Thermo King Transport Refrigeration Fuel Filter O-Ring Kit 300325
Official OEM Thermo King parts catalog entry for the O-Ring Kit Fuel Filter 300325, 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 300325 O-Ring Kit Fuel Filter supports Thermo King refrigeration system sealing integrity across temperature-controlled fleets. This OEM-aligned service kit ensures reliable sealing at the fuel filter assembly to protect fuel delivery, maintain temperature control, and preserve fuel-efficient cooling on reefer trailers and transport refrigeration units.
Key Features & Customer Benefits
- OEM-Aligned Materials – Uses thermally stable elastomers specified for transport refrigeration to resist fuel exposure and temperature cycles, extending service intervals.
- Complete Seal Set – Supplies the O-rings and sealing components required for correct fuel filter installation, reducing leak risk and downtime.
- Precision Fit Guidance – Matches Thermo King fuel filter assembly geometry when installed per unit specifications, supporting consistent, leak-free operation.
- Fleet Uptime Focus – Minimizes maintenance turnaround by providing the intended sealing parts during scheduled service, improving ROI for fleet operators.
- Certified Dealership Support – Backed by West Texas Thermo King technical validation and parts availability across Amarillo, Lubbock, Odessa, and the Permian Basin.
Product Details
Part Number: 300325 — O-Ring Kit Fuel Filter. This service kit contains OEM-grade O-rings and sealing components designed for the fuel filter assembly on Thermo King transport refrigeration units. Compatibility is application-specific; confirm fit with the unit serial number or parts manual prior to installation. The kit supports service best practices for Thermo King diesel and hybrid refrigeration systems and aligns with parts used on popular Thermo King platforms.
Efficiency & Sustainability
This O-ring kit supports fuel system integrity and precise fuel delivery, contributing to fuel-efficient cooling and consistent temperature control across refrigerated loads. When used as part of scheduled maintenance on Smart Reefer SR-4, Precedent S-610M, S-610DE, or Diesel Direct Electric systems, the correct sealing components help reduce leaks, limit fuel waste, and support compliance with CARB Evergreen requirements where applicable.
Installation & Maintenance Tips
Replace O-rings during fuel filter service intervals and always use new seals rather than reusing old material. Lightly lubricate new O-rings with clean engine oil for correct seating, follow Thermo King filter installation guidance, and hand-tighten filter elements to specified hand-fit engagement. Inspect seals during routine service and verify no fuel odor or seepage after initial run-in.
Real-World Applications
This kit serves refrigerated trucks, reefer trailers, and transport refrigeration units operating across regional and long-haul routes. It fits service workflows for fleets that prioritize uptime, precision temperature control, and dependable fuel system operation in harsh West Texas conditions.
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, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is this O-Ring Kit compatible with Thermo King Precedent units?
A: Yes, the kit supports fuel filter sealing on many Thermo King Precedent-series and similar units. Confirm exact fit by checking the unit serial and parts manual or contacting technical support.
Q: How should the O-rings be installed?
A: Install new O-rings lubricated with clean engine oil, ensure correct seating on the filter head or bowl as specified by the unit guide, and hand-tighten filter elements to prevent distortion of the seal.
Q: How often should seals be replaced?
A: Replace O-rings with each fuel filter service or when any evidence of seepage or wear appears during scheduled maintenance to maintain reliability and efficiency.
Q: Does this kit improve fleet uptime?
A: Yes, using the correct O-ring kit during routine service reduces leak risk and unplanned downtime, supporting consistent temperature control and operational efficiency.
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 O-Ring Kit Fuel Filter 300325, 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 300325 O-Ring Kit Fuel Filter supports Thermo King refrigeration system sealing integrity across temperature-controlled fleets. This OEM-aligned service kit ensures reliable sealing at the fuel filter assembly to protect fuel delivery, maintain temperature control, and preserve fuel-efficient cooling on reefer trailers and transport refrigeration units.
Key Features & Customer Benefits
- OEM-Aligned Materials – Uses thermally stable elastomers specified for transport refrigeration to resist fuel exposure and temperature cycles, extending service intervals.
- Complete Seal Set – Supplies the O-rings and sealing components required for correct fuel filter installation, reducing leak risk and downtime.
- Precision Fit Guidance – Matches Thermo King fuel filter assembly geometry when installed per unit specifications, supporting consistent, leak-free operation.
- Fleet Uptime Focus – Minimizes maintenance turnaround by providing the intended sealing parts during scheduled service, improving ROI for fleet operators.
- Certified Dealership Support – Backed by West Texas Thermo King technical validation and parts availability across Amarillo, Lubbock, Odessa, and the Permian Basin.
Product Details
Part Number: 300325 — O-Ring Kit Fuel Filter. This service kit contains OEM-grade O-rings and sealing components designed for the fuel filter assembly on Thermo King transport refrigeration units. Compatibility is application-specific; confirm fit with the unit serial number or parts manual prior to installation. The kit supports service best practices for Thermo King diesel and hybrid refrigeration systems and aligns with parts used on popular Thermo King platforms.
Efficiency & Sustainability
This O-ring kit supports fuel system integrity and precise fuel delivery, contributing to fuel-efficient cooling and consistent temperature control across refrigerated loads. When used as part of scheduled maintenance on Smart Reefer SR-4, Precedent S-610M, S-610DE, or Diesel Direct Electric systems, the correct sealing components help reduce leaks, limit fuel waste, and support compliance with CARB Evergreen requirements where applicable.
Installation & Maintenance Tips
Replace O-rings during fuel filter service intervals and always use new seals rather than reusing old material. Lightly lubricate new O-rings with clean engine oil for correct seating, follow Thermo King filter installation guidance, and hand-tighten filter elements to specified hand-fit engagement. Inspect seals during routine service and verify no fuel odor or seepage after initial run-in.
Real-World Applications
This kit serves refrigerated trucks, reefer trailers, and transport refrigeration units operating across regional and long-haul routes. It fits service workflows for fleets that prioritize uptime, precision temperature control, and dependable fuel system operation in harsh West Texas conditions.
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, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is this O-Ring Kit compatible with Thermo King Precedent units?
A: Yes, the kit supports fuel filter sealing on many Thermo King Precedent-series and similar units. Confirm exact fit by checking the unit serial and parts manual or contacting technical support.
Q: How should the O-rings be installed?
A: Install new O-rings lubricated with clean engine oil, ensure correct seating on the filter head or bowl as specified by the unit guide, and hand-tighten filter elements to prevent distortion of the seal.
Q: How often should seals be replaced?
A: Replace O-rings with each fuel filter service or when any evidence of seepage or wear appears during scheduled maintenance to maintain reliability and efficiency.
Q: Does this kit improve fleet uptime?
A: Yes, using the correct O-ring kit during routine service reduces leak risk and unplanned downtime, supporting consistent temperature control and operational efficiency.
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.