Thermo King 45° Elbow Line Fitting 12 7/8-14TH 559538
Official OEM Thermo King parts catalog entry for the Thermo King Fitting 559538 - 45° 12 7/8-14TH, 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 Fitting 559538 - 45° 12 7/8-14TH supports precise refrigerant and hydraulic line routing on Thermo King refrigeration systems, enabling dependable connections and reduced downtime for temperature-controlled transport operations.
Thermo King refrigeration system components require exact-fit fittings to maintain leak-free service, predictable temperature control, and long-term fleet ROI. West Texas Thermo King supplies this OEM-specified fitting to help fleets in Amarillo, Lubbock, Odessa, and the Permian Basin keep reefers running on schedule.
- OEM Fit – Ensures correct thread engagement and secure sealing for Thermo King line connections, reducing leak risk and service time.
 - 45° Elbow Profile – Facilitates compact routing in tight chassis or refrigeration head locations, improving installation flexibility and airflow management.
 - Thread Specification – 12 7/8-14TH thread pattern provides reliable mechanical coupling to matching Thermo King components and hoses.
 - Fleet Uptime Focus – Designed to support quick replacement during scheduled maintenance to restore temperature control and reduce trailer downtime.
 - Durability Expectations – Built to meet Thermo King OEM standards for transport refrigeration fittings, supporting long service intervals and predictable maintenance costs.
 
Product Details
| Part Number | 559538 | 
| Product | Fitting - 45° 12 7/8-14TH | 
| Angle | 45° elbow | 
| Thread Specification | 12 7/8-14TH | 
| Material | OEM-specified corrosion-resistant metal | 
| Application | Thermo King transport refrigeration line connections and reefer trailers | 
This fitting integrates with Thermo King Precedent-series and contemporary transport refrigeration hardware where 45° line routing and the specified 12 7/8-14TH thread are required. For exact application fitment, reference OEM parts documentation or contact West Texas Thermo King for verification.
Efficiency & Sustainability
Properly fitted connections reduce refrigerant loss and maintain consistent temperature control, supporting fuel-efficient cooling and lower lifecycle emissions. This component complies with Thermo King engineering practices and complements systems such as Smart Reefer SR-4 and Diesel Direct Electric configurations to support CARB Evergreen and fleet sustainability goals.
Installation & Maintenance Tips
Install using OEM-specified torque and sealing methods. Use Thermo King-approved clamps and thread seals where recommended, and inspect fittings during scheduled maintenance intervals. Replace any fitting that shows signs of wear, corrosion, or thread damage to preserve system integrity and temperature control.
Real-World Applications
This 45° fitting is ideal for reefer trailer refrigeration lines, refrigerated trucks, and transport refrigeration heads where compact routing and secure thread engagement are essential. Fleets deploy this fitting during routine service and targeted line routing updates to maintain temperature control across perishable loads.
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 call the service department for confirmation.
Frequently Asked Questions
Q: Is this fitting compatible with Thermo King Precedent units?
A: Yes. This fitting supports Thermo King transport refrigeration connections where a 45° elbow and 12 7/8-14TH thread match the OEM line requirements. Verify unit-specific fitment with OEM documentation or West Texas Thermo King.
Q: Can this fitting be installed during routine service intervals?
A: Yes. Installation follows standard Thermo King service procedures. Use OEM torque values and sealing practices to ensure leak-free operation and maintain uptime.
Q: How does this fitting help fleet efficiency?
A: Proper routing and secure connections prevent refrigerant loss and support consistent temperature control, improving fuel-efficient cooling and reducing unplanned downtime for refrigerated loads.
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 Fitting 559538 - 45° 12 7/8-14TH, 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 Fitting 559538 - 45° 12 7/8-14TH supports precise refrigerant and hydraulic line routing on Thermo King refrigeration systems, enabling dependable connections and reduced downtime for temperature-controlled transport operations.
Thermo King refrigeration system components require exact-fit fittings to maintain leak-free service, predictable temperature control, and long-term fleet ROI. West Texas Thermo King supplies this OEM-specified fitting to help fleets in Amarillo, Lubbock, Odessa, and the Permian Basin keep reefers running on schedule.
- OEM Fit – Ensures correct thread engagement and secure sealing for Thermo King line connections, reducing leak risk and service time.
 - 45° Elbow Profile – Facilitates compact routing in tight chassis or refrigeration head locations, improving installation flexibility and airflow management.
 - Thread Specification – 12 7/8-14TH thread pattern provides reliable mechanical coupling to matching Thermo King components and hoses.
 - Fleet Uptime Focus – Designed to support quick replacement during scheduled maintenance to restore temperature control and reduce trailer downtime.
 - Durability Expectations – Built to meet Thermo King OEM standards for transport refrigeration fittings, supporting long service intervals and predictable maintenance costs.
 
Product Details
| Part Number | 559538 | 
| Product | Fitting - 45° 12 7/8-14TH | 
| Angle | 45° elbow | 
| Thread Specification | 12 7/8-14TH | 
| Material | OEM-specified corrosion-resistant metal | 
| Application | Thermo King transport refrigeration line connections and reefer trailers | 
This fitting integrates with Thermo King Precedent-series and contemporary transport refrigeration hardware where 45° line routing and the specified 12 7/8-14TH thread are required. For exact application fitment, reference OEM parts documentation or contact West Texas Thermo King for verification.
Efficiency & Sustainability
Properly fitted connections reduce refrigerant loss and maintain consistent temperature control, supporting fuel-efficient cooling and lower lifecycle emissions. This component complies with Thermo King engineering practices and complements systems such as Smart Reefer SR-4 and Diesel Direct Electric configurations to support CARB Evergreen and fleet sustainability goals.
Installation & Maintenance Tips
Install using OEM-specified torque and sealing methods. Use Thermo King-approved clamps and thread seals where recommended, and inspect fittings during scheduled maintenance intervals. Replace any fitting that shows signs of wear, corrosion, or thread damage to preserve system integrity and temperature control.
Real-World Applications
This 45° fitting is ideal for reefer trailer refrigeration lines, refrigerated trucks, and transport refrigeration heads where compact routing and secure thread engagement are essential. Fleets deploy this fitting during routine service and targeted line routing updates to maintain temperature control across perishable loads.
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 call the service department for confirmation.
Frequently Asked Questions
Q: Is this fitting compatible with Thermo King Precedent units?
A: Yes. This fitting supports Thermo King transport refrigeration connections where a 45° elbow and 12 7/8-14TH thread match the OEM line requirements. Verify unit-specific fitment with OEM documentation or West Texas Thermo King.
Q: Can this fitting be installed during routine service intervals?
A: Yes. Installation follows standard Thermo King service procedures. Use OEM torque values and sealing practices to ensure leak-free operation and maintain uptime.
Q: How does this fitting help fleet efficiency?
A: Proper routing and secure connections prevent refrigerant loss and support consistent temperature control, improving fuel-efficient cooling and reducing unplanned downtime for refrigerated loads.
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.