Thermo King Valve Stem Seal for Yanmar Engines 331512
Official OEM Thermo King parts catalog entry for the Thermo King Valve Seal 331512, 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 Valve Seal 331512 supports long-term reliability for Thermo King refrigeration systems by sealing the valve stem and guide interface to reduce oil migration and maintain combustion and lubrication control in transport refrigeration engines. West Texas Thermo King supplies this OEM-grade component to keep reefers and diesel direct electric systems operating with dependable uptime.
Key Features & Customer Benefits
- OEM Fit and Function – Matches Thermo King valve sealing requirements for secure installation and consistent service intervals.
 - Valve Stem Sealing – Prevents oil seepage past the valve guide to protect combustion chambers and maintain temperature control.
 - Engine Compatibility – Designed for use on Thermo King units with compatible Yanmar engines, supporting efficient engine operation and reduced maintenance downtime.
 - Fleet Uptime Focus – Limits oil-related failures and preserves refrigerant system cleanliness for continuous transport refrigeration performance.
 - Certified Support – Backed by West Texas Thermo King certified technicians for correct selection and installation across regional fleets in the Permian Basin and West Texas.
 
Product Details
| Part Number | 331512 | 
| Product Name | Thermo King Valve Seal 331512 | 
| Function | Seals valve stem to valve guide to reduce oil leakage and protect engine combustion chambers | 
| Compatibility | Thermo King transport refrigeration engines using compatible Yanmar models (TK 2.35, TK 3.53, TK 3.88, TK 3.95) | 
Efficiency & Sustainability
The Thermo King Valve Seal 331512 supports fuel-efficient cooling and consistent temperature control by maintaining proper lubrication separation and minimizing oil contamination that can affect compressor and engine efficiency. This OEM component aligns with Thermo King service standards for Smart Reefer SR-4 and CARB Evergreen–compliant operations where correct sealing reduces unplanned service and extends component life.
Installation & Maintenance Tips
Install using OEM replacement procedures and inspect valve stems and guides during scheduled maintenance intervals. Replace valve seals in matched sets when signs of oil leakage, hardening, or wear appear. West Texas Thermo King certified technicians recommend using proper installation tools and verifying guide condition for a long-lasting seal and precise engine operation.
Real-World Applications
The Thermo King Valve Seal 331512 is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units that rely on Yanmar-based Thermo King engines. Fleets operating in Amarillo, Lubbock, Odessa, and across West Texas benefit from reduced oil consumption, improved engine reliability, and sustained temperature control for perishable cargo.
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 Valve Seal 331512 compatible with Thermo King refrigeration units that use Yanmar engines?
A: Yes. The Valve Seal 331512 is specified for Thermo King units using compatible Yanmar engine models such as TK 2.35, TK 3.53, TK 3.88, and TK 3.95 and provides the correct sealing function when installed per OEM guidance.
Q: When should fleets replace valve seals?
A: Replace valve seals during scheduled engine maintenance or when visual inspection shows oil leakage, hardening, or wear. Replacing seals proactively reduces the risk of oil-related engine issues and helps maintain accurate temperature control for refrigerated loads.
Q: Does installation require special tools?
A: Installation follows Thermo King OEM procedures and benefits from proper valve seal installation tools and the diagnostic expertise of certified technicians to confirm guide condition and seating integrity.
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 Valve Seal 331512, 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 Valve Seal 331512 supports long-term reliability for Thermo King refrigeration systems by sealing the valve stem and guide interface to reduce oil migration and maintain combustion and lubrication control in transport refrigeration engines. West Texas Thermo King supplies this OEM-grade component to keep reefers and diesel direct electric systems operating with dependable uptime.
Key Features & Customer Benefits
- OEM Fit and Function – Matches Thermo King valve sealing requirements for secure installation and consistent service intervals.
 - Valve Stem Sealing – Prevents oil seepage past the valve guide to protect combustion chambers and maintain temperature control.
 - Engine Compatibility – Designed for use on Thermo King units with compatible Yanmar engines, supporting efficient engine operation and reduced maintenance downtime.
 - Fleet Uptime Focus – Limits oil-related failures and preserves refrigerant system cleanliness for continuous transport refrigeration performance.
 - Certified Support – Backed by West Texas Thermo King certified technicians for correct selection and installation across regional fleets in the Permian Basin and West Texas.
 
Product Details
| Part Number | 331512 | 
| Product Name | Thermo King Valve Seal 331512 | 
| Function | Seals valve stem to valve guide to reduce oil leakage and protect engine combustion chambers | 
| Compatibility | Thermo King transport refrigeration engines using compatible Yanmar models (TK 2.35, TK 3.53, TK 3.88, TK 3.95) | 
Efficiency & Sustainability
The Thermo King Valve Seal 331512 supports fuel-efficient cooling and consistent temperature control by maintaining proper lubrication separation and minimizing oil contamination that can affect compressor and engine efficiency. This OEM component aligns with Thermo King service standards for Smart Reefer SR-4 and CARB Evergreen–compliant operations where correct sealing reduces unplanned service and extends component life.
Installation & Maintenance Tips
Install using OEM replacement procedures and inspect valve stems and guides during scheduled maintenance intervals. Replace valve seals in matched sets when signs of oil leakage, hardening, or wear appear. West Texas Thermo King certified technicians recommend using proper installation tools and verifying guide condition for a long-lasting seal and precise engine operation.
Real-World Applications
The Thermo King Valve Seal 331512 is ideal for reefer trailers, refrigerated trucks, and transport refrigeration units that rely on Yanmar-based Thermo King engines. Fleets operating in Amarillo, Lubbock, Odessa, and across West Texas benefit from reduced oil consumption, improved engine reliability, and sustained temperature control for perishable cargo.
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 Valve Seal 331512 compatible with Thermo King refrigeration units that use Yanmar engines?
A: Yes. The Valve Seal 331512 is specified for Thermo King units using compatible Yanmar engine models such as TK 2.35, TK 3.53, TK 3.88, and TK 3.95 and provides the correct sealing function when installed per OEM guidance.
Q: When should fleets replace valve seals?
A: Replace valve seals during scheduled engine maintenance or when visual inspection shows oil leakage, hardening, or wear. Replacing seals proactively reduces the risk of oil-related engine issues and helps maintain accurate temperature control for refrigerated loads.
Q: Does installation require special tools?
A: Installation follows Thermo King OEM procedures and benefits from proper valve seal installation tools and the diagnostic expertise of certified technicians to confirm guide condition and seating integrity.
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.