment.
- Quality replacement: engineered to install like the original equipment connector on the listed applications.
- Durable construction: made of quality materials for a precise fit and leak-free durability.
- Cost-effective: delivers original-equipment quality at a competitive price.
- Performance tested: pressure tested to confirm reliable, leak-free performance.
As a three-way heater hose connector, it joins coolant hoses at the auxiliary heater feed so warm coolant flows to the auxiliary heater core. Signs the original may need replacing include coolant seepage at the joint, a cracked or brittle tee, or low coolant from a leak at the connector. Confirm the correct hose sizes for your setup before installing.
Interchange: 15982138
