Thermo King Woodruff Key Semicircular Shaft Retention 555371
Official OEM Thermo King parts catalog entry for the Thermo King 555371 Woodruff Key, 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 555371 Woodruff Key delivers OEM-grade shaft retention for Thermo King refrigeration systems, ensuring precise coupling and dependable torque transfer in transport refrigeration and reefer trailer applications. This Woodruff key supports consistent temperature control and uninterrupted operation across fleets and regional routes in West Texas.
- OEM Fit – Matches Thermo King keyways to ensure secure, slip-free engagement between shaft and rotating components for reliable uptime.
- Precision Seating – Designed for clean seating in curved shaft keyways, supporting accurate alignment of pulleys, clutches, and hubs to reduce vibration and wear.
- Durable Construction – Manufactured to meet Thermo King material and tolerance standards for long-term service life under typical reefer operating conditions.
- Serviceability – Simple install and inspection steps minimize shop time during scheduled maintenance intervals, supporting faster return-to-service for fleet units.
- Fleet Compatibility – Suits a wide range of Thermo King transport refrigeration models used across the region, from reefer trailers to transport refrigeration units.
Product Details
The Thermo King 555371 Woodruff Key is a semicircular key engineered to fit into the curved keyway of a shaft and engage mating components such as clutch hubs, pulleys, and gears. It conforms to Thermo King OEM specifications for material and fit, providing reliable torque transmission and accurate component positioning. Specific dimensions vary by application; confirm fitment with vehicle serial or model information when ordering.
Efficiency & Sustainability
Maintaining secure mechanical couplings preserves drive-train alignment and reduces wear on clutches and pulleys, which supports fuel-efficient cooling and lowers lifecycle operating costs for temperature control systems. Proper component fit contributes to uninterrupted operation with Smart Reefer SR-4 or Diesel Direct Electric platforms and aligns with CARB Evergreen compliance practices where applicable.
Installation & Maintenance Tips
Install the Woodruff key by seating it fully in the shaft keyway and sliding the mating component into place without forcing. Inspect the key and keyway during scheduled maintenance intervals and replace at the first sign of abnormal wear or deformation. Use Thermo King-approved fasteners and follow published service procedures for the specific model to maintain alignment and maximize component life.
Real-World Applications
The Thermo King 555371 Woodruff Key is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units where precise shaft-to-component engagement is essential. Typical applications include clutch hubs, compressor pulleys, and drive assemblies across Precedent and S-Series platforms such as S-610M and S-610DE. 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 precision 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: Contact West Texas Thermo King.
Frequently Asked Questions
Q: Is the Thermo King 555371 Woodruff Key compatible with Precedent and S-Series units?
A: Compatibility depends on the specific shaft and keyway dimensions of the unit. This Woodruff key is manufactured to Thermo King standards and suits many Precedent and S-Series applications; confirm compatibility with model and serial information.
Q: How often should the Woodruff key be inspected?
A: Inspect the key during routine service intervals or anytime a pulley, clutch, or hub is removed. Replace the key at the first sign of wear or deformation to maintain reliable torque transfer and component alignment.
Q: Can this part affect temperature control performance?
A: Yes. A properly seated Woodruff key ensures correct alignment of pulleys and clutches, which supports consistent compressor operation and stable temperature control for reefer units.
Q: Where can fleets in West Texas get installation support?
A: Certified technicians at West Texas Thermo King provide installation, diagnostics, and service across Amarillo, Lubbock, Odessa, and the Permian Basin.
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 555371 Woodruff Key, 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 555371 Woodruff Key delivers OEM-grade shaft retention for Thermo King refrigeration systems, ensuring precise coupling and dependable torque transfer in transport refrigeration and reefer trailer applications. This Woodruff key supports consistent temperature control and uninterrupted operation across fleets and regional routes in West Texas.
- OEM Fit – Matches Thermo King keyways to ensure secure, slip-free engagement between shaft and rotating components for reliable uptime.
- Precision Seating – Designed for clean seating in curved shaft keyways, supporting accurate alignment of pulleys, clutches, and hubs to reduce vibration and wear.
- Durable Construction – Manufactured to meet Thermo King material and tolerance standards for long-term service life under typical reefer operating conditions.
- Serviceability – Simple install and inspection steps minimize shop time during scheduled maintenance intervals, supporting faster return-to-service for fleet units.
- Fleet Compatibility – Suits a wide range of Thermo King transport refrigeration models used across the region, from reefer trailers to transport refrigeration units.
Product Details
The Thermo King 555371 Woodruff Key is a semicircular key engineered to fit into the curved keyway of a shaft and engage mating components such as clutch hubs, pulleys, and gears. It conforms to Thermo King OEM specifications for material and fit, providing reliable torque transmission and accurate component positioning. Specific dimensions vary by application; confirm fitment with vehicle serial or model information when ordering.
Efficiency & Sustainability
Maintaining secure mechanical couplings preserves drive-train alignment and reduces wear on clutches and pulleys, which supports fuel-efficient cooling and lowers lifecycle operating costs for temperature control systems. Proper component fit contributes to uninterrupted operation with Smart Reefer SR-4 or Diesel Direct Electric platforms and aligns with CARB Evergreen compliance practices where applicable.
Installation & Maintenance Tips
Install the Woodruff key by seating it fully in the shaft keyway and sliding the mating component into place without forcing. Inspect the key and keyway during scheduled maintenance intervals and replace at the first sign of abnormal wear or deformation. Use Thermo King-approved fasteners and follow published service procedures for the specific model to maintain alignment and maximize component life.
Real-World Applications
The Thermo King 555371 Woodruff Key is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units where precise shaft-to-component engagement is essential. Typical applications include clutch hubs, compressor pulleys, and drive assemblies across Precedent and S-Series platforms such as S-610M and S-610DE. 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 precision 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: Contact West Texas Thermo King.
Frequently Asked Questions
Q: Is the Thermo King 555371 Woodruff Key compatible with Precedent and S-Series units?
A: Compatibility depends on the specific shaft and keyway dimensions of the unit. This Woodruff key is manufactured to Thermo King standards and suits many Precedent and S-Series applications; confirm compatibility with model and serial information.
Q: How often should the Woodruff key be inspected?
A: Inspect the key during routine service intervals or anytime a pulley, clutch, or hub is removed. Replace the key at the first sign of wear or deformation to maintain reliable torque transfer and component alignment.
Q: Can this part affect temperature control performance?
A: Yes. A properly seated Woodruff key ensures correct alignment of pulleys and clutches, which supports consistent compressor operation and stable temperature control for reefer units.
Q: Where can fleets in West Texas get installation support?
A: Certified technicians at West Texas Thermo King provide installation, diagnostics, and service across Amarillo, Lubbock, Odessa, and the Permian Basin.
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.