Thermo King OEM 5/16-Inch Spring-Lock Washer 552959
Official OEM Thermo King parts catalog entry for the Thermo King Washer 552959, 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 552959 delivers OEM-grade fastening security for transport refrigeration systems, supporting leak-free assemblies and reliable connections across reefer trailers and refrigerated trucks. Engineered for consistent fit and dependable service life, this washer supports uptime-critical fleets operating in West Texas and the Permian Basin.
Key Features & Customer Benefits
- OEM Spring-Lock Design – Provides secure retention for 5/16 in fasteners, minimizing loosening under vibration and thermal cycling.
- Thermo King Compatibility – Designed to interface with Thermo King assemblies and mounting hardware for precise fit and reduced rework.
- Durable Construction – Built to withstand typical transport refrigeration environments, supporting long service intervals and reduced replacement frequency.
- Maintains Seal Integrity – Helps preserve gasket and connector compressions to protect refrigerant and coolant pathways from leaks.
- Fleet-Ready – Supports efficient maintenance workflows for fleets serving Amarillo, Lubbock, Odessa, and surrounding regions.
Product Details
| Part Number | 552959 |
| Product | Washer (Spring-Lock Style) |
| Size | 5/16 in application |
| Manufacturer | Thermo King (OEM) |
| Primary Application | Transport refrigeration assemblies, mounting hardware |
Efficiency & Sustainability
This Thermo King washer supports system efficiency by maintaining secure hardware connections that preserve refrigerant and coolant circuit integrity. Reliable fastener retention reduces the risk of service-related leaks and unplanned downtime, contributing to fuel-efficient cooling and lower operational emissions across Thermo King platforms, including Smart Reefer SR-4 and CARB Evergreen-compliant operations where applicable.
Installation & Maintenance Tips
Use OEM-specified fasteners and clamps for secure fitment. Inspect washers during routine maintenance intervals and replace if deformation or corrosion appears. Tighten to manufacturer torque specifications to maintain compression without stressing mounting components.
Real-World Applications
The Thermo King Washer 552959 is suitable for reefer trailers, refrigerated straight trucks, and transport refrigeration mounting points where a 5/16 in spring-lock washer delivers vibration resistance and retention. Technicians install this washer on brackets, compressor mounts, condenser assemblies, and accessory hardware to maintain system integrity in demanding transport cycles. 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 compatible with common Thermo King compressor and bracket mounts?
A: Yes. The Thermo King Washer 552959 is an OEM-style spring-lock washer designed to fit 5/16 in fastener applications commonly used on Thermo King mounting hardware.
Q: Can this washer reduce maintenance frequency for vibration-prone units?
A: Yes. The spring-lock feature helps resist loosening under vibration and thermal cycling, contributing to longer intervals between fastener rechecks when installed to OEM torque specifications.
Q: Where can fleets in West Texas obtain supply and installation?
A: West Texas Thermo King provides parts supply and certified installation across Amarillo, Lubbock, Odessa, and surrounding areas. Contact the parts or service team for availability and lead times.
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 Washer 552959, 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 552959 delivers OEM-grade fastening security for transport refrigeration systems, supporting leak-free assemblies and reliable connections across reefer trailers and refrigerated trucks. Engineered for consistent fit and dependable service life, this washer supports uptime-critical fleets operating in West Texas and the Permian Basin.
Key Features & Customer Benefits
- OEM Spring-Lock Design – Provides secure retention for 5/16 in fasteners, minimizing loosening under vibration and thermal cycling.
- Thermo King Compatibility – Designed to interface with Thermo King assemblies and mounting hardware for precise fit and reduced rework.
- Durable Construction – Built to withstand typical transport refrigeration environments, supporting long service intervals and reduced replacement frequency.
- Maintains Seal Integrity – Helps preserve gasket and connector compressions to protect refrigerant and coolant pathways from leaks.
- Fleet-Ready – Supports efficient maintenance workflows for fleets serving Amarillo, Lubbock, Odessa, and surrounding regions.
Product Details
| Part Number | 552959 |
| Product | Washer (Spring-Lock Style) |
| Size | 5/16 in application |
| Manufacturer | Thermo King (OEM) |
| Primary Application | Transport refrigeration assemblies, mounting hardware |
Efficiency & Sustainability
This Thermo King washer supports system efficiency by maintaining secure hardware connections that preserve refrigerant and coolant circuit integrity. Reliable fastener retention reduces the risk of service-related leaks and unplanned downtime, contributing to fuel-efficient cooling and lower operational emissions across Thermo King platforms, including Smart Reefer SR-4 and CARB Evergreen-compliant operations where applicable.
Installation & Maintenance Tips
Use OEM-specified fasteners and clamps for secure fitment. Inspect washers during routine maintenance intervals and replace if deformation or corrosion appears. Tighten to manufacturer torque specifications to maintain compression without stressing mounting components.
Real-World Applications
The Thermo King Washer 552959 is suitable for reefer trailers, refrigerated straight trucks, and transport refrigeration mounting points where a 5/16 in spring-lock washer delivers vibration resistance and retention. Technicians install this washer on brackets, compressor mounts, condenser assemblies, and accessory hardware to maintain system integrity in demanding transport cycles. 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 compatible with common Thermo King compressor and bracket mounts?
A: Yes. The Thermo King Washer 552959 is an OEM-style spring-lock washer designed to fit 5/16 in fastener applications commonly used on Thermo King mounting hardware.
Q: Can this washer reduce maintenance frequency for vibration-prone units?
A: Yes. The spring-lock feature helps resist loosening under vibration and thermal cycling, contributing to longer intervals between fastener rechecks when installed to OEM torque specifications.
Q: Where can fleets in West Texas obtain supply and installation?
A: West Texas Thermo King provides parts supply and certified installation across Amarillo, Lubbock, Odessa, and surrounding areas. Contact the parts or service team for availability and lead times.
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.
