Thermo King O-Ring EPDM-154 AS568-154 Refrigeration Seal 334543
Official OEM Thermo King parts catalog entry for the Thermo King O-Ring EPDM-154, 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 O-Ring EPDM-154 supports leak-free sealing across temperature-controlled assemblies, delivering OEM-grade reliability for Thermo King refrigeration systems in transport refrigeration and reefer trailer applications.
The Thermo King O-Ring EPDM-154 provides a durable, weather-resistant seal designed for service and maintenance of temperature control components. Engineered from EPDM elastomer to resist ozone, steam, and glycol-based fluids, this O-ring helps maintain efficient cooling, reduce downtime, and protect fleet ROI across West Texas operations.
- OEM Material Specification – EPDM elastomer provides long-term resistance to ozone, weathering, and steam for dependable sealing in refrigerated environments.
- AS568-154 Precision – Manufactured to AS568-154 sizing for reliable, repeatable fit in Thermo King service points and hose connections.
- Service Reliability – Maintains seal integrity under thermal cycling to support consistent temperature control and reduced leak-related service events.
- Fleet Uptime – Enables quick replacement and return-to-service during scheduled maintenance or roadside repairs, minimizing downtime across Amarillo to the Permian Basin.
- Compatibility with Glycol Systems – Performs with glycol-based refrigerant related fluids commonly used in Thermo King systems, supporting fuel-efficient cooling strategies.
- Certified Dealership Support – Supplied through West Texas Thermo King with parts verification and installation guidance from certified technicians.
Product Details
| Part Number | 334543 |
| Product Name | O-Ring EPDM-154 |
| Material | EPDM (ethylene propylene diene monomer) |
| Standard Size | AS568-154 (inner diameter ≈ 3.74 in; cross section ≈ 0.103 in / 3/32 in) |
| Typical Hardness | Approximately 70–80 Shore A (typical EPDM service hardness) |
| Compatibility | Service use in Thermo King refrigeration systems requiring AS568-154 EPDM seals |
Efficiency & Sustainability
The Thermo King O-Ring EPDM-154 supports efficient, fuel-conscious refrigeration by preserving seal integrity in coolant and glycol circuits. Use within Smart Reefer SR-4 and other Thermo King platforms safeguards temperature control and contributes to reduced emissions from fewer service interventions. EPDM construction aligns with long-life service strategies favored by fleets operating across West Texas and the Permian Basin.
Installation & Maintenance Tips
Inspect the O-ring for nicks and proper lubrication before installation. Use OEM-compatible lubricants and OEM clamp hardware for secure fitment. Replace during scheduled preventive maintenance intervals or whenever visible wear appears to prevent leaks and maintain precise temperature control.
Real-World Applications
The Thermo King O-Ring EPDM-154 serves hose fittings, pump interfaces, and refrigeration line service points on reefer trailers and transport refrigeration units. Technicians use this O-ring for routine service and emergency repairs to maintain consistent cargo temperatures across Amarillo, Lubbock, Odessa, and throughout West Texas.
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, contact us for warranty information: contact.
Frequently Asked Questions
Q: Is the Thermo King O-Ring EPDM-154 compatible with Thermo King Precedent and SR series units?
A: Yes. The O-Ring EPDM-154 fits applications that require an AS568-154 EPDM seal and is commonly used in Thermo King service points across Precedent and Smart Reefer SR-4 applications.
Q: What fluids and environments suit EPDM material?
A: EPDM performs well with water, steam, and glycol-based fluids and resists ozone and weathering. Select alternative elastomers when continuous exposure to petroleum-based fuels is expected.
Q: How should technicians store and handle this O-ring?
A: Store in a cool, dark environment away from direct sunlight and petrochemical exposure. Handle with clean hands or gloves and use OEM-approved lubricants at installation for best sealing results.
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 O-Ring EPDM-154, 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 O-Ring EPDM-154 supports leak-free sealing across temperature-controlled assemblies, delivering OEM-grade reliability for Thermo King refrigeration systems in transport refrigeration and reefer trailer applications.
The Thermo King O-Ring EPDM-154 provides a durable, weather-resistant seal designed for service and maintenance of temperature control components. Engineered from EPDM elastomer to resist ozone, steam, and glycol-based fluids, this O-ring helps maintain efficient cooling, reduce downtime, and protect fleet ROI across West Texas operations.
- OEM Material Specification – EPDM elastomer provides long-term resistance to ozone, weathering, and steam for dependable sealing in refrigerated environments.
- AS568-154 Precision – Manufactured to AS568-154 sizing for reliable, repeatable fit in Thermo King service points and hose connections.
- Service Reliability – Maintains seal integrity under thermal cycling to support consistent temperature control and reduced leak-related service events.
- Fleet Uptime – Enables quick replacement and return-to-service during scheduled maintenance or roadside repairs, minimizing downtime across Amarillo to the Permian Basin.
- Compatibility with Glycol Systems – Performs with glycol-based refrigerant related fluids commonly used in Thermo King systems, supporting fuel-efficient cooling strategies.
- Certified Dealership Support – Supplied through West Texas Thermo King with parts verification and installation guidance from certified technicians.
Product Details
| Part Number | 334543 |
| Product Name | O-Ring EPDM-154 |
| Material | EPDM (ethylene propylene diene monomer) |
| Standard Size | AS568-154 (inner diameter ≈ 3.74 in; cross section ≈ 0.103 in / 3/32 in) |
| Typical Hardness | Approximately 70–80 Shore A (typical EPDM service hardness) |
| Compatibility | Service use in Thermo King refrigeration systems requiring AS568-154 EPDM seals |
Efficiency & Sustainability
The Thermo King O-Ring EPDM-154 supports efficient, fuel-conscious refrigeration by preserving seal integrity in coolant and glycol circuits. Use within Smart Reefer SR-4 and other Thermo King platforms safeguards temperature control and contributes to reduced emissions from fewer service interventions. EPDM construction aligns with long-life service strategies favored by fleets operating across West Texas and the Permian Basin.
Installation & Maintenance Tips
Inspect the O-ring for nicks and proper lubrication before installation. Use OEM-compatible lubricants and OEM clamp hardware for secure fitment. Replace during scheduled preventive maintenance intervals or whenever visible wear appears to prevent leaks and maintain precise temperature control.
Real-World Applications
The Thermo King O-Ring EPDM-154 serves hose fittings, pump interfaces, and refrigeration line service points on reefer trailers and transport refrigeration units. Technicians use this O-ring for routine service and emergency repairs to maintain consistent cargo temperatures across Amarillo, Lubbock, Odessa, and throughout West Texas.
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, contact us for warranty information: contact.
Frequently Asked Questions
Q: Is the Thermo King O-Ring EPDM-154 compatible with Thermo King Precedent and SR series units?
A: Yes. The O-Ring EPDM-154 fits applications that require an AS568-154 EPDM seal and is commonly used in Thermo King service points across Precedent and Smart Reefer SR-4 applications.
Q: What fluids and environments suit EPDM material?
A: EPDM performs well with water, steam, and glycol-based fluids and resists ozone and weathering. Select alternative elastomers when continuous exposure to petroleum-based fuels is expected.
Q: How should technicians store and handle this O-ring?
A: Store in a cool, dark environment away from direct sunlight and petrochemical exposure. Handle with clean hands or gloves and use OEM-approved lubricants at installation for best sealing results.
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.