Thermo King Main Heater Harness B/D5W S 24V + 12 841185
Official OEM Thermo King parts catalog entry for the Main Heater Harness B/D5W S 24V + 12, 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 Main Heater Harness B/D5W S 24V + 12 delivers OEM-grade electrical connectivity for transport heating systems, ensuring dependable power and control integration in Thermo King refrigeration units and reefer trailers. This harness supports streamlined installation and reliable operation for fleets operating across West Texas and the Permian Basin.
Key Features & Customer Benefits
- Dual-Voltage Support – Accommodates 24V system power while integrating necessary 12V components for fuel pumps and control accessories, enabling flexible system configurations.
- Model-Specific Compatibility – Designed for B/D5W heater series applications, ensuring precise connector alignment and reduced installation time for Thermo King heating systems.
- Robust Wiring Construction – Durable wiring and secure terminals maintain signal integrity and resist vibration, enhancing fleet uptime in heavy-duty transport environments.
- OEM Fit and Finish – Matches Thermo King connector types and routing requirements to minimize modification and guarantee a professional, leak-free electrical integration.
- Serviceability – Clear connector layout and labeled circuits simplify diagnostics and routine maintenance, reducing downtime during scheduled inspections.
Product Details
| Part Number | 841185 |
| Product Name | Thermo King Main Heater Harness B/D5W S 24V + 12 |
| Voltage | 24V system with 12V component integration |
| Compatibility | B/D5W heater series; Thermo King transport refrigeration heating systems |
| Application | Reefer trailers, refrigerated trucks, and transport refrigeration auxiliary heaters |
Efficiency & Sustainability
This harness supports energy-efficient heater control by maintaining proper voltage distribution and reliable connections that reduce electrical losses. When installed to OEM standards and paired with Thermo King controls such as Smart Reefer SR-4, the assembly supports precise temperature control and fuel-efficient heating cycles. Proper electrical integrity contributes to reduced idle time and lower operational emissions for temperature-controlled fleets.
Installation & Maintenance Tips
Route harnesses away from heat and sharp edges and secure with OEM clamps or approved fasteners. Verify all connections are snug and corrosion-free and confirm grounding points meet Thermo King specifications. Inspect harnesses during scheduled maintenance intervals and replace any damaged terminals to maintain continuous operation and diagnostic accuracy.
Real-World Applications
The Main Heater Harness B/D5W S 24V + 12 connects heater control modules, fuel dosing pumps, blowers, and sensors in refrigerated trailers and truck-mounted refrigeration units. It supports reliable temperature control for perishable loads during local distribution and long-haul routes, especially in demanding environments across Amarillo, Lubbock, Odessa, and West Texas.
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 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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this harness compatible with D5W-series heaters?
A: Yes. The harness is designed for B/D5W heater series applications and aligns with Thermo King connector standards for these units.
Q: Can the harness support both 24V vehicle systems and 12V heater components?
A: Yes. The harness integrates 24V main power with 12V accessory circuits where required for pumps and control modules.
Q: Does installation require special tools or adapters?
A: Installation follows Thermo King wiring and routing guidelines; common hand tools and OEM clamps provide correct fitment. Certified technicians handle complex integrations.
Q: Where can fleets obtain replacement harnesses and certified installation?
A: West Texas Thermo King supplies OEM Thermo King parts and certified installation services across the region.
Related Resources
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 Main Heater Harness B/D5W S 24V + 12, 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 Main Heater Harness B/D5W S 24V + 12 delivers OEM-grade electrical connectivity for transport heating systems, ensuring dependable power and control integration in Thermo King refrigeration units and reefer trailers. This harness supports streamlined installation and reliable operation for fleets operating across West Texas and the Permian Basin.
Key Features & Customer Benefits
- Dual-Voltage Support – Accommodates 24V system power while integrating necessary 12V components for fuel pumps and control accessories, enabling flexible system configurations.
- Model-Specific Compatibility – Designed for B/D5W heater series applications, ensuring precise connector alignment and reduced installation time for Thermo King heating systems.
- Robust Wiring Construction – Durable wiring and secure terminals maintain signal integrity and resist vibration, enhancing fleet uptime in heavy-duty transport environments.
- OEM Fit and Finish – Matches Thermo King connector types and routing requirements to minimize modification and guarantee a professional, leak-free electrical integration.
- Serviceability – Clear connector layout and labeled circuits simplify diagnostics and routine maintenance, reducing downtime during scheduled inspections.
Product Details
| Part Number | 841185 |
| Product Name | Thermo King Main Heater Harness B/D5W S 24V + 12 |
| Voltage | 24V system with 12V component integration |
| Compatibility | B/D5W heater series; Thermo King transport refrigeration heating systems |
| Application | Reefer trailers, refrigerated trucks, and transport refrigeration auxiliary heaters |
Efficiency & Sustainability
This harness supports energy-efficient heater control by maintaining proper voltage distribution and reliable connections that reduce electrical losses. When installed to OEM standards and paired with Thermo King controls such as Smart Reefer SR-4, the assembly supports precise temperature control and fuel-efficient heating cycles. Proper electrical integrity contributes to reduced idle time and lower operational emissions for temperature-controlled fleets.
Installation & Maintenance Tips
Route harnesses away from heat and sharp edges and secure with OEM clamps or approved fasteners. Verify all connections are snug and corrosion-free and confirm grounding points meet Thermo King specifications. Inspect harnesses during scheduled maintenance intervals and replace any damaged terminals to maintain continuous operation and diagnostic accuracy.
Real-World Applications
The Main Heater Harness B/D5W S 24V + 12 connects heater control modules, fuel dosing pumps, blowers, and sensors in refrigerated trailers and truck-mounted refrigeration units. It supports reliable temperature control for perishable loads during local distribution and long-haul routes, especially in demanding environments across Amarillo, Lubbock, Odessa, and West Texas.
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 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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this harness compatible with D5W-series heaters?
A: Yes. The harness is designed for B/D5W heater series applications and aligns with Thermo King connector standards for these units.
Q: Can the harness support both 24V vehicle systems and 12V heater components?
A: Yes. The harness integrates 24V main power with 12V accessory circuits where required for pumps and control modules.
Q: Does installation require special tools or adapters?
A: Installation follows Thermo King wiring and routing guidelines; common hand tools and OEM clamps provide correct fitment. Certified technicians handle complex integrations.
Q: Where can fleets obtain replacement harnesses and certified installation?
A: West Texas Thermo King supplies OEM Thermo King parts and certified installation services across the region.
Related Resources
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.
