Thermo King Liquid-Line Sight Glass SGN 10S 3/8 614565
Official OEM Thermo King parts catalog entry for the Sight Glass SGN 10S 3/8, 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 Sight Glass SGN 10S 3/8 delivers OEM-grade visual monitoring for Thermo King refrigeration systems, enabling technicians and fleet managers to confirm refrigerant condition and moisture presence quickly and accurately. This component supports uptime and precise temperature control across transport refrigeration applications.
Product Overview
Thermo King refrigeration system sight glass designed for liquid-line use in reefer trailer and refrigerated truck installations. The Sight Glass SGN 10S 3/8 provides a clear viewing port and moisture indication to aid fast diagnostics and reliable operation for fleets running Smart Reefer SR-4, Precedent S-610M, S-610DE, and Diesel Direct Electric platforms.
Key Features & Customer Benefits
- OEM Part Number 614565 – Ensures a precise fit and Thermo King-approved compatibility for service and replacement.
- Clear Visual Port – Enables quick inspection of refrigerant condition to confirm liquid flow or detect bubbles that indicate charge or system issues.
- Built-in Moisture Indication – Provides a visible color change to help identify elevated moisture levels and protect compressor reliability.
- 3/8-inch Connection – Standard liquid-line connection for common refrigeration line sizes, supporting efficient installation and service.
- Durable Construction – Engineered for transport refrigeration duty cycles to maintain long service life under vibration and temperature variation.
- Fleet Uptime Focus – Speeds troubleshooting and routine checks, reducing downtime and preserving cargo temperature control.
Product Details
| Part Number | 614565 |
| Product Name | Sight Glass SGN 10S 3/8 |
| Connection | 3/8-inch liquid-line |
| Function | Visual refrigerant inspection and moisture indication |
| Compatibility | Thermo King refrigeration units, reefer trailers, and refrigerated trucks |
| Manufacturer | Thermo King (OEM part) |
Efficiency & Sustainability
The Sight Glass SGN 10S 3/8 supports precise refrigerant management and leak-detection workflows that preserve fuel-efficient cooling and reduce unnecessary service events. Proper refrigerant monitoring contributes to consistent temperature control across transport refrigeration fleets and helps maintain compliance with regional emissions and refrigerant handling expectations, including CARB Evergreen initiatives when applicable.
Installation & Maintenance Tips
Install the sight glass in the liquid line using approved fittings and follow OEM torque and brazing recommendations. Inspect the viewing port during scheduled maintenance intervals and whenever a temperature or charge discrepancy appears. Use OEM clamps and replacement parts for reliable sealing and service life.
Real-World Applications
The Thermo King Sight Glass SGN 10S 3/8 is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units operating in hot, variable environments — from local delivery fleets to long-haul service in the Permian Basin. Technicians use this sight glass during charging, evacuation, and routine inspections to confirm refrigerant state and moisture condition, protecting perishables and optimizing system efficiency.
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 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, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is the Sight Glass SGN 10S 3/8 compatible with Thermo King Precedent units?
A: Yes. The Sight Glass SGN 10S 3/8 fits liquid-line applications common to Precedent-series and other Thermo King refrigeration units when installed per OEM procedures.
Q: How does the moisture indication help fleet maintenance?
A: The moisture indicator shows color change when moisture is present in the refrigerant, enabling prompt service actions that protect compressors and ensure reliable temperature control.
Q: Can a technician perform replacement in the field?
A: Yes. Certified technicians perform sight glass replacement during scheduled service or repairs using proper brazing and leak-test procedures to maintain system integrity.
Q: Which Thermo King platforms commonly use this component?
A: The sight glass supports a wide range of Thermo King transport refrigeration systems including Smart Reefer SR-4, S-610M, S-610DE, and Diesel Direct Electric applications when installed in appropriate liquid-line locations.
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 Sight Glass SGN 10S 3/8, 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 Sight Glass SGN 10S 3/8 delivers OEM-grade visual monitoring for Thermo King refrigeration systems, enabling technicians and fleet managers to confirm refrigerant condition and moisture presence quickly and accurately. This component supports uptime and precise temperature control across transport refrigeration applications.
Product Overview
Thermo King refrigeration system sight glass designed for liquid-line use in reefer trailer and refrigerated truck installations. The Sight Glass SGN 10S 3/8 provides a clear viewing port and moisture indication to aid fast diagnostics and reliable operation for fleets running Smart Reefer SR-4, Precedent S-610M, S-610DE, and Diesel Direct Electric platforms.
Key Features & Customer Benefits
- OEM Part Number 614565 – Ensures a precise fit and Thermo King-approved compatibility for service and replacement.
- Clear Visual Port – Enables quick inspection of refrigerant condition to confirm liquid flow or detect bubbles that indicate charge or system issues.
- Built-in Moisture Indication – Provides a visible color change to help identify elevated moisture levels and protect compressor reliability.
- 3/8-inch Connection – Standard liquid-line connection for common refrigeration line sizes, supporting efficient installation and service.
- Durable Construction – Engineered for transport refrigeration duty cycles to maintain long service life under vibration and temperature variation.
- Fleet Uptime Focus – Speeds troubleshooting and routine checks, reducing downtime and preserving cargo temperature control.
Product Details
| Part Number | 614565 |
| Product Name | Sight Glass SGN 10S 3/8 |
| Connection | 3/8-inch liquid-line |
| Function | Visual refrigerant inspection and moisture indication |
| Compatibility | Thermo King refrigeration units, reefer trailers, and refrigerated trucks |
| Manufacturer | Thermo King (OEM part) |
Efficiency & Sustainability
The Sight Glass SGN 10S 3/8 supports precise refrigerant management and leak-detection workflows that preserve fuel-efficient cooling and reduce unnecessary service events. Proper refrigerant monitoring contributes to consistent temperature control across transport refrigeration fleets and helps maintain compliance with regional emissions and refrigerant handling expectations, including CARB Evergreen initiatives when applicable.
Installation & Maintenance Tips
Install the sight glass in the liquid line using approved fittings and follow OEM torque and brazing recommendations. Inspect the viewing port during scheduled maintenance intervals and whenever a temperature or charge discrepancy appears. Use OEM clamps and replacement parts for reliable sealing and service life.
Real-World Applications
The Thermo King Sight Glass SGN 10S 3/8 is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units operating in hot, variable environments — from local delivery fleets to long-haul service in the Permian Basin. Technicians use this sight glass during charging, evacuation, and routine inspections to confirm refrigerant state and moisture condition, protecting perishables and optimizing system efficiency.
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 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, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is the Sight Glass SGN 10S 3/8 compatible with Thermo King Precedent units?
A: Yes. The Sight Glass SGN 10S 3/8 fits liquid-line applications common to Precedent-series and other Thermo King refrigeration units when installed per OEM procedures.
Q: How does the moisture indication help fleet maintenance?
A: The moisture indicator shows color change when moisture is present in the refrigerant, enabling prompt service actions that protect compressors and ensure reliable temperature control.
Q: Can a technician perform replacement in the field?
A: Yes. Certified technicians perform sight glass replacement during scheduled service or repairs using proper brazing and leak-test procedures to maintain system integrity.
Q: Which Thermo King platforms commonly use this component?
A: The sight glass supports a wide range of Thermo King transport refrigeration systems including Smart Reefer SR-4, S-610M, S-610DE, and Diesel Direct Electric applications when installed in appropriate liquid-line locations.
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.