Thermo King OEM Thermostat Housing Gasket Yanmar Compatible 331520
Official OEM Thermo King parts catalog entry for the Gasket X, 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 331520 Gasket X delivers OEM-grade sealing for temperature-critical engine components, supporting reliable operation across Thermo King refrigeration systems. This thermostat housing gasket seals coolant passages to prevent leaks and maintain precise engine temperature control for transport refrigeration applications.
The Thermo King refrigeration system receives dependable sealing from Gasket X when installed on Thermo King units that use Yanmar powerplants. This part supports uptime, reduces service downtime, and preserves cooling efficiency across reefer trailers and refrigerated truck fleets operating in West Texas and the Permian Basin.
- OEM Fit – Ensures a precise seal at the thermostat housing for leak-free coolant containment and correct thermostat operation.
 - Engine-Grade Durability – Resists engine bay heat and coolant exposure to support long service intervals and fleet reliability.
 - Yanmar Compatibility – Designed for Thermo King units powered by Yanmar engines such as TK235, TK353, TK388, and TK395 for direct fitment.
 - Uptime Focus – Prevents coolant loss that can lead to overheating, helping fleets maximize vehicle uptime and reduce roadside repairs.
 - Service-Friendly – Facilitates efficient replacement during scheduled maintenance to minimize labor time and return units to service fast.
 
Product Details
Part Number: 331520 — Product Name: Gasket X. This component functions as the thermostat housing gasket for Thermo King refrigeration unit engines that use Yanmar powerplants. Gasket X seals the thermostat housing to maintain coolant integrity and consistent temperature regulation, which supports precise compressor and engine operation in transport refrigeration systems. Confirm fitment against engine model numbers TK235, TK353, TK388, and TK395 prior to installation.
Efficiency & Sustainability
Proper sealing with Gasket X reduces coolant loss and helps maintain optimal engine temperature, which supports fuel-efficient cooling and consistent refrigeration performance. Reliable sealing contributes to lower emissions and reduced refrigerant and fuel waste across refrigerated routes, aligning with fleet goals for efficiency and regulatory programs such as CARB Evergreen where applicable.
Installation & Maintenance Tips
Inspect mating surfaces for corrosion or residue before installation and replace any damaged hardware. Use OEM-spec bolts and torque values per the Thermo King service manual to ensure an even seal. Inspect the gasket during scheduled service intervals and when performing engine cooling system maintenance to preserve reliability and avoid unplanned downtime.
Real-World Applications
Gasket X installs on Thermo King reefer trailers, refrigerated trucks, and diesel direct electric units that use compatible Yanmar engines. Fleets operating Precedent-series or older Thermo King models that retain Yanmar powerplants rely on this gasket to protect engine cooling systems and maintain temperature control for perishable cargo throughout long hauls.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
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 or contact the service department for confirmation.
Frequently Asked Questions
Q: Is Gasket X compatible with Thermo King units that use Yanmar engines?
A: Yes. Gasket X fits thermostat housings on Thermo King units equipped with Yanmar engines such as TK235, TK353, TK388, and TK395 when matched to the correct engine model.
Q: How often should the thermostat housing gasket be inspected?
A: Inspect the gasket during scheduled cooling system maintenance and whenever there is evidence of coolant leakage or temperature regulation issues to ensure continued reliability.
Q: What are common signs that this gasket requires replacement?
A: Visible coolant leaks at the thermostat housing, recurring engine overheating, or coolant loss between scheduled services indicate a gasket replacement need.
Q: Can service teams in West Texas get installation support?
A: Yes. Certified technicians at West Texas Thermo King provide verification and installation support across Amarillo, Lubbock, Odessa, and surrounding areas.
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 Gasket X, 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 331520 Gasket X delivers OEM-grade sealing for temperature-critical engine components, supporting reliable operation across Thermo King refrigeration systems. This thermostat housing gasket seals coolant passages to prevent leaks and maintain precise engine temperature control for transport refrigeration applications.
The Thermo King refrigeration system receives dependable sealing from Gasket X when installed on Thermo King units that use Yanmar powerplants. This part supports uptime, reduces service downtime, and preserves cooling efficiency across reefer trailers and refrigerated truck fleets operating in West Texas and the Permian Basin.
- OEM Fit – Ensures a precise seal at the thermostat housing for leak-free coolant containment and correct thermostat operation.
 - Engine-Grade Durability – Resists engine bay heat and coolant exposure to support long service intervals and fleet reliability.
 - Yanmar Compatibility – Designed for Thermo King units powered by Yanmar engines such as TK235, TK353, TK388, and TK395 for direct fitment.
 - Uptime Focus – Prevents coolant loss that can lead to overheating, helping fleets maximize vehicle uptime and reduce roadside repairs.
 - Service-Friendly – Facilitates efficient replacement during scheduled maintenance to minimize labor time and return units to service fast.
 
Product Details
Part Number: 331520 — Product Name: Gasket X. This component functions as the thermostat housing gasket for Thermo King refrigeration unit engines that use Yanmar powerplants. Gasket X seals the thermostat housing to maintain coolant integrity and consistent temperature regulation, which supports precise compressor and engine operation in transport refrigeration systems. Confirm fitment against engine model numbers TK235, TK353, TK388, and TK395 prior to installation.
Efficiency & Sustainability
Proper sealing with Gasket X reduces coolant loss and helps maintain optimal engine temperature, which supports fuel-efficient cooling and consistent refrigeration performance. Reliable sealing contributes to lower emissions and reduced refrigerant and fuel waste across refrigerated routes, aligning with fleet goals for efficiency and regulatory programs such as CARB Evergreen where applicable.
Installation & Maintenance Tips
Inspect mating surfaces for corrosion or residue before installation and replace any damaged hardware. Use OEM-spec bolts and torque values per the Thermo King service manual to ensure an even seal. Inspect the gasket during scheduled service intervals and when performing engine cooling system maintenance to preserve reliability and avoid unplanned downtime.
Real-World Applications
Gasket X installs on Thermo King reefer trailers, refrigerated trucks, and diesel direct electric units that use compatible Yanmar engines. Fleets operating Precedent-series or older Thermo King models that retain Yanmar powerplants rely on this gasket to protect engine cooling systems and maintain temperature control for perishable cargo throughout long hauls.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
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 or contact the service department for confirmation.
Frequently Asked Questions
Q: Is Gasket X compatible with Thermo King units that use Yanmar engines?
A: Yes. Gasket X fits thermostat housings on Thermo King units equipped with Yanmar engines such as TK235, TK353, TK388, and TK395 when matched to the correct engine model.
Q: How often should the thermostat housing gasket be inspected?
A: Inspect the gasket during scheduled cooling system maintenance and whenever there is evidence of coolant leakage or temperature regulation issues to ensure continued reliability.
Q: What are common signs that this gasket requires replacement?
A: Visible coolant leaks at the thermostat housing, recurring engine overheating, or coolant loss between scheduled services indicate a gasket replacement need.
Q: Can service teams in West Texas get installation support?
A: Yes. Certified technicians at West Texas Thermo King provide verification and installation support across Amarillo, Lubbock, Odessa, and surrounding areas.
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.