Thermo King Stainless Steel Dome Locking Washer 553045
Official OEM Thermo King parts catalog entry for the Washer Lock Dome SS 553045, 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 Washer Lock Dome SS (part 553045) provides OEM-grade fastener retention for Thermo King refrigeration systems. This stainless steel dome-style locking washer secures assemblies against vibration and thermal cycling to preserve temperature control on reefer trailers and transport refrigeration equipment.
Product Overview
Thermo King refrigeration system components demand durable fasteners that maintain integrity under constant vibration and environmental exposure. The Washer Lock Dome SS 553045 performs as a corrosion-resistant locking washer engineered to hold critical connections tight, supporting continuous, fuel-efficient cooling and consistent temperature control for fleet operations.
Key Features & Customer Benefits
- Stainless Steel Construction – Resists corrosion in wet and salty environments to extend service life and reduce replacement frequency.
 - Dome Lock Design – Provides positive locking action to minimize fastener loosening under vibration common to refrigerated transport.
 - OEM Thermo King Specification – Matches Thermo King quality standards for fit and reliability in refrigeration assemblies.
 - Vibration Resistance – Helps maintain torque and clamp load, supporting consistent temperature control and load protection.
 - Durability for Fleet Use – Lowers downtime risk by keeping critical connections secure across long-haul and regional routes.
 
Product Details
| Part Number | 553045 | 
| Product Name | Washer Lock Dome SS | 
| Material | Stainless steel | 
| Function | Dome-style locking washer for fastener retention | 
| Application | Thermo King refrigeration components and reefer assemblies | 
Efficiency & Sustainability
This genuine Thermo King component supports reliable system operation and reduces the likelihood of premature replacements or emergency repairs. Sustained fastener integrity contributes to efficient cooling cycles and stable setpoints, which align with fuel-efficient cooling strategies and fleet sustainability goals. Integration with Thermo King monitoring and maintenance protocols—such as Smart Reefer SR-4 enabled programs—helps preserve uptime and reduce environmental impact.
Installation & Maintenance Tips
Install using OEM- specified fasteners and recommended torque values from Thermo King service literature. Inspect locking washers at scheduled maintenance intervals and during vibration-prone service events. Replace any washer that shows deformation, corrosion, or loss of locking function. Use OEM clamps and hardware for best long-term reliability.
Real-World Applications
The Washer Lock Dome SS 553045 secures assemblies in reefer trailers, refrigerated trucks, and transport refrigeration installations where vibration and thermal cycling challenge fastener retention. It supports reliable operation during route cycles across Amarillo, Lubbock, Odessa, and the broader Permian Basin.
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 contact the service department for confirmation.
Frequently Asked Questions
Q: Is this Washer Lock Dome SS compatible with Thermo King refrigeration components?
A: Yes. The Washer Lock Dome SS 553045 is a Thermo King OEM locking washer intended for use in Thermo King refrigeration assemblies and reefer hardware applications.
Q: How does this washer improve fleet reliability?
A: The dome lock design and stainless steel material maintain clamp load under vibration and corrosion exposure, reducing the chance of loose fasteners that cause leaks or component failure.
Q: What maintenance actions are recommended?
A: Inspect during routine service intervals, replace if the washer shows deformation or corrosion, and use OEM hardware and torque specifications for best results.
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 Washer Lock Dome SS 553045, 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 Washer Lock Dome SS (part 553045) provides OEM-grade fastener retention for Thermo King refrigeration systems. This stainless steel dome-style locking washer secures assemblies against vibration and thermal cycling to preserve temperature control on reefer trailers and transport refrigeration equipment.
Product Overview
Thermo King refrigeration system components demand durable fasteners that maintain integrity under constant vibration and environmental exposure. The Washer Lock Dome SS 553045 performs as a corrosion-resistant locking washer engineered to hold critical connections tight, supporting continuous, fuel-efficient cooling and consistent temperature control for fleet operations.
Key Features & Customer Benefits
- Stainless Steel Construction – Resists corrosion in wet and salty environments to extend service life and reduce replacement frequency.
 - Dome Lock Design – Provides positive locking action to minimize fastener loosening under vibration common to refrigerated transport.
 - OEM Thermo King Specification – Matches Thermo King quality standards for fit and reliability in refrigeration assemblies.
 - Vibration Resistance – Helps maintain torque and clamp load, supporting consistent temperature control and load protection.
 - Durability for Fleet Use – Lowers downtime risk by keeping critical connections secure across long-haul and regional routes.
 
Product Details
| Part Number | 553045 | 
| Product Name | Washer Lock Dome SS | 
| Material | Stainless steel | 
| Function | Dome-style locking washer for fastener retention | 
| Application | Thermo King refrigeration components and reefer assemblies | 
Efficiency & Sustainability
This genuine Thermo King component supports reliable system operation and reduces the likelihood of premature replacements or emergency repairs. Sustained fastener integrity contributes to efficient cooling cycles and stable setpoints, which align with fuel-efficient cooling strategies and fleet sustainability goals. Integration with Thermo King monitoring and maintenance protocols—such as Smart Reefer SR-4 enabled programs—helps preserve uptime and reduce environmental impact.
Installation & Maintenance Tips
Install using OEM- specified fasteners and recommended torque values from Thermo King service literature. Inspect locking washers at scheduled maintenance intervals and during vibration-prone service events. Replace any washer that shows deformation, corrosion, or loss of locking function. Use OEM clamps and hardware for best long-term reliability.
Real-World Applications
The Washer Lock Dome SS 553045 secures assemblies in reefer trailers, refrigerated trucks, and transport refrigeration installations where vibration and thermal cycling challenge fastener retention. It supports reliable operation during route cycles across Amarillo, Lubbock, Odessa, and the broader Permian Basin.
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 contact the service department for confirmation.
Frequently Asked Questions
Q: Is this Washer Lock Dome SS compatible with Thermo King refrigeration components?
A: Yes. The Washer Lock Dome SS 553045 is a Thermo King OEM locking washer intended for use in Thermo King refrigeration assemblies and reefer hardware applications.
Q: How does this washer improve fleet reliability?
A: The dome lock design and stainless steel material maintain clamp load under vibration and corrosion exposure, reducing the chance of loose fasteners that cause leaks or component failure.
Q: What maintenance actions are recommended?
A: Inspect during routine service intervals, replace if the washer shows deformation or corrosion, and use OEM hardware and torque specifications for best results.
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.