Move hot coolant to the heater core with the Gates HVAC Heater Hose 23335. It installs as a direct-fit replacement for the 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, 2005-2006 Pontiac Montana, and 2005-2006 Saturn Relay, carrying coolant through the heater circuit so it can reach the cabin heat exchanger. This hose covers the HEATER TO PIPE-1 and PIPE-4 TO HEATER connections in the heater plumbing.
- Job: Carries engine coolant between the cooling system and the heater core to support cabin heat and defrost airflow.
- Routing: Serves the HEATER TO PIPE-1 and PIPE-4 TO HEATER positions on the listed applications.
- Direct fit: A direct-fit replacement for the listed vehicles.
- Signs it may need replacing: Coolant seepage or drips at the hose, a soft, swollen, or cracked hose, low coolant, or weak cabin heat. Diagnose the cause before replacing, as these signs can have other sources.
Interchange: 20497S · 64362 · F10165 · 15814103 · 19129959 · 89023413 · 16073 · Manufacturer part number 23335
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this heater hose do?
It carries engine coolant between the cooling system and the heater core, supporting cabin heat and defrost airflow on the listed vehicles.
Which vehicles does the Gates 23335 fit?
It is a direct-fit replacement for the 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, 2005-2006 Pontiac Montana, and 2005-2006 Saturn Relay. Check the Buyer's Guide tab to confirm your vehicle.
Where does this hose connect?
On the listed applications it serves the HEATER TO PIPE-1 and PIPE-4 TO HEATER connections in the heater coolant plumbing.
What are signs the heater hose may need replacing?
Coolant seepage or drips at the hose, a soft, swollen, or cracked hose, low coolant, or weak cabin heat. Diagnose the cause first, since these signs can have other sources.
What numbers does this part interchange with?
It cross-references 20497S, 64362, F10165, 15814103, 19129959, 89023413, and 16073. The manufacturer part number is 23335.
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