Thermo King Ungraded Coil Return-Air Temperature Sensor 400975
Official OEM Thermo King parts catalog entry for the Sensor, Ungraded (Coil) 400975, 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 Sensor, Ungraded (Coil) 400975 integrates directly with Thermo King refrigeration system controls to monitor evaporator and return-air temperatures, supporting precise temperature control in transport refrigeration applications.
Thermo King Sensor, Ungraded (Coil) 400975 delivers reliable temperature feedback for refrigerated trailers and transport refrigeration units, helping maintain load integrity, maximize uptime, and protect perishable cargo across West Texas operations.
- OEM Compatibility – Designed for seamless fitment with a wide range of Thermo King units including Super-II, SB, SL, SLX, TS, Spectrum, MD, RD, T-Series, Precedent models, and units using Smart Reefer SR-4 controls.
- Coil and Return-Air Monitoring – Provides accurate sensing at evaporator coils and return air locations to support precise temperature control and defrost management.
- Durable OEM Construction – Built to Thermo King engineering standards for dependable service in mobile refrigeration environments and harsh operating conditions common to Amarillo, Lubbock, Odessa, and the Permian Basin.
- Control Integration – Interfaces with Thermo King control platforms to support compressor cycling, defrost termination, and alarm diagnostics for improved fleet uptime.
- Service-Ready Replacement – Simplifies maintenance and parts management for fleets seeking predictable replacement intervals and reduced downtime.
Product Details
| Part Number | 400975 |
| Product Name | Sensor, Ungraded (Coil) |
| Primary Use | Evaporator coil and return-air temperature sensing |
| Manufacturer | Thermo King (OEM) |
| Applications | Reefer trailers, refrigerated trucks, transport refrigeration units |
Thermo King Sensor, Ungraded (Coil) 400975 supports efficient temperature control strategies across Thermo King platforms, including those that adopt Smart Reefer SR-4 control logic or Diesel Direct Electric configurations. When installed and maintained according to Thermo King guidelines, the sensor helps reduce unnecessary compressor runtime and supports fuel-efficient cooling without compromising cargo temperature consistency.
Use OEM mounting hardware and approved harnesses for secure connections. Inspect sensor connection points during scheduled maintenance intervals and verify control input readings after replacement. For wiring or calibration specifics, consult unit documentation or contact certified technicians at West Texas Thermo King for guidance.
Common installation locations include evaporator coil assemblies, return air ducts, and room-air zones inside reefer trailers and refrigerated trucks. This sensor supports temperature control and defrost termination routines that protect perishable loads during long-haul transport and multi-stop regional routes.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
View all Thermo King PartsBacked by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information or visit the contact page to confirm coverage and service options.
Frequently Asked Questions
Q: Is this sensor compatible with Precedent and S-610-series units?
A: Yes. Thermo King Sensor, Ungraded (Coil) 400975 is compatible with many Precedent and S-610 series units when installed on approved sensing locations; verify unit-specific fitment in the parts manual or with West Texas Thermo King.
Q: Where is the sensor typically installed?
A: Install the sensor at the evaporator coil or in the return-air path to provide accurate temperature feedback for control logic and defrost termination.
Q: Does this sensor support Smart Reefer SR-4 controls?
A: Yes. The sensor integrates with Thermo King control platforms, including systems using Smart Reefer SR-4 strategies, to support efficient temperature management.
Q: How does this part support fleet uptime in West Texas climates?
A: The OEM sensor provides reliable temperature readings under wide ambient conditions, enabling precise control actions that protect cargo and reduce unnecessary runtime, which supports uptime across Amarillo, Lubbock, Odessa, and the Permian Basin.
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 Sensor, Ungraded (Coil) 400975, 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 Sensor, Ungraded (Coil) 400975 integrates directly with Thermo King refrigeration system controls to monitor evaporator and return-air temperatures, supporting precise temperature control in transport refrigeration applications.
Thermo King Sensor, Ungraded (Coil) 400975 delivers reliable temperature feedback for refrigerated trailers and transport refrigeration units, helping maintain load integrity, maximize uptime, and protect perishable cargo across West Texas operations.
- OEM Compatibility – Designed for seamless fitment with a wide range of Thermo King units including Super-II, SB, SL, SLX, TS, Spectrum, MD, RD, T-Series, Precedent models, and units using Smart Reefer SR-4 controls.
- Coil and Return-Air Monitoring – Provides accurate sensing at evaporator coils and return air locations to support precise temperature control and defrost management.
- Durable OEM Construction – Built to Thermo King engineering standards for dependable service in mobile refrigeration environments and harsh operating conditions common to Amarillo, Lubbock, Odessa, and the Permian Basin.
- Control Integration – Interfaces with Thermo King control platforms to support compressor cycling, defrost termination, and alarm diagnostics for improved fleet uptime.
- Service-Ready Replacement – Simplifies maintenance and parts management for fleets seeking predictable replacement intervals and reduced downtime.
Product Details
| Part Number | 400975 |
| Product Name | Sensor, Ungraded (Coil) |
| Primary Use | Evaporator coil and return-air temperature sensing |
| Manufacturer | Thermo King (OEM) |
| Applications | Reefer trailers, refrigerated trucks, transport refrigeration units |
Thermo King Sensor, Ungraded (Coil) 400975 supports efficient temperature control strategies across Thermo King platforms, including those that adopt Smart Reefer SR-4 control logic or Diesel Direct Electric configurations. When installed and maintained according to Thermo King guidelines, the sensor helps reduce unnecessary compressor runtime and supports fuel-efficient cooling without compromising cargo temperature consistency.
Use OEM mounting hardware and approved harnesses for secure connections. Inspect sensor connection points during scheduled maintenance intervals and verify control input readings after replacement. For wiring or calibration specifics, consult unit documentation or contact certified technicians at West Texas Thermo King for guidance.
Common installation locations include evaporator coil assemblies, return air ducts, and room-air zones inside reefer trailers and refrigerated trucks. This sensor supports temperature control and defrost termination routines that protect perishable loads during long-haul transport and multi-stop regional routes.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
View all Thermo King PartsBacked by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information or visit the contact page to confirm coverage and service options.
Frequently Asked Questions
Q: Is this sensor compatible with Precedent and S-610-series units?
A: Yes. Thermo King Sensor, Ungraded (Coil) 400975 is compatible with many Precedent and S-610 series units when installed on approved sensing locations; verify unit-specific fitment in the parts manual or with West Texas Thermo King.
Q: Where is the sensor typically installed?
A: Install the sensor at the evaporator coil or in the return-air path to provide accurate temperature feedback for control logic and defrost termination.
Q: Does this sensor support Smart Reefer SR-4 controls?
A: Yes. The sensor integrates with Thermo King control platforms, including systems using Smart Reefer SR-4 strategies, to support efficient temperature management.
Q: How does this part support fleet uptime in West Texas climates?
A: The OEM sensor provides reliable temperature readings under wide ambient conditions, enabling precise control actions that protect cargo and reduce unnecessary runtime, which supports uptime across Amarillo, Lubbock, Odessa, and the Permian Basin.
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.
