Thermo King Refrigeration Dehydrator Filter Drier 664857
Official OEM Thermo King parts catalog entry for the Thermo King Dehydrator 664857, 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 Dehydrator 664857 protects Thermo King refrigeration system integrity by removing moisture and particulates from the refrigerant circuit. West Texas Thermo King supplies this OEM-quality dehydrator to support uptime, precise temperature control, and long-term reliability for transport refrigeration fleets.
Thermo King refrigeration system owners and fleet managers depend on this dehydrator to prevent freeze-ups, corrosion, and compressor damage while maintaining fuel-efficient cooling across reefer trailers and truck-mounted units.
Key Features & Customer Benefits
- OEM-Grade Desiccant Cartridge – Absorbs moisture effectively to prevent ice formation and acid-related corrosion in refrigerant circuits.
- Contaminant Filtration – Traps particulates to reduce wear on compressors and valves, supporting longer service intervals and lower lifecycle costs.
- Vibration-Resistant Design – Engineered for mobile applications to maintain sealing and function in harsh West Texas operating environments.
- Direct Fit for Thermo King Units – Compatible with common Thermo King models such as Precedent S-610M, S-610DE, Smart Reefer SR-4 and Diesel Direct Electric configurations where specified.
- Plug-and-Replace Serviceability – Simplifies scheduled maintenance and minimizes downtime during field service calls.
- Fleet Uptime Focus – Supports predictable temperature control and reduces risk of load loss for refrigerated freight across Amarillo, Lubbock, Odessa, and the Permian Basin.
Product Details
The Thermo King Dehydrator 664857 is a sealed filter-drier style component containing desiccant media and a filtration element. It installs in the liquid or suction line as specified by OEM service procedures and operates to remove water vapor and solid contaminants from the refrigerant stream. This component meets Thermo King engineering requirements for transport refrigeration and integrates with common Thermo King evaporator and compressor configurations without modification.
Efficiency & Sustainability
This dehydrator supports efficient, precise temperature control that helps reduce fuel consumption by keeping refrigeration cycles operating as designed. Use in conjunction with Thermo King Smart Reefer SR-4 controls and CARB Evergreen-compliant equipment where applicable to maximize emissions and efficiency benefits for regulated fleets operating across California-adjacent routes and the broader Southwest.
Installation & Maintenance Tips
Install using OEM service procedures and torque specifications. Use Thermo King-approved fittings and clamps for secure connections and perform dehydrator replacement during scheduled service intervals or when diagnostic indicators show moisture or contamination. Inspect surrounding lines and components for leaks when replacing the dehydrator.
Real-World Applications
This dehydrator fits reefer trailers, refrigerated trucks, and truck-mounted transport refrigeration units operating in long-haul and regional distribution routes. It performs reliably under the vibration, temperature swings, and duty cycles common in food, pharmaceutical, and perishable cargo transport across West Texas.
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 reach out to the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Dehydrator 664857 compatible with Precedent series units?
A: Yes. The dehydrator is designed for secure fit and reliable moisture control in many Precedent-series and comparable Thermo King transport refrigeration systems where the OEM specifies this part number.
Q: How often should the dehydrator be replaced?
A: Replace during scheduled maintenance intervals or when diagnostics indicate moisture or contamination. Replacement frequency depends on operating hours, load profiles, and system exposure to contaminants.
Q: Can field technicians install this part during routine service calls?
A: Yes. Technicians follow Thermo King service procedures and use OEM fittings to ensure correct installation and leak-free operation.
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 Dehydrator 664857, 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 Dehydrator 664857 protects Thermo King refrigeration system integrity by removing moisture and particulates from the refrigerant circuit. West Texas Thermo King supplies this OEM-quality dehydrator to support uptime, precise temperature control, and long-term reliability for transport refrigeration fleets.
Thermo King refrigeration system owners and fleet managers depend on this dehydrator to prevent freeze-ups, corrosion, and compressor damage while maintaining fuel-efficient cooling across reefer trailers and truck-mounted units.
Key Features & Customer Benefits
- OEM-Grade Desiccant Cartridge – Absorbs moisture effectively to prevent ice formation and acid-related corrosion in refrigerant circuits.
- Contaminant Filtration – Traps particulates to reduce wear on compressors and valves, supporting longer service intervals and lower lifecycle costs.
- Vibration-Resistant Design – Engineered for mobile applications to maintain sealing and function in harsh West Texas operating environments.
- Direct Fit for Thermo King Units – Compatible with common Thermo King models such as Precedent S-610M, S-610DE, Smart Reefer SR-4 and Diesel Direct Electric configurations where specified.
- Plug-and-Replace Serviceability – Simplifies scheduled maintenance and minimizes downtime during field service calls.
- Fleet Uptime Focus – Supports predictable temperature control and reduces risk of load loss for refrigerated freight across Amarillo, Lubbock, Odessa, and the Permian Basin.
Product Details
The Thermo King Dehydrator 664857 is a sealed filter-drier style component containing desiccant media and a filtration element. It installs in the liquid or suction line as specified by OEM service procedures and operates to remove water vapor and solid contaminants from the refrigerant stream. This component meets Thermo King engineering requirements for transport refrigeration and integrates with common Thermo King evaporator and compressor configurations without modification.
Efficiency & Sustainability
This dehydrator supports efficient, precise temperature control that helps reduce fuel consumption by keeping refrigeration cycles operating as designed. Use in conjunction with Thermo King Smart Reefer SR-4 controls and CARB Evergreen-compliant equipment where applicable to maximize emissions and efficiency benefits for regulated fleets operating across California-adjacent routes and the broader Southwest.
Installation & Maintenance Tips
Install using OEM service procedures and torque specifications. Use Thermo King-approved fittings and clamps for secure connections and perform dehydrator replacement during scheduled service intervals or when diagnostic indicators show moisture or contamination. Inspect surrounding lines and components for leaks when replacing the dehydrator.
Real-World Applications
This dehydrator fits reefer trailers, refrigerated trucks, and truck-mounted transport refrigeration units operating in long-haul and regional distribution routes. It performs reliably under the vibration, temperature swings, and duty cycles common in food, pharmaceutical, and perishable cargo transport across West Texas.
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 reach out to the service department for confirmation.
Frequently Asked Questions
Q: Is the Thermo King Dehydrator 664857 compatible with Precedent series units?
A: Yes. The dehydrator is designed for secure fit and reliable moisture control in many Precedent-series and comparable Thermo King transport refrigeration systems where the OEM specifies this part number.
Q: How often should the dehydrator be replaced?
A: Replace during scheduled maintenance intervals or when diagnostics indicate moisture or contamination. Replacement frequency depends on operating hours, load profiles, and system exposure to contaminants.
Q: Can field technicians install this part during routine service calls?
A: Yes. Technicians follow Thermo King service procedures and use OEM fittings to ensure correct installation and leak-free operation.
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.
