Thermo King Washer-Belleville 1/2 Stainless Steel 557123
Official OEM Thermo King parts catalog entry for the Thermo King Washer-Belleville 557123 1/2 Stainless Steel, 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-Belleville 557123 1/2 Stainless Steel supports Thermo King refrigeration systems with reliable clamp preload and vibration resistance, preserving temperature integrity across transport refrigeration operations.
Thermo King refrigeration system compatibility and OEM identification deliver confidence for fleets prioritizing uptime and cost-effective maintenance in West Texas and the Permian Basin.
- OEM Part Number 557123 – Ensures correct identification for Thermo King service and parts ordering, reducing downtime from incorrect replacements.
- Stainless Steel Construction – Resists corrosion in wet and saline environments common to long-haul reefer operations, extending service life and reliability.
- Belleville (Disc Spring) Design – Maintains consistent axial force under thermal cycling to protect bolted joints and seals on refrigeration components.
- Vibration Control – Helps prevent fastener loosening on evaporators, compressors, and mounting brackets in heavy-duty transport refrigeration use.
- Fleet-Friendly Serviceability – Compact form and predictable spring characteristics support efficient scheduled maintenance and parts swaps on-site.
Product Details
The Thermo King Washer-Belleville 557123 1/2 Stainless Steel is listed under Thermo King OEM identification and specifies stainless steel material and Belleville (conical disc spring) function. This component functions as a load-maintaining washer that supports secure bolted assemblies in Thermo King transport refrigeration equipment. Exact dimensional data is based on Thermo King part coding; service technicians reference part number 557123 for precise fitment during maintenance on compatible Thermo King units.
Efficiency & Sustainability
Using genuine Thermo King parts like Washer-Belleville 557123 supports efficient, long-term operation of temperature control systems in reefers and refrigerated trucks. Properly maintained fastener assemblies reduce leaks, energy waste, and unscheduled stops—contributing to fuel-efficient cooling and responsible fleet emissions profiles. This part integrates into maintenance programs for units such as Smart Reefer SR-4 and other Thermo King platforms, helping maintain compliance and operational readiness.
Installation & Maintenance Tips
Install the washer per Thermo King service instructions and use OEM-grade fasteners and clamps for secure fitment. Inspect Belleville washers during routine maintenance intervals for loss of preload, corrosion, or deformation. Replace as part of scheduled component servicing to preserve joint integrity and temperature control performance.
Real-World Applications
This Belleville washer serves transport refrigeration roles across reefer trailers, refrigerated straight trucks, and multi-temperature units where vibration and thermal cycling threaten bolted connections. Technicians use it on evaporator housings, compressor mounts, and bracket assemblies within Precedent, S-610M, S-610DE and similar Thermo King platforms where OEM-specified fastener components are required.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King 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, contact us for warranty information and visit https://www.trailerservicesofwesttexas.com/contact to reach the service team for confirmation.
Frequently Asked Questions
Q: Is this washer compatible with Thermo King Precedent and S-series units?
A: Yes. The Thermo King Washer-Belleville 557123 1/2 Stainless Steel is listed under Thermo King part identification for use where Belleville washers are specified in Precedent and compatible S-series maintenance procedures.
Q: How does a Belleville washer improve fleet reliability?
A: Belleville washers maintain axial preload during thermal expansion and vibration, reducing fastener loosening and preserving seal integrity for consistent temperature control.
Q: Can this part be installed during routine service stops?
A: Yes. Its compact design and single-component replacement profile make it suitable for scheduled maintenance and roadside service when technicians follow OEM fitment guidelines.
Q: Where is this part stocked and serviced?
A: West Texas Thermo King stocks and supports Thermo King parts for fleets across Amarillo, Lubbock, Odessa, and the Permian Basin, with trained technicians available for installation and verification.
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 Washer-Belleville 557123 1/2 Stainless Steel, 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-Belleville 557123 1/2 Stainless Steel supports Thermo King refrigeration systems with reliable clamp preload and vibration resistance, preserving temperature integrity across transport refrigeration operations.
Thermo King refrigeration system compatibility and OEM identification deliver confidence for fleets prioritizing uptime and cost-effective maintenance in West Texas and the Permian Basin.
- OEM Part Number 557123 – Ensures correct identification for Thermo King service and parts ordering, reducing downtime from incorrect replacements.
- Stainless Steel Construction – Resists corrosion in wet and saline environments common to long-haul reefer operations, extending service life and reliability.
- Belleville (Disc Spring) Design – Maintains consistent axial force under thermal cycling to protect bolted joints and seals on refrigeration components.
- Vibration Control – Helps prevent fastener loosening on evaporators, compressors, and mounting brackets in heavy-duty transport refrigeration use.
- Fleet-Friendly Serviceability – Compact form and predictable spring characteristics support efficient scheduled maintenance and parts swaps on-site.
Product Details
The Thermo King Washer-Belleville 557123 1/2 Stainless Steel is listed under Thermo King OEM identification and specifies stainless steel material and Belleville (conical disc spring) function. This component functions as a load-maintaining washer that supports secure bolted assemblies in Thermo King transport refrigeration equipment. Exact dimensional data is based on Thermo King part coding; service technicians reference part number 557123 for precise fitment during maintenance on compatible Thermo King units.
Efficiency & Sustainability
Using genuine Thermo King parts like Washer-Belleville 557123 supports efficient, long-term operation of temperature control systems in reefers and refrigerated trucks. Properly maintained fastener assemblies reduce leaks, energy waste, and unscheduled stops—contributing to fuel-efficient cooling and responsible fleet emissions profiles. This part integrates into maintenance programs for units such as Smart Reefer SR-4 and other Thermo King platforms, helping maintain compliance and operational readiness.
Installation & Maintenance Tips
Install the washer per Thermo King service instructions and use OEM-grade fasteners and clamps for secure fitment. Inspect Belleville washers during routine maintenance intervals for loss of preload, corrosion, or deformation. Replace as part of scheduled component servicing to preserve joint integrity and temperature control performance.
Real-World Applications
This Belleville washer serves transport refrigeration roles across reefer trailers, refrigerated straight trucks, and multi-temperature units where vibration and thermal cycling threaten bolted connections. Technicians use it on evaporator housings, compressor mounts, and bracket assemblies within Precedent, S-610M, S-610DE and similar Thermo King platforms where OEM-specified fastener components are required.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King 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, contact us for warranty information and visit https://www.trailerservicesofwesttexas.com/contact to reach the service team for confirmation.
Frequently Asked Questions
Q: Is this washer compatible with Thermo King Precedent and S-series units?
A: Yes. The Thermo King Washer-Belleville 557123 1/2 Stainless Steel is listed under Thermo King part identification for use where Belleville washers are specified in Precedent and compatible S-series maintenance procedures.
Q: How does a Belleville washer improve fleet reliability?
A: Belleville washers maintain axial preload during thermal expansion and vibration, reducing fastener loosening and preserving seal integrity for consistent temperature control.
Q: Can this part be installed during routine service stops?
A: Yes. Its compact design and single-component replacement profile make it suitable for scheduled maintenance and roadside service when technicians follow OEM fitment guidelines.
Q: Where is this part stocked and serviced?
A: West Texas Thermo King stocks and supports Thermo King parts for fleets across Amarillo, Lubbock, Odessa, and the Permian Basin, with trained technicians available for installation and verification.
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.