Thermo King Split Lock Washer .255 ID Stainless Steel 557112
Official OEM Thermo King parts catalog entry for the Washer-Split .255 ID SS (Part 557112), 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 refrigeration system Washer-Split .255 ID SS (Part 557112) provides OEM-grade locking retention for fasteners used in transport refrigeration assemblies, helping maintain secure hardware under vibration and thermal cycling in reefer trailer and refrigerated truck applications.
This stainless steel split washer delivers corrosion-resistant locking action where a 0.255-inch inside diameter washer is specified. West Texas Thermo King, a certified Thermo King dealership, lists this genuine OEM component for fleets that require dependable temperature control and continuous uptime across West Texas and the Permian Basin.
Key Features & Customer Benefits
- Stainless Steel Construction – Offers corrosion resistance and long service life in refrigeration environments common to Amarillo, Lubbock, and Odessa.
- Split Lock Design – Provides spring tension to resist loosening from vibration and thermal cycling, supporting secure fastener retention on reefer components.
- Exact OEM Fit – Manufactured to Thermo King specifications for use where a .255 inch inside diameter lock washer is required, ensuring consistent installation results.
- Compact, Reliable Form – Supports precise clamping force for small-diameter bolts and studs across transport refrigeration hardware.
- Service-Ready Availability – Available through a certified dealership to support scheduled maintenance and fleet uptime objectives.
Product Details
| Part Number | 557112 |
| Product Name | Washer - Split .255 ID SS |
| Material | Stainless Steel |
| Inside Diameter (ID) | 0.255 in |
| Type | Split lock washer |
| Intended Use | Fastener locking in Thermo King transport refrigeration assemblies |
Efficiency & Sustainability
This OEM washer supports reliability that reduces unscheduled downtime and associated emissions from field service calls. When fleet components remain secure, units maintain consistent temperature control and fuel-efficient cooling operation. The washer supports Thermo King monitoring and control strategies such as Smart Reefer SR-4 by preserving mechanical integrity that contributes to precise temperature management and regulatory compliance discussions like CARB Evergreen.
Installation & Maintenance Tips
Install with the correct bolt or stud size for a .255-inch ID washer and torque fasteners to Thermo King specifications. Use OEM-grade fasteners and inspect lock washers during routine maintenance intervals to confirm retention and corrosion condition. Replace damaged or deformed washers to preserve clamp load and prevent vibration-related loosening.
Real-World Applications
Used across transport refrigeration tasks for reefer trailers, refrigerated trucks, and condenser or compressor mountings where small-diameter lock washers secure hardware. Ideal for fleet maintenance programs that prioritize uptime, reliability, and precise temperature control during long hauls through West Texas and the Permian Basin.
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 this washer suitable for transport refrigeration fasteners?
A: Yes. This stainless steel split washer with a 0.255-inch inside diameter is specified for applications that require a lock washer of that size in Thermo King transport refrigeration hardware.
Q: Does this part resist corrosion in high-humidity environments?
A: Yes. The stainless steel material provides corrosion resistance suitable for refrigeration systems exposed to moisture and road conditions commonly encountered in West Texas operations.
Q: How should crews inspect this washer during maintenance?
A: Inspect for deformation, cracking, or loss of spring tension and replace any washers that show wear to maintain secure fastener clamping and prevent vibration-related loosening.
Q: Can this washer support reefer trailer hardware on long-haul routes?
A: Yes. Its locking design and stainless steel construction support secure fastening under vibration and thermal cycling typical of long-haul refrigerated transport.
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-Split .255 ID SS (Part 557112), 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 refrigeration system Washer-Split .255 ID SS (Part 557112) provides OEM-grade locking retention for fasteners used in transport refrigeration assemblies, helping maintain secure hardware under vibration and thermal cycling in reefer trailer and refrigerated truck applications.
This stainless steel split washer delivers corrosion-resistant locking action where a 0.255-inch inside diameter washer is specified. West Texas Thermo King, a certified Thermo King dealership, lists this genuine OEM component for fleets that require dependable temperature control and continuous uptime across West Texas and the Permian Basin.
Key Features & Customer Benefits
- Stainless Steel Construction – Offers corrosion resistance and long service life in refrigeration environments common to Amarillo, Lubbock, and Odessa.
- Split Lock Design – Provides spring tension to resist loosening from vibration and thermal cycling, supporting secure fastener retention on reefer components.
- Exact OEM Fit – Manufactured to Thermo King specifications for use where a .255 inch inside diameter lock washer is required, ensuring consistent installation results.
- Compact, Reliable Form – Supports precise clamping force for small-diameter bolts and studs across transport refrigeration hardware.
- Service-Ready Availability – Available through a certified dealership to support scheduled maintenance and fleet uptime objectives.
Product Details
| Part Number | 557112 |
| Product Name | Washer - Split .255 ID SS |
| Material | Stainless Steel |
| Inside Diameter (ID) | 0.255 in |
| Type | Split lock washer |
| Intended Use | Fastener locking in Thermo King transport refrigeration assemblies |
Efficiency & Sustainability
This OEM washer supports reliability that reduces unscheduled downtime and associated emissions from field service calls. When fleet components remain secure, units maintain consistent temperature control and fuel-efficient cooling operation. The washer supports Thermo King monitoring and control strategies such as Smart Reefer SR-4 by preserving mechanical integrity that contributes to precise temperature management and regulatory compliance discussions like CARB Evergreen.
Installation & Maintenance Tips
Install with the correct bolt or stud size for a .255-inch ID washer and torque fasteners to Thermo King specifications. Use OEM-grade fasteners and inspect lock washers during routine maintenance intervals to confirm retention and corrosion condition. Replace damaged or deformed washers to preserve clamp load and prevent vibration-related loosening.
Real-World Applications
Used across transport refrigeration tasks for reefer trailers, refrigerated trucks, and condenser or compressor mountings where small-diameter lock washers secure hardware. Ideal for fleet maintenance programs that prioritize uptime, reliability, and precise temperature control during long hauls through West Texas and the Permian Basin.
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 this washer suitable for transport refrigeration fasteners?
A: Yes. This stainless steel split washer with a 0.255-inch inside diameter is specified for applications that require a lock washer of that size in Thermo King transport refrigeration hardware.
Q: Does this part resist corrosion in high-humidity environments?
A: Yes. The stainless steel material provides corrosion resistance suitable for refrigeration systems exposed to moisture and road conditions commonly encountered in West Texas operations.
Q: How should crews inspect this washer during maintenance?
A: Inspect for deformation, cracking, or loss of spring tension and replace any washers that show wear to maintain secure fastener clamping and prevent vibration-related loosening.
Q: Can this washer support reefer trailer hardware on long-haul routes?
A: Yes. Its locking design and stainless steel construction support secure fastening under vibration and thermal cycling typical of long-haul refrigerated transport.
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.
