Thermo King TK376 Flywheel-End Engine Oil Seal 334123
Official OEM Thermo King parts catalog entry for the Seal TK376, 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 Seal TK376 (part 334123) protects critical engine seals on Thermo King transport refrigeration engines and supports long-term uptime for temperature-critical fleets. Thermo King refrigeration system operators rely on this oil seal to maintain oil integrity at the flywheel end of the TK376 engine, preventing leaks and preserving accurate temperature control for reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Part Number 334123 – Ensures exact fit and compatibility with Thermo King TK376 engine installations for reliable sealing.
- Flywheel-End Seal Design – Prevents oil leakage where the crankshaft meets the flywheel, reducing contamination risk and downtime.
- Durable Elastomer Construction – Resists oil and heat exposure typical of diesel-driven refrigeration engines to extend service intervals.
- Precision Fit – Supports correct alignment and torque, helping maintain engine efficiency and smooth operation under load.
- Fleet Uptime Focus – Reduces unplanned maintenance and supports predictable service scheduling for fleets operating in West Texas and the Permian Basin.
- Certified Dealership Support – Backed by Thermo King engineering and certified technicians at West Texas Thermo King for verification and installation guidance.
Product Details
| Part Number | 334123 |
| Product Name | Seal TK376 |
| Function | Oil seal for the flywheel end of the TK376 engine |
| Compatibility | Thermo King TK376 engine (transport refrigeration applications) |
| Material | Engine-grade elastomeric oil seal (OEM specification) |
Efficiency & Sustainability
The Seal TK376 supports reliable engine operation that contributes to consistent temperature control and fuel-efficient cooling across Thermo King transport refrigeration fleets. Proper sealing reduces oil loss and the need for unscheduled repairs, helping fleets maintain emissions and efficiency targets while supporting CARB Evergreen and modern control strategies such as Smart Reefer SR-4 where applicable.
Installation & Maintenance Tips
Install using OEM-approved tools and service procedures to ensure correct seating at the flywheel end. Use recommended fasteners and torque values, inspect the shaft and housing surfaces for wear before fitting, and include the seal in routine engine inspections. Replace during scheduled service intervals to prevent secondary damage from oil leakage.
Real-World Applications
The Seal TK376 serves refrigerated truck and reefer trailer engines that require robust flywheel-end sealing for temperature-critical cargo. It fits fleet operations across Amarillo, Lubbock, Odessa, and the broader West Texas region, supporting food-grade transport, pharmaceutical hauls, and long-haul refrigerated logistics.
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 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 reach the service department directly through the contact page.
Frequently Asked Questions
Q: Is Seal TK376 (334123) compatible with Thermo King TK376 engines?
A: Yes. This part is specified for the flywheel end of the TK376 engine and fits Thermo King TK376 engine configurations used in transport refrigeration applications.
Q: How does replacing this seal impact fleet reliability?
A: Replacing a worn flywheel-end seal prevents oil loss and contamination, reduces the risk of secondary engine damage, and supports predictable maintenance intervals that improve overall fleet reliability and uptime.
Q: Can West Texas Thermo King install this seal and verify fitment?
A: Yes. Certified technicians at West Texas Thermo King provide installation, inspection, and fitment verification for Thermo King parts across Amarillo, Lubbock, Odessa, and West Texas.
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 Seal TK376, 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 Seal TK376 (part 334123) protects critical engine seals on Thermo King transport refrigeration engines and supports long-term uptime for temperature-critical fleets. Thermo King refrigeration system operators rely on this oil seal to maintain oil integrity at the flywheel end of the TK376 engine, preventing leaks and preserving accurate temperature control for reefer trailers and refrigerated trucks.
Key Features & Customer Benefits
- OEM Part Number 334123 – Ensures exact fit and compatibility with Thermo King TK376 engine installations for reliable sealing.
- Flywheel-End Seal Design – Prevents oil leakage where the crankshaft meets the flywheel, reducing contamination risk and downtime.
- Durable Elastomer Construction – Resists oil and heat exposure typical of diesel-driven refrigeration engines to extend service intervals.
- Precision Fit – Supports correct alignment and torque, helping maintain engine efficiency and smooth operation under load.
- Fleet Uptime Focus – Reduces unplanned maintenance and supports predictable service scheduling for fleets operating in West Texas and the Permian Basin.
- Certified Dealership Support – Backed by Thermo King engineering and certified technicians at West Texas Thermo King for verification and installation guidance.
Product Details
| Part Number | 334123 |
| Product Name | Seal TK376 |
| Function | Oil seal for the flywheel end of the TK376 engine |
| Compatibility | Thermo King TK376 engine (transport refrigeration applications) |
| Material | Engine-grade elastomeric oil seal (OEM specification) |
Efficiency & Sustainability
The Seal TK376 supports reliable engine operation that contributes to consistent temperature control and fuel-efficient cooling across Thermo King transport refrigeration fleets. Proper sealing reduces oil loss and the need for unscheduled repairs, helping fleets maintain emissions and efficiency targets while supporting CARB Evergreen and modern control strategies such as Smart Reefer SR-4 where applicable.
Installation & Maintenance Tips
Install using OEM-approved tools and service procedures to ensure correct seating at the flywheel end. Use recommended fasteners and torque values, inspect the shaft and housing surfaces for wear before fitting, and include the seal in routine engine inspections. Replace during scheduled service intervals to prevent secondary damage from oil leakage.
Real-World Applications
The Seal TK376 serves refrigerated truck and reefer trailer engines that require robust flywheel-end sealing for temperature-critical cargo. It fits fleet operations across Amarillo, Lubbock, Odessa, and the broader West Texas region, supporting food-grade transport, pharmaceutical hauls, and long-haul refrigerated logistics.
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 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 reach the service department directly through the contact page.
Frequently Asked Questions
Q: Is Seal TK376 (334123) compatible with Thermo King TK376 engines?
A: Yes. This part is specified for the flywheel end of the TK376 engine and fits Thermo King TK376 engine configurations used in transport refrigeration applications.
Q: How does replacing this seal impact fleet reliability?
A: Replacing a worn flywheel-end seal prevents oil loss and contamination, reduces the risk of secondary engine damage, and supports predictable maintenance intervals that improve overall fleet reliability and uptime.
Q: Can West Texas Thermo King install this seal and verify fitment?
A: Yes. Certified technicians at West Texas Thermo King provide installation, inspection, and fitment verification for Thermo King parts across Amarillo, Lubbock, Odessa, and West Texas.
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.
