Thermo King O-Ring Seal for Fuel Filter & Hose 9.25 ID 336978

$2.96

Official OEM Thermo King parts catalog entry for the Thermo King O-Ring 336978 9.25 ID, 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 336978 9.25 ID supplies OEM-grade sealing for Thermo King refrigeration systems, supporting reliable temperature control and leak-free operation across transport refrigeration applications.

Product Overview

The Thermo King O-Ring 336978 9.25 ID delivers a direct-fit sealing solution for service and maintenance of Thermo King components. Engineered to meet Thermo King installation standards, this O-ring helps protect refrigerant and fluid circuits that keep reefer trailers and refrigerated trucks running with consistent temperature control and fuel-efficient cooling.

Key Features & Customer Benefits

  • OEM Designation – Provides assurance of Thermo King-specified fitment and part traceability for professional service records.
  • Leak Prevention – Supports reliable sealing in fuel filter and hose applications to maintain system integrity and avoid downtime.
  • Service-Ready – Enables fast replacement during scheduled maintenance to reduce unit out-of-service time and protect freight quality.
  • Fleet Uptime Focus – Contributes to consistent temperature control across reefer trailer operations for reduced spoilage and improved ROI.
  • Certified Dealership Support – Backed by West Texas Thermo King parts expertise for correct installation and ongoing maintenance guidance.

Product Details

Thermo King lists part number 336978 as an OEM O-ring used in fuel filter and hose sealing applications. Specific technical dimensions, material compounds, and hardness ratings are available through authorized Thermo King documentation. For precise material compatibility and cross-reference information, contact West Texas Thermo King or consult official Thermo King parts literature before installation.

Efficiency & Sustainability

This Thermo King O-ring supports efficient refrigeration unit operation by maintaining leak-free fluid and refrigerant circuits, which helps preserve fuel-efficient cooling and consistent temperature control across transport refrigeration fleets. Parts installed to OEM specification contribute to regulatory compliance and reduced emissions risk when servicing Smart Reefer and other Thermo King platforms.

Installation & Maintenance Tips

Install the Thermo King O-Ring 336978 9.25 ID using OEM-recommended tools and clamps. Inspect sealing surfaces for wear or contamination, replace O-rings during routine service intervals, and follow torque and assembly guidance from Thermo King service manuals to ensure long-term reliability.

Real-World Applications

This O-ring serves maintenance and repair needs for Thermo King refrigeration units on refrigerated trailers and trucks, including common service points like filter housings and hose connections. Ideal for fleets operating across Amarillo, Lubbock, Odessa, West Texas, and the Permian Basin seeking dependable temperature control and reduced downtime.

Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.

View all Thermo King Parts

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 Thermo King O-Ring 336978 9.25 ID compatible with Thermo King refrigeration units?
A: Yes. This O-ring holds an OEM Thermo King part number and supports standard service applications for Thermo King refrigeration systems when installed per Thermo King guidelines.

Q: What material is the O-ring made from?
A: Thermo King specifies materials based on application. For exact compound and hardness, request the part specification from West Texas Thermo King or an authorized Thermo King parts catalog entry prior to installation.

Q: How should fleets manage O-ring replacement to minimize downtime?
A: Include O-ring inspection in scheduled maintenance intervals, replace during filter or hose service, and use certified technicians to ensure correct seating and sealing for uninterrupted transport refrigeration performance.

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 O-Ring 336978 9.25 ID, 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 336978 9.25 ID supplies OEM-grade sealing for Thermo King refrigeration systems, supporting reliable temperature control and leak-free operation across transport refrigeration applications.

Product Overview

The Thermo King O-Ring 336978 9.25 ID delivers a direct-fit sealing solution for service and maintenance of Thermo King components. Engineered to meet Thermo King installation standards, this O-ring helps protect refrigerant and fluid circuits that keep reefer trailers and refrigerated trucks running with consistent temperature control and fuel-efficient cooling.

Key Features & Customer Benefits

  • OEM Designation – Provides assurance of Thermo King-specified fitment and part traceability for professional service records.
  • Leak Prevention – Supports reliable sealing in fuel filter and hose applications to maintain system integrity and avoid downtime.
  • Service-Ready – Enables fast replacement during scheduled maintenance to reduce unit out-of-service time and protect freight quality.
  • Fleet Uptime Focus – Contributes to consistent temperature control across reefer trailer operations for reduced spoilage and improved ROI.
  • Certified Dealership Support – Backed by West Texas Thermo King parts expertise for correct installation and ongoing maintenance guidance.

Product Details

Thermo King lists part number 336978 as an OEM O-ring used in fuel filter and hose sealing applications. Specific technical dimensions, material compounds, and hardness ratings are available through authorized Thermo King documentation. For precise material compatibility and cross-reference information, contact West Texas Thermo King or consult official Thermo King parts literature before installation.

Efficiency & Sustainability

This Thermo King O-ring supports efficient refrigeration unit operation by maintaining leak-free fluid and refrigerant circuits, which helps preserve fuel-efficient cooling and consistent temperature control across transport refrigeration fleets. Parts installed to OEM specification contribute to regulatory compliance and reduced emissions risk when servicing Smart Reefer and other Thermo King platforms.

Installation & Maintenance Tips

Install the Thermo King O-Ring 336978 9.25 ID using OEM-recommended tools and clamps. Inspect sealing surfaces for wear or contamination, replace O-rings during routine service intervals, and follow torque and assembly guidance from Thermo King service manuals to ensure long-term reliability.

Real-World Applications

This O-ring serves maintenance and repair needs for Thermo King refrigeration units on refrigerated trailers and trucks, including common service points like filter housings and hose connections. Ideal for fleets operating across Amarillo, Lubbock, Odessa, West Texas, and the Permian Basin seeking dependable temperature control and reduced downtime.

Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.

View all Thermo King Parts

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 Thermo King O-Ring 336978 9.25 ID compatible with Thermo King refrigeration units?
A: Yes. This O-ring holds an OEM Thermo King part number and supports standard service applications for Thermo King refrigeration systems when installed per Thermo King guidelines.

Q: What material is the O-ring made from?
A: Thermo King specifies materials based on application. For exact compound and hardness, request the part specification from West Texas Thermo King or an authorized Thermo King parts catalog entry prior to installation.

Q: How should fleets manage O-ring replacement to minimize downtime?
A: Include O-ring inspection in scheduled maintenance intervals, replace during filter or hose service, and use certified technicians to ensure correct seating and sealing for uninterrupted transport refrigeration performance.

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.