How to replace the Heater Control Valve on GMC C3500?

Draining the cooling system should be the first step before heater water valve replacement. The first step in this process requires removal of the access panel nut which is located near the pollen filter along with the access panel itself. Begin the replacement by disconnecting hoses as well as the vacuum hose and remaining clamps from the hot water flow control valve before proceeding to remove the valve. Follow the installation process by putting the new hot water flow control valve into position then reconnect all hoses followed by hose clamps and vacuum hose. Replace the access panel and attach the access panel nut especially until it is fully seated and not damaged. Finally, fill the cooling system.

OEM GMC C3500 Heater Control Valve

HVAC Heater Control Valve

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GMC C3500 Control Valve Part Number: 12380318
$31.09 MSRP: $58.02
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Product Specifications
- Other Name: Valve, Heater; Heater Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Control Valve Part Number: 52467121
Product Specifications
- Other Name: Valve, Temperature; Heater Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-1996 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Control Valve Part Number: 52456347
Product Specifications
- Other Name: Valve, Temperature; Heater Control Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Control Valve Part Number: 15545676
Product Specifications
- Other Name: Valve Assembly-Auxiliary Heater Water Shutoff; Heater Control Valve; Valve, Heater
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Control Valve Part Number: 14040876
Product Specifications
- Other Name: Valve Assembly, Auxiliary Heater Water Shutoff; Heater Control Valve; Valve, Heater
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C3500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS

GMC C3500 Heater Control Valve

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This heater control valve, for the GMC C3500 model, is one of the essential parts that can rightly showcase the durability and efficiency of GMC in its series of the heavy-duty trucks. Typically used in controlling the flow of hot engine coolant to the heater core; this Heater Control Valve makes it possible for the cabin to be warm, thus improving the driving experience. Applicable for a diverse range of GMC C3500 models, including those from the year 1991 and onwards, the Heater Control Valve comes in several types, namely cable operated, vacuum, and embedded with electronic control valves, depending on the customers' operational requirements. Therefore, the importance of the GMC C3500 Heater Control Valve cannot be underscored enough, because it addresses such key concerns, which may lead to leaking coolant, and fluctuations in the temperatures of the air delivered by the vehicle's system due to a faulty valve. It is advised that the Heater Control Valve should be lubricated and replaced often in order to prevent other problems from arising. The most diverse feature regarding the GMC C3500 Heater Control Valve in the Automotive Market is the assembly and way it is built capable to handle the rigorous of both light duty and medium duties. The GMC C3500 Heater Control Valve is a significant element in the quality framework of the car the success of which denotes the quality of GMC vehicles.

GMC C3500 Heater Control Valve Parts and Q&A

Control Valve
12380318
Q: How to replace the Heater Control Valve on GMC C3500?
A:
Draining the cooling system should be the first step before heater water valve replacement. The first step in this process requires removal of the access panel nut which is located near the pollen filter along with the access panel itself. Begin the replacement by disconnecting hoses as well as the vacuum hose and remaining clamps from the hot water flow control valve before proceeding to remove the valve. Follow the installation process by putting the new hot water flow control valve into position then reconnect all hoses followed by hose clamps and vacuum hose. Replace the access panel and attach the access panel nut especially until it is fully seated and not damaged. Finally, fill the cooling system.