Thermo King OEM Motor Pulley Mounting Key Refrigeration System 552048
Official OEM Thermo King parts catalog entry for the Thermo King Key 552048, 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 552048 secures motor pulleys on Thermo King refrigeration systems and ensures consistent torque transfer for reliable transport refrigeration operation. Designed for precision fitment, this OEM Thermo King Key supports uptime and dependable temperature control across reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Fit – Ensures precise engagement with Thermo King motor pulleys for secure mounting and minimal shaft movement.
 - Durable Metal Construction – Uses industry-standard materials to maintain integrity under repeated loading and thermal cycles.
 - Simple Replacement – Straightforward installation reduces downtime during routine maintenance or component change-out.
 - Reliability Support – Maintains consistent torque transfer to preserve temperature control and protect compressor operation.
 - Fleet Uptime – Minimizes risk of pulley slippage and unplanned stops, supporting continuous operation across long-haul routes in West Texas.
 
Product Details
The Thermo King Key 552048 is an OEM mechanical key designed to mate with matching keyways in Thermo King motor shafts and pulleys. This component secures pulley-to-shaft connections to prevent relative motion and support precise, repeatable rotation. Specific dimensions and material specifications follow Thermo King OEM standards and are verified at point of sale by certified parts technicians.
Efficiency & Sustainability
Proper installation of the Thermo King Key 552048 contributes to fuel-efficient cooling and consistent temperature control by preventing pulley slippage that can degrade compressor efficiency. When paired with Thermo King advanced platforms such as Smart Reefer SR-4 or Diesel Direct Electric configurations, reliable mechanical components help optimize system efficiency and reduce unnecessary service calls.
Installation & Maintenance Tips
Install the Thermo King Key 552048 using OEM-recommended procedures and tools. Inspect the mating keyway and pulley for wear before assembly and replace any components showing deformation. Tighten retaining hardware to specified torque values and verify alignment during scheduled maintenance intervals to maintain precision and prevent premature wear.
Real-World Applications
The Thermo King Key 552048 installs on motor pulleys within transport refrigeration systems used on reefer trailers, refrigerated trucks, and auxiliary refrigeration units. Fleet managers operating in Amarillo, Lubbock, Odessa, and the Permian Basin rely on properly fitted mechanical components like this key to protect cargo integrity and avoid temperature excursions.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Key 552048 compatible with Precedent and S-610 series units?
A: The Thermo King Key 552048 fits motor pulley assemblies that use the corresponding OEM keyway design. Confirm compatibility with unit model and serial number during parts verification.
Q: How does replacing the key affect fleet reliability?
A: Installing a properly fitted Thermo King Key 552048 restores secure pulley-to-shaft engagement, reduces the risk of slippage, and preserves consistent temperature control across routes.
Q: Can maintenance teams install this part in the field?
A: Certified technicians or trained maintenance staff can install the key using OEM procedures. Inspect mating components and follow torque and alignment guidance to ensure correct installation.
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 552048, 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 552048 secures motor pulleys on Thermo King refrigeration systems and ensures consistent torque transfer for reliable transport refrigeration operation. Designed for precision fitment, this OEM Thermo King Key supports uptime and dependable temperature control across reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Fit – Ensures precise engagement with Thermo King motor pulleys for secure mounting and minimal shaft movement.
 - Durable Metal Construction – Uses industry-standard materials to maintain integrity under repeated loading and thermal cycles.
 - Simple Replacement – Straightforward installation reduces downtime during routine maintenance or component change-out.
 - Reliability Support – Maintains consistent torque transfer to preserve temperature control and protect compressor operation.
 - Fleet Uptime – Minimizes risk of pulley slippage and unplanned stops, supporting continuous operation across long-haul routes in West Texas.
 
Product Details
The Thermo King Key 552048 is an OEM mechanical key designed to mate with matching keyways in Thermo King motor shafts and pulleys. This component secures pulley-to-shaft connections to prevent relative motion and support precise, repeatable rotation. Specific dimensions and material specifications follow Thermo King OEM standards and are verified at point of sale by certified parts technicians.
Efficiency & Sustainability
Proper installation of the Thermo King Key 552048 contributes to fuel-efficient cooling and consistent temperature control by preventing pulley slippage that can degrade compressor efficiency. When paired with Thermo King advanced platforms such as Smart Reefer SR-4 or Diesel Direct Electric configurations, reliable mechanical components help optimize system efficiency and reduce unnecessary service calls.
Installation & Maintenance Tips
Install the Thermo King Key 552048 using OEM-recommended procedures and tools. Inspect the mating keyway and pulley for wear before assembly and replace any components showing deformation. Tighten retaining hardware to specified torque values and verify alignment during scheduled maintenance intervals to maintain precision and prevent premature wear.
Real-World Applications
The Thermo King Key 552048 installs on motor pulleys within transport refrigeration systems used on reefer trailers, refrigerated trucks, and auxiliary refrigeration units. Fleet managers operating in Amarillo, Lubbock, Odessa, and the Permian Basin rely on properly fitted mechanical components like this key to protect cargo integrity and avoid temperature excursions.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Key 552048 compatible with Precedent and S-610 series units?
A: The Thermo King Key 552048 fits motor pulley assemblies that use the corresponding OEM keyway design. Confirm compatibility with unit model and serial number during parts verification.
Q: How does replacing the key affect fleet reliability?
A: Installing a properly fitted Thermo King Key 552048 restores secure pulley-to-shaft engagement, reduces the risk of slippage, and preserves consistent temperature control across routes.
Q: Can maintenance teams install this part in the field?
A: Certified technicians or trained maintenance staff can install the key using OEM procedures. Inspect mating components and follow torque and alignment guidance to ensure correct installation.
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.