Thermo King Transport Refrigeration Brass Half Union Coupling 550459
Official OEM Thermo King parts catalog entry for the Thermo King Coupling Half Union Brass 550459, 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 Coupling Half Union Brass 550459 delivers OEM-grade connection reliability for temperature-controlled fleets, ensuring durable, leak-resistant joints and simplified service access in transport refrigeration applications.
This brass half union coupling supports efficient, dependable connections on reefer trailers and truck-mounted Thermo King units, helping fleets maximize uptime and protect perishable loads across long hauls in West Texas and the Permian Basin.
- OEM Brass Construction – Corrosion-resistant material ensures long service life and compatibility with refrigeration lines.
- Half Union Design – Enables quick disassembly for maintenance and diagnostics without cutting lines, reducing downtime.
- Leak-Resistant Connection – Precision-machined seating supports secure seals for temperature control integrity.
- Serviceability – Simplifies routine inspections and repairs on Smart Reefer SR-4, Precedent, and similar Thermo King systems where OEM fittings are specified.
- Fleet-Grade Reliability – Delivers consistent mechanical performance across heavy-duty refrigerated transport operations in Amarillo, Lubbock, Odessa, and beyond.
Product Details
| Part Number | 550459 |
| Material | Brass |
| Type | Coupling Half Union |
| Application | Thermo King transport refrigeration and HVAC lines |
| Manufacturer | Thermo King / OEM |
Thermo King Coupling Half Union Brass 550459 integrates with transport refrigeration plumbing where OEM fittings are required for secure temperature control systems. Exact installation orientation and mating fittings follow Thermo King service specifications.
Efficiency & Sustainability
Brass components like the Coupling Half Union Brass 550459 support long-term system efficiency by maintaining tight seals and minimizing refrigerant loss. Using OEM-specified fittings helps meet regulatory and fleet sustainability goals by reducing service-related leaks and extending component life. This part aligns with modern Thermo King technology strategies, including Smart Reefer SR-4 monitoring, to support fuel-efficient cooling and responsible refrigerant stewardship.
Installation & Maintenance Tips
Install using OEM-recommended torque values and compatible fittings. Use OEM clamps and sealing practices to ensure a leak-free joint. Inspect the union during scheduled maintenance intervals and replace any mating seals or gaskets per Thermo King service guidance to preserve temperature control reliability.
Real-World Applications
The Coupling Half Union Brass 550459 fits refrigerant and service lines on reefer trailers, truck-mounted refrigeration units, and fixed transport refrigeration systems. It supports fast field service during route-side repairs and scheduled depot maintenance, helping fleets maintain product integrity across long hauls.
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 this coupling compatible with Thermo King Precedent units?
A: Yes. The coupling half union brass 550459 fits Thermo King refrigeration plumbing where the OEM specifies a brass half union connection.
Q: How does this fitting support fleet uptime?
A: The half union design enables rapid disassembly for inspection and repair, reducing service time and preserving temperature control on reefer trailers and truck units.
Q: Are replacement seals required during installation?
A: Follow Thermo King service guidelines and replace seals or gaskets as recommended to ensure a reliable, leak-free joint.
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 Coupling Half Union Brass 550459, 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 Coupling Half Union Brass 550459 delivers OEM-grade connection reliability for temperature-controlled fleets, ensuring durable, leak-resistant joints and simplified service access in transport refrigeration applications.
This brass half union coupling supports efficient, dependable connections on reefer trailers and truck-mounted Thermo King units, helping fleets maximize uptime and protect perishable loads across long hauls in West Texas and the Permian Basin.
- OEM Brass Construction – Corrosion-resistant material ensures long service life and compatibility with refrigeration lines.
- Half Union Design – Enables quick disassembly for maintenance and diagnostics without cutting lines, reducing downtime.
- Leak-Resistant Connection – Precision-machined seating supports secure seals for temperature control integrity.
- Serviceability – Simplifies routine inspections and repairs on Smart Reefer SR-4, Precedent, and similar Thermo King systems where OEM fittings are specified.
- Fleet-Grade Reliability – Delivers consistent mechanical performance across heavy-duty refrigerated transport operations in Amarillo, Lubbock, Odessa, and beyond.
Product Details
| Part Number | 550459 |
| Material | Brass |
| Type | Coupling Half Union |
| Application | Thermo King transport refrigeration and HVAC lines |
| Manufacturer | Thermo King / OEM |
Thermo King Coupling Half Union Brass 550459 integrates with transport refrigeration plumbing where OEM fittings are required for secure temperature control systems. Exact installation orientation and mating fittings follow Thermo King service specifications.
Efficiency & Sustainability
Brass components like the Coupling Half Union Brass 550459 support long-term system efficiency by maintaining tight seals and minimizing refrigerant loss. Using OEM-specified fittings helps meet regulatory and fleet sustainability goals by reducing service-related leaks and extending component life. This part aligns with modern Thermo King technology strategies, including Smart Reefer SR-4 monitoring, to support fuel-efficient cooling and responsible refrigerant stewardship.
Installation & Maintenance Tips
Install using OEM-recommended torque values and compatible fittings. Use OEM clamps and sealing practices to ensure a leak-free joint. Inspect the union during scheduled maintenance intervals and replace any mating seals or gaskets per Thermo King service guidance to preserve temperature control reliability.
Real-World Applications
The Coupling Half Union Brass 550459 fits refrigerant and service lines on reefer trailers, truck-mounted refrigeration units, and fixed transport refrigeration systems. It supports fast field service during route-side repairs and scheduled depot maintenance, helping fleets maintain product integrity across long hauls.
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 this coupling compatible with Thermo King Precedent units?
A: Yes. The coupling half union brass 550459 fits Thermo King refrigeration plumbing where the OEM specifies a brass half union connection.
Q: How does this fitting support fleet uptime?
A: The half union design enables rapid disassembly for inspection and repair, reducing service time and preserving temperature control on reefer trailers and truck units.
Q: Are replacement seals required during installation?
A: Follow Thermo King service guidelines and replace seals or gaskets as recommended to ensure a reliable, leak-free joint.
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.