Thermo King Temperature Control Air Pressure Switch 443474
Official OEM Thermo King parts catalog entry for the Thermo King Temperature Control Switch 443474, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King refrigeration system uses the Thermo King Temperature Control Switch 443474 to monitor evaporator air pressure and support precise temperature regulation in transport refrigeration applications. Engineered as an OEM air pressure switch, this component ensures dependable control and consistent cargo protection in demanding reefer operations.
The Thermo King Temperature Control Switch 443474 installs on SBI, SBII, SBIII, and Sentry units and operates at a calibrated setting of 1.0 inches of water column (WC) to support accurate airflow sensing and temperature control.
- OEM Air Pressure Design – Delivers precise pressure monitoring at 1.0 in. WC for stable temperature control and repeatable system response.
- Direct Compatibility – Fits Thermo King SBI, SBII, SBIII, and Sentry refrigeration systems for a reliable, factory-fit replacement.
- Temperature Protection – Supports consistent evaporator airflow sensing to reduce temperature variance and protect perishable cargo.
- Fleet Uptime Focus – Reduces nuisance downtime by maintaining accurate control signals to refrigeration controllers and valves.
- Service-Ready Form – Simplifies diagnostics and replacement during scheduled maintenance intervals for faster turnarounds.
Product Details
| Part Number | 443474 |
| Product Name | Thermo King Temperature Control Switch 443474 |
| Type | Air pressure switch (temperature control function) |
| Operating Setting | 1.0 inches of water column (WC) |
| Compatibility | Thermo King SBI, SBII, SBIII, Sentry refrigeration units |
| Application | Transport refrigeration — reefer trailers and refrigerated trucks |
Efficiency & Sustainability
The Thermo King Temperature Control Switch 443474 supports fuel-efficient cooling and precise control strategies that contribute to overall system efficiency. When installed and maintained to OEM standards, the switch complements Thermo King control architectures and aligns with emissions and efficiency initiatives used across modern fleets, including CARB Evergreen-compliant operations and advanced telematics platforms common to transport refrigeration.
Installation & Maintenance Tips
Use OEM-grade fittings and secure pneumatic connections to preserve switch calibration and prevent air leaks. Inspect the switch during scheduled service intervals and verify the 1.0 in. WC setting as part of routine diagnostics. West Texas Thermo King-certified technicians recommend following Thermo King service procedures for safe removal and installation to maintain system integrity and accuracy.
Real-World Applications
Ideal for reefer trailers, refrigerated vans, and truck-mounted refrigeration where accurate evaporator airflow sensing directly impacts temperature stability. Fleets operating in the Permian Basin and across West Texas rely on this switch to protect temperature-sensitive loads and support predictable delivery windows.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Temperature Control Switch 443474 compatible with Sentry units?
A: Yes, this OEM air pressure switch is specified for use in Thermo King Sentry units and supports accurate evaporator pressure sensing.
Q: What pressure setting does this switch use?
A: The switch operates at a calibrated setting of 1.0 inches of water column (WC) to maintain consistent control feedback.
Q: Can certified technicians install this switch during routine service visits?
A: Yes, West Texas Thermo King-certified technicians install and validate this switch using Thermo King procedures to ensure correct system operation and calibration.
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.
Official OEM Thermo King parts catalog entry for the Thermo King Temperature Control Switch 443474, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King refrigeration system uses the Thermo King Temperature Control Switch 443474 to monitor evaporator air pressure and support precise temperature regulation in transport refrigeration applications. Engineered as an OEM air pressure switch, this component ensures dependable control and consistent cargo protection in demanding reefer operations.
The Thermo King Temperature Control Switch 443474 installs on SBI, SBII, SBIII, and Sentry units and operates at a calibrated setting of 1.0 inches of water column (WC) to support accurate airflow sensing and temperature control.
- OEM Air Pressure Design – Delivers precise pressure monitoring at 1.0 in. WC for stable temperature control and repeatable system response.
- Direct Compatibility – Fits Thermo King SBI, SBII, SBIII, and Sentry refrigeration systems for a reliable, factory-fit replacement.
- Temperature Protection – Supports consistent evaporator airflow sensing to reduce temperature variance and protect perishable cargo.
- Fleet Uptime Focus – Reduces nuisance downtime by maintaining accurate control signals to refrigeration controllers and valves.
- Service-Ready Form – Simplifies diagnostics and replacement during scheduled maintenance intervals for faster turnarounds.
Product Details
| Part Number | 443474 |
| Product Name | Thermo King Temperature Control Switch 443474 |
| Type | Air pressure switch (temperature control function) |
| Operating Setting | 1.0 inches of water column (WC) |
| Compatibility | Thermo King SBI, SBII, SBIII, Sentry refrigeration units |
| Application | Transport refrigeration — reefer trailers and refrigerated trucks |
Efficiency & Sustainability
The Thermo King Temperature Control Switch 443474 supports fuel-efficient cooling and precise control strategies that contribute to overall system efficiency. When installed and maintained to OEM standards, the switch complements Thermo King control architectures and aligns with emissions and efficiency initiatives used across modern fleets, including CARB Evergreen-compliant operations and advanced telematics platforms common to transport refrigeration.
Installation & Maintenance Tips
Use OEM-grade fittings and secure pneumatic connections to preserve switch calibration and prevent air leaks. Inspect the switch during scheduled service intervals and verify the 1.0 in. WC setting as part of routine diagnostics. West Texas Thermo King-certified technicians recommend following Thermo King service procedures for safe removal and installation to maintain system integrity and accuracy.
Real-World Applications
Ideal for reefer trailers, refrigerated vans, and truck-mounted refrigeration where accurate evaporator airflow sensing directly impacts temperature stability. Fleets operating in the Permian Basin and across West Texas rely on this switch to protect temperature-sensitive loads and support predictable delivery windows.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Temperature Control Switch 443474 compatible with Sentry units?
A: Yes, this OEM air pressure switch is specified for use in Thermo King Sentry units and supports accurate evaporator pressure sensing.
Q: What pressure setting does this switch use?
A: The switch operates at a calibrated setting of 1.0 inches of water column (WC) to maintain consistent control feedback.
Q: Can certified technicians install this switch during routine service visits?
A: Yes, West Texas Thermo King-certified technicians install and validate this switch using Thermo King procedures to ensure correct system operation and calibration.
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.
