Thermo King Key Square Mechanical Keying Component 551108

$2.48

Official OEM Thermo King parts catalog entry for the Thermo King Key Square 551108, 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 Key Square 551108 secures precision mechanical connections across temperature-controlled equipment, delivering trusted fitment and serviceability for Thermo King refrigeration system maintenance and transport refrigeration applications.

West Texas Thermo King supplies this genuine Thermo King Key Square 551108 as a certified OEM component for fleets that depend on consistent temperature control, uptime, and return on investment across the Southwest.

  • OEM Fit – Ensures secure engagement with Thermo King components for reliable mechanical alignment and reduced downtime.
  • Durable Design – Withstands repeated service cycles and vibration typical of reefer trailer and truck-mount operations to support long-term reliability.
  • Simple Installation – Installs cleanly during scheduled maintenance intervals to minimize service time and preserve temperature control integrity.
  • Fleet-Ready – Supports consistent parts tracking and inventory management for fleets operating in Amarillo, Lubbock, Odessa, and the Permian Basin.
  • Serviceable Component – Facilitates quick replacement during inspections to maintain efficiency and prevent unplanned downtime.

Product Details

Part Number551108
Product NameThermo King Key Square 551108
ApplicationMechanical keying and secure connections for Thermo King transport refrigeration components
CertificationGenuine Thermo King OEM part supplied by a certified Thermo King dealership

Efficiency & Sustainability: The Key Square 551108 contributes to reliable mechanical connections that preserve temperature control and fuel-efficient cooling across reefer operations. Consistent mechanical integrity helps support telematics and monitoring programs, including Smart Reefer SR-4, by reducing root-cause service events and optimizing equipment uptime. Use of genuine OEM parts supports compliance with Thermo King service standards and fleet sustainability goals.

Installation & Maintenance Tips: Install using OEM-specified tools and secure fasteners to manufacturer torque recommendations. Inspect the key and mating components during scheduled maintenance intervals and replace at the first sign of wear, corrosion, or deformation. Maintain service records to support fleet reliability and parts traceability.

Real-World Applications: The Thermo King Key Square 551108 performs in refrigerated trailers, truck-mount transport refrigeration units, and other Thermo King mechanical assemblies where secure, precision keying preserves temperature control and component alignment. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.

View all Thermo King Parts

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: contact us for warranty information.

Frequently Asked Questions

Q: Is the Thermo King Key Square 551108 compatible with Thermo King trailer and truck-mount units?
A: Yes. This genuine Thermo King part supports mechanical keying and secure connections across Thermo King transport refrigeration applications, helping maintain alignment and reliable temperature control.

Q: How should maintenance teams inspect this key during service intervals?
A: Inspect for wear, deformation, and corrosion. Replace if any damage appears to preserve secure engagement and prevent component failure.

Q: Can this part help reduce unscheduled downtime for refrigerated fleets?
A: Yes. Using genuine Thermo King components like the Key Square 551108 helps maintain mechanical integrity and reduces service events tied to worn or misaligned hardware.

Q: Where can fleets in West Texas obtain and install this part?
A: West Texas Thermo King supplies and installs genuine Thermo King parts across Amarillo, Lubbock, Odessa, and the Permian Basin. Call (806) 376-5837 for verification and service scheduling.

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 Key Square 551108, 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 Key Square 551108 secures precision mechanical connections across temperature-controlled equipment, delivering trusted fitment and serviceability for Thermo King refrigeration system maintenance and transport refrigeration applications.

West Texas Thermo King supplies this genuine Thermo King Key Square 551108 as a certified OEM component for fleets that depend on consistent temperature control, uptime, and return on investment across the Southwest.

  • OEM Fit – Ensures secure engagement with Thermo King components for reliable mechanical alignment and reduced downtime.
  • Durable Design – Withstands repeated service cycles and vibration typical of reefer trailer and truck-mount operations to support long-term reliability.
  • Simple Installation – Installs cleanly during scheduled maintenance intervals to minimize service time and preserve temperature control integrity.
  • Fleet-Ready – Supports consistent parts tracking and inventory management for fleets operating in Amarillo, Lubbock, Odessa, and the Permian Basin.
  • Serviceable Component – Facilitates quick replacement during inspections to maintain efficiency and prevent unplanned downtime.

Product Details

Part Number551108
Product NameThermo King Key Square 551108
ApplicationMechanical keying and secure connections for Thermo King transport refrigeration components
CertificationGenuine Thermo King OEM part supplied by a certified Thermo King dealership

Efficiency & Sustainability: The Key Square 551108 contributes to reliable mechanical connections that preserve temperature control and fuel-efficient cooling across reefer operations. Consistent mechanical integrity helps support telematics and monitoring programs, including Smart Reefer SR-4, by reducing root-cause service events and optimizing equipment uptime. Use of genuine OEM parts supports compliance with Thermo King service standards and fleet sustainability goals.

Installation & Maintenance Tips: Install using OEM-specified tools and secure fasteners to manufacturer torque recommendations. Inspect the key and mating components during scheduled maintenance intervals and replace at the first sign of wear, corrosion, or deformation. Maintain service records to support fleet reliability and parts traceability.

Real-World Applications: The Thermo King Key Square 551108 performs in refrigerated trailers, truck-mount transport refrigeration units, and other Thermo King mechanical assemblies where secure, precision keying preserves temperature control and component alignment. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.

View all Thermo King Parts

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: contact us for warranty information.

Frequently Asked Questions

Q: Is the Thermo King Key Square 551108 compatible with Thermo King trailer and truck-mount units?
A: Yes. This genuine Thermo King part supports mechanical keying and secure connections across Thermo King transport refrigeration applications, helping maintain alignment and reliable temperature control.

Q: How should maintenance teams inspect this key during service intervals?
A: Inspect for wear, deformation, and corrosion. Replace if any damage appears to preserve secure engagement and prevent component failure.

Q: Can this part help reduce unscheduled downtime for refrigerated fleets?
A: Yes. Using genuine Thermo King components like the Key Square 551108 helps maintain mechanical integrity and reduces service events tied to worn or misaligned hardware.

Q: Where can fleets in West Texas obtain and install this part?
A: West Texas Thermo King supplies and installs genuine Thermo King parts across Amarillo, Lubbock, Odessa, and the Permian Basin. Call (806) 376-5837 for verification and service scheduling.

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.