Thermo King OEM Hex Nut 1/4-28 UNF Thread Fastener 551533
Official OEM Thermo King parts catalog entry for the Thermo King Nut Hex 1/4-28, 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 Nut Hex 1/4-28 delivers OEM-grade fastening reliability across Thermo King refrigeration system assemblies, supporting consistent temperature control and uptime for transport refrigeration and reefer trailer fleets.
Product Overview
The Thermo King Nut Hex 1/4-28, part number 551533, serves as a precision fastening component for Thermo King transport refrigeration hardware. This hex nut features a 1/4-28 UNF thread specification, ensuring accurate engagement with matching threaded components used in temperature control subsystems on reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Thread Specification (1/4-28 UNF) – Ensures consistent, secure fastening with Thermo King-approved threaded components for leak-free assemblies and dependable service life.
- Hex Head Profile – Provides straightforward installation and removal using common hand tools, reducing downtime during field service and fleet maintenance.
- Durable Construction – Manufactured to meet commercial refrigeration demands, supporting long-term reliability in harsh operating environments across West Texas and the Permian Basin.
- Precision Fit – Minimizes play and vibration at critical connection points, preserving calibration and performance of Thermo King refrigeration units like Precedent S-610M and Diesel Direct Electric systems.
- Serviceability – Simplifies inventory and parts management for certified dealerships and fleet shops, improving parts availability and repair turnaround.
Product Details
The Thermo King Nut Hex 1/4-28 (551533) is identified by its 1/4-28 UNF thread pitch and hexagonal drive form. As an OEM Thermo King fastener, it supports secure attachment of components within Thermo King refrigeration assemblies used on reefer trailers and transport refrigeration equipment. Specific material and finish specifications follow Thermo King OEM standards and are available through West Texas Thermo King for confirmed compatibility and service planning.
Efficiency & Sustainability
Reliable fasteners contribute to sealing integrity and system efficiency across transport refrigeration applications. The Thermo King Nut Hex 1/4-28 supports fuel-efficient cooling strategies by maintaining mechanical stability in assemblies servicing Smart Reefer SR-4, CARB Evergreen-compliant systems, and Diesel Direct Electric units, helping fleets preserve temperature control and reduce waste due to cargo temperature excursions.
Installation & Maintenance Tips
Install using the correct mating 1/4-28 threaded component and follow OEM torque specifications for secure fitment. Inspect fasteners during scheduled maintenance intervals and replace if signs of corrosion, galling, or thread damage appear. Use Thermo King–approved hardware and retain manufacturer documentation for service records.
Real-World Applications
The Thermo King Nut Hex 1/4-28 fits fastening points in refrigeration evaporator assemblies, compressor mounts, panel attachments, and other mechanical connections on reefer trailers and refrigerated trucks. Fleet operators and service centers rely on this fastener to preserve system integrity and temperature stability during long-haul and regional runs.
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.
Check Parts Warranty
For current warranty eligibility or OEM replacement coverage, contact us for warranty information: contact.
Frequently Asked Questions
Q: Is the Thermo King Nut Hex 1/4-28 compatible with Thermo King Precedent units?
A: Yes. The 1/4-28 thread specification matches Thermo King OEM threaded hardware used across Precedent-series assemblies and other Thermo King refrigeration systems when specified by OEM documentation.
Q: What tools are recommended for installation?
A: Standard hex wrenches or sockets sized for the nut head provide secure engagement; installers follow Thermo King torque values and use approved fasteners for service reliability.
Q: Can this fastener support long-haul refrigerated transport in extreme West Texas conditions?
A: Yes. As an OEM Thermo King component, this hex nut supports reliable mechanical retention under heavy-duty transport refrigeration usage across Amarillo, Lubbock, Odessa, and the Permian Basin.
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 Thermo King Nut Hex 1/4-28, 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 Nut Hex 1/4-28 delivers OEM-grade fastening reliability across Thermo King refrigeration system assemblies, supporting consistent temperature control and uptime for transport refrigeration and reefer trailer fleets.
Product Overview
The Thermo King Nut Hex 1/4-28, part number 551533, serves as a precision fastening component for Thermo King transport refrigeration hardware. This hex nut features a 1/4-28 UNF thread specification, ensuring accurate engagement with matching threaded components used in temperature control subsystems on reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Thread Specification (1/4-28 UNF) – Ensures consistent, secure fastening with Thermo King-approved threaded components for leak-free assemblies and dependable service life.
- Hex Head Profile – Provides straightforward installation and removal using common hand tools, reducing downtime during field service and fleet maintenance.
- Durable Construction – Manufactured to meet commercial refrigeration demands, supporting long-term reliability in harsh operating environments across West Texas and the Permian Basin.
- Precision Fit – Minimizes play and vibration at critical connection points, preserving calibration and performance of Thermo King refrigeration units like Precedent S-610M and Diesel Direct Electric systems.
- Serviceability – Simplifies inventory and parts management for certified dealerships and fleet shops, improving parts availability and repair turnaround.
Product Details
The Thermo King Nut Hex 1/4-28 (551533) is identified by its 1/4-28 UNF thread pitch and hexagonal drive form. As an OEM Thermo King fastener, it supports secure attachment of components within Thermo King refrigeration assemblies used on reefer trailers and transport refrigeration equipment. Specific material and finish specifications follow Thermo King OEM standards and are available through West Texas Thermo King for confirmed compatibility and service planning.
Efficiency & Sustainability
Reliable fasteners contribute to sealing integrity and system efficiency across transport refrigeration applications. The Thermo King Nut Hex 1/4-28 supports fuel-efficient cooling strategies by maintaining mechanical stability in assemblies servicing Smart Reefer SR-4, CARB Evergreen-compliant systems, and Diesel Direct Electric units, helping fleets preserve temperature control and reduce waste due to cargo temperature excursions.
Installation & Maintenance Tips
Install using the correct mating 1/4-28 threaded component and follow OEM torque specifications for secure fitment. Inspect fasteners during scheduled maintenance intervals and replace if signs of corrosion, galling, or thread damage appear. Use Thermo King–approved hardware and retain manufacturer documentation for service records.
Real-World Applications
The Thermo King Nut Hex 1/4-28 fits fastening points in refrigeration evaporator assemblies, compressor mounts, panel attachments, and other mechanical connections on reefer trailers and refrigerated trucks. Fleet operators and service centers rely on this fastener to preserve system integrity and temperature stability during long-haul and regional runs.
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.
Check Parts Warranty
For current warranty eligibility or OEM replacement coverage, contact us for warranty information: contact.
Frequently Asked Questions
Q: Is the Thermo King Nut Hex 1/4-28 compatible with Thermo King Precedent units?
A: Yes. The 1/4-28 thread specification matches Thermo King OEM threaded hardware used across Precedent-series assemblies and other Thermo King refrigeration systems when specified by OEM documentation.
Q: What tools are recommended for installation?
A: Standard hex wrenches or sockets sized for the nut head provide secure engagement; installers follow Thermo King torque values and use approved fasteners for service reliability.
Q: Can this fastener support long-haul refrigerated transport in extreme West Texas conditions?
A: Yes. As an OEM Thermo King component, this hex nut supports reliable mechanical retention under heavy-duty transport refrigeration usage across Amarillo, Lubbock, Odessa, and the Permian Basin.
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.