Thermo King 1/4-In Fluid Fitting 7/16-20 Thread 557097
Official OEM Thermo King parts catalog entry for the Fitting 1/4 FLD 7/16-20 T (557097), 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 Fitting 1/4 FLD 7/16-20 T (557097) delivers OEM-grade connection reliability for temperature-controlled fleets. This precision fitting supports secure fluid line joins and consistent sealing to maintain uptime across transport refrigeration applications.
Key Features & Customer Benefits
- Exact Connection Size – Fits 1/4" fluid lines to ensure correct mating with Thermo King hose assemblies and tubing.
- Standard 7/16-20 Thread – Uses a common fine thread form for secure, repeatable torque and leak-resistant service.
- OEM Compatibility – Designed for straightforward integration with Thermo King units and accessory plumbing to minimize retrofit time.
- Leak-Minimizing Design – Promotes reliable sealing when installed with OEM O-rings and correct torque, reducing downtime and service calls.
- Fleet-Ready Durability – Supports consistent operation in reefer trailers, refrigerated trucks, and transport refrigeration systems operating across West Texas conditions.
Product Details
| Part Number | 557097 |
| Description | Fitting 1/4 FLD 7/16-20 T |
| Connection Size | 1/4" fluid line |
| Thread | 7/16-20 |
| Primary Use | Fluid line connection on Thermo King refrigeration and fuel systems |
Efficiency & Sustainability
This Thermo King OEM fitting supports efficient fluid routing that preserves system integrity and fuel-efficient cooling. When specified and installed per Thermo King guidelines, components such as this fitting contribute to precise temperature control on Smart Reefer SR-4 and Precedent-class units, helping fleets meet CARB Evergreen and regional emissions expectations by maintaining optimal refrigeration efficiency.
Installation & Maintenance Tips
Install with OEM-approved O-rings and lubricant compatible with the system fluid. Tighten to manufacturer torque specifications to avoid over-compression or leaks. Inspect fittings during scheduled maintenance intervals and replace if threads or sealing surfaces show wear. Use OEM clamps and hose assemblies to maintain warranty and service life.
Real-World Applications
This fitting serves reefer trailers, refrigerated trucks, and transport refrigeration packages where a 1/4" fluid line requires a 7/16-20 threaded connection. Common service uses include refrigerant and fuel line joins on Thermo King Diesel Direct Electric and Precedent S-610DE systems in fleet operations across the Southwest.
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, please contact us for warranty information or reach out to the service department for confirmation.
Frequently Asked Questions
Q: Is this fitting compatible with Thermo King Precedent units?
A: Yes. The 1/4" FLD size and 7/16-20 thread are specified for secure connections used on Precedent-series and similar Thermo King refrigeration components when matched with the correct hose assembly.
Q: What maintenance keeps this fitting performing reliably?
A: Inspect thread engagement and O-ring condition during scheduled service, use OEM lubrication during assembly, and tighten to Thermo King torque values to maintain a leak-free seal.
Q: Where do fleets in West Texas most commonly use this part?
A: Fleets use this fitting in reefer trailers and refrigerated trucks operating in Amarillo, Lubbock, Odessa, and the Permian Basin for temperature-critical transport and depot repairs.
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 Fitting 1/4 FLD 7/16-20 T (557097), 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 Fitting 1/4 FLD 7/16-20 T (557097) delivers OEM-grade connection reliability for temperature-controlled fleets. This precision fitting supports secure fluid line joins and consistent sealing to maintain uptime across transport refrigeration applications.
Key Features & Customer Benefits
- Exact Connection Size – Fits 1/4" fluid lines to ensure correct mating with Thermo King hose assemblies and tubing.
- Standard 7/16-20 Thread – Uses a common fine thread form for secure, repeatable torque and leak-resistant service.
- OEM Compatibility – Designed for straightforward integration with Thermo King units and accessory plumbing to minimize retrofit time.
- Leak-Minimizing Design – Promotes reliable sealing when installed with OEM O-rings and correct torque, reducing downtime and service calls.
- Fleet-Ready Durability – Supports consistent operation in reefer trailers, refrigerated trucks, and transport refrigeration systems operating across West Texas conditions.
Product Details
| Part Number | 557097 |
| Description | Fitting 1/4 FLD 7/16-20 T |
| Connection Size | 1/4" fluid line |
| Thread | 7/16-20 |
| Primary Use | Fluid line connection on Thermo King refrigeration and fuel systems |
Efficiency & Sustainability
This Thermo King OEM fitting supports efficient fluid routing that preserves system integrity and fuel-efficient cooling. When specified and installed per Thermo King guidelines, components such as this fitting contribute to precise temperature control on Smart Reefer SR-4 and Precedent-class units, helping fleets meet CARB Evergreen and regional emissions expectations by maintaining optimal refrigeration efficiency.
Installation & Maintenance Tips
Install with OEM-approved O-rings and lubricant compatible with the system fluid. Tighten to manufacturer torque specifications to avoid over-compression or leaks. Inspect fittings during scheduled maintenance intervals and replace if threads or sealing surfaces show wear. Use OEM clamps and hose assemblies to maintain warranty and service life.
Real-World Applications
This fitting serves reefer trailers, refrigerated trucks, and transport refrigeration packages where a 1/4" fluid line requires a 7/16-20 threaded connection. Common service uses include refrigerant and fuel line joins on Thermo King Diesel Direct Electric and Precedent S-610DE systems in fleet operations across the Southwest.
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, please contact us for warranty information or reach out to the service department for confirmation.
Frequently Asked Questions
Q: Is this fitting compatible with Thermo King Precedent units?
A: Yes. The 1/4" FLD size and 7/16-20 thread are specified for secure connections used on Precedent-series and similar Thermo King refrigeration components when matched with the correct hose assembly.
Q: What maintenance keeps this fitting performing reliably?
A: Inspect thread engagement and O-ring condition during scheduled service, use OEM lubrication during assembly, and tighten to Thermo King torque values to maintain a leak-free seal.
Q: Where do fleets in West Texas most commonly use this part?
A: Fleets use this fitting in reefer trailers and refrigerated trucks operating in Amarillo, Lubbock, Odessa, and the Permian Basin for temperature-critical transport and depot repairs.
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.
