Thermo King Vibration-Resistant Hex Nylock Nut 1/4-20 554118
Official OEM Thermo King parts catalog entry for the Thermo King Nut Hex Nylock 1/4-20 (554118), 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 Nylock 1/4-20 (554118) secures critical assemblies on Thermo King refrigeration systems with vibration-resistant locking action. Engineered for transport refrigeration, this OEM-style nylon-insert hex nut ensures dependable thread engagement for reefer trailer and refrigerated truck applications across West Texas fleets.
Key Features & Customer Benefits
- Nylock Nylon Insert – Resists loosening under vibration to maintain secure fastening during long-haul operation and frequent service cycles.
- 1/4-20 Thread Standard – Provides broad compatibility with common 1/4-inch fasteners used on Thermo King components for straightforward replacement and maintenance.
- Hexagon Head – Enables quick, precise torque application with standard sockets and wrenches for efficient workshop service.
- OEM Fitment – Matches Thermo King fastening requirements to preserve assembly integrity and preserve warranty eligibility when installed per OEM guidance.
- Corrosion-Resistant Design – Typical OEM construction supports long service life in road and environmental exposure common to reefer trailers and transport refrigeration units.
- Minimal Downtime – Reduces rework and loosening-related failures to support fleet uptime and return on investment for temperature-control operations.
Product Details
| Part Number | 554118 |
| Product Name | Nut Hex Nylock 1/4-20 |
| Thread Size | 1/4-20 (UNC) |
| Style | Hexagon nut with nylon locking insert (Nylock) |
| Intended Use | Transport refrigeration and Thermo King assemblies |
Efficiency & Sustainability
This OEM-style Nylock nut supports reliable, low-maintenance assemblies that reduce service frequency and parts waste across fleet operations. Proper fastening contributes to efficient temperature control and fewer unscheduled stops, supporting fuel-efficient cooling strategies on Thermo King Smart Reefer SR-4 and Diesel Direct Electric platforms. Compliance with Thermo King service standards helps fleets align with CARB Evergreen and regional emissions-focused maintenance programs.
Installation & Maintenance Tips
Install hand-started, then torque to the OEM-specified value using calibrated tools to preserve the nylon insert’s locking function. Inspect locking inserts during scheduled maintenance intervals and replace if the nylon shows wear or damage. Use OEM-grade fasteners and hardware practices to ensure consistent, long-term reliability in transport refrigeration systems.
Real-World Applications
The Thermo King Nut Hex Nylock 1/4-20 (554118) secures panels, mounting brackets, and service components on reefer trailers, refrigerated trucks, and transport refrigeration units such as Precedent-series and SR-class equipment. This nut supports operations where vibration resistance and dependable thread locking are essential for temperature control and cargo protection.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Nut Hex Nylock 1/4-20 compatible with common Thermo King units?
A: Yes. The 1/4-20 Nylock nut is compatible with many Thermo King assemblies that use 1/4-inch fasteners on reefer trailers and refrigerated trucks.
Q: How does the nylon insert improve fleet reliability?
A: The nylon insert provides frictional locking to resist loosening from vibration, reducing the need for re-torqueing and minimizing unscheduled maintenance events.
Q: What installation tools are recommended?
A: Use standard hex sockets or wrenches and a calibrated torque tool to achieve OEM-specified torque while protecting the locking insert.
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 Nylock 1/4-20 (554118), 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 Nylock 1/4-20 (554118) secures critical assemblies on Thermo King refrigeration systems with vibration-resistant locking action. Engineered for transport refrigeration, this OEM-style nylon-insert hex nut ensures dependable thread engagement for reefer trailer and refrigerated truck applications across West Texas fleets.
Key Features & Customer Benefits
- Nylock Nylon Insert – Resists loosening under vibration to maintain secure fastening during long-haul operation and frequent service cycles.
- 1/4-20 Thread Standard – Provides broad compatibility with common 1/4-inch fasteners used on Thermo King components for straightforward replacement and maintenance.
- Hexagon Head – Enables quick, precise torque application with standard sockets and wrenches for efficient workshop service.
- OEM Fitment – Matches Thermo King fastening requirements to preserve assembly integrity and preserve warranty eligibility when installed per OEM guidance.
- Corrosion-Resistant Design – Typical OEM construction supports long service life in road and environmental exposure common to reefer trailers and transport refrigeration units.
- Minimal Downtime – Reduces rework and loosening-related failures to support fleet uptime and return on investment for temperature-control operations.
Product Details
| Part Number | 554118 |
| Product Name | Nut Hex Nylock 1/4-20 |
| Thread Size | 1/4-20 (UNC) |
| Style | Hexagon nut with nylon locking insert (Nylock) |
| Intended Use | Transport refrigeration and Thermo King assemblies |
Efficiency & Sustainability
This OEM-style Nylock nut supports reliable, low-maintenance assemblies that reduce service frequency and parts waste across fleet operations. Proper fastening contributes to efficient temperature control and fewer unscheduled stops, supporting fuel-efficient cooling strategies on Thermo King Smart Reefer SR-4 and Diesel Direct Electric platforms. Compliance with Thermo King service standards helps fleets align with CARB Evergreen and regional emissions-focused maintenance programs.
Installation & Maintenance Tips
Install hand-started, then torque to the OEM-specified value using calibrated tools to preserve the nylon insert’s locking function. Inspect locking inserts during scheduled maintenance intervals and replace if the nylon shows wear or damage. Use OEM-grade fasteners and hardware practices to ensure consistent, long-term reliability in transport refrigeration systems.
Real-World Applications
The Thermo King Nut Hex Nylock 1/4-20 (554118) secures panels, mounting brackets, and service components on reefer trailers, refrigerated trucks, and transport refrigeration units such as Precedent-series and SR-class equipment. This nut supports operations where vibration resistance and dependable thread locking are essential for temperature control and cargo protection.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Nut Hex Nylock 1/4-20 compatible with common Thermo King units?
A: Yes. The 1/4-20 Nylock nut is compatible with many Thermo King assemblies that use 1/4-inch fasteners on reefer trailers and refrigerated trucks.
Q: How does the nylon insert improve fleet reliability?
A: The nylon insert provides frictional locking to resist loosening from vibration, reducing the need for re-torqueing and minimizing unscheduled maintenance events.
Q: What installation tools are recommended?
A: Use standard hex sockets or wrenches and a calibrated torque tool to achieve OEM-specified torque while protecting the locking insert.
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.