Thermo King Straight Tube-O Fitting 8x8 High R134a 512534

$60.46

Official OEM Thermo King parts catalog entry for the Fitting Straight Tube-O 8x8 R134a High 1/8 NPT, 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 Fitting Straight Tube-O 8x8 R134a High 1/8 NPT delivers OEM-grade reliability for Thermo King refrigeration systems, providing a leak-resistant Tube-O connection with an integrated 1/8" NPT service port for precise charging and diagnostics on the high-pressure side.

This Thermo King-certified fitting supports efficient, dependable temperature control across transport refrigeration applications, ensuring uptime and consistent cooling for reefer trailers and refrigerated trucks operating throughout West Texas and the Permian Basin.

  • OEM Tube-O Seal – Ensures a durable, leak-resistant connection for high-side R134a circuits to protect refrigerant charge and system integrity.
  • #8 × #8 Compatibility – Matches dash -8 hose and fittings for a secure, precision fit in Thermo King 2000-series hose systems.
  • Integrated 1/8" NPT Service Port – Enables convenient charging, pressure checks, and diagnostics without breaking the main refrigerant joint.
  • Simplified Serviceability – Reduces downtime with a standardized service access point for fleet maintenance and on-road troubleshooting.
  • Fleet-Grade Reliability – Engineered to support consistent temperature control under high-load transport refrigeration demands, helping protect cargo and reduce operating risk.

Product Details

Part Number512534
ProductFitting Straight Tube-O 8x8 R134a High 1/8 NPT
TypeStraight female Tube-O fitting (O-ring seal)
Size#8 fitting × #8 hose (dash -8)
Service Port1/8" NPT (charging/diagnostics)
Refrigerant SideR134a high-side application
CompatibilityThermo King 2000-series hose system and compatible Thermo King refrigeration units
MaterialRefer to Thermo King OEM documentation for exact material specification

Efficiency & Sustainability – This Tube-O straight fitting supports efficient refrigerant management and precise service access, reducing unnecessary refrigerant loss during maintenance. Use with modern Thermo King systems, Smart Reefer SR-4 controls, and Diesel Direct Electric configurations to maintain fuel-efficient cooling and CARB Evergreen compliance where applicable.

Installation & Maintenance Tips – Install using Thermo King-recommended torque and OEM hose clamps. Inspect O-ring sealing surfaces and service port threads during scheduled maintenance intervals. Use certified service tools for pressure testing and charging to preserve seal integrity and system performance.

Real-World Applications – Ideal for refrigerated truck and reefer trailer fleets requiring durable high-side hose connections and on-board service access. Commonly used in transport refrigeration systems on Precedent S-610M, S-610DE, and comparable Thermo King units. 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 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, contact us for warranty information or visit the contact page to confirm details with service staff.

Frequently Asked Questions

Q: Is this fitting compatible with Thermo King Precedent series units?
A: Yes. The fitting is designed for Thermo King hose systems and provides a secure Tube-O connection for Precedent-series and similar transport refrigeration units when used with dash -8 hoses.

Q: Can the 1/8" NPT port be used for on-road diagnostics?
A: Yes. The integrated 1/8" NPT service port allows for pressure checks and charging during service without disturbing the primary refrigerant connection.

Q: Does this fitting support R134a refrigerant?
A: Yes. This fitting is specified for high-side use with R134a refrigerant in Thermo King systems.

Q: Where can fleets in West Texas receive installation and service?
A: Installation and certified service for this fitting are available in Amarillo, Lubbock, Odessa, and throughout West Texas through West Texas Thermo King technicians.

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 Fitting Straight Tube-O 8x8 R134a High 1/8 NPT, 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 Fitting Straight Tube-O 8x8 R134a High 1/8 NPT delivers OEM-grade reliability for Thermo King refrigeration systems, providing a leak-resistant Tube-O connection with an integrated 1/8" NPT service port for precise charging and diagnostics on the high-pressure side.

This Thermo King-certified fitting supports efficient, dependable temperature control across transport refrigeration applications, ensuring uptime and consistent cooling for reefer trailers and refrigerated trucks operating throughout West Texas and the Permian Basin.

  • OEM Tube-O Seal – Ensures a durable, leak-resistant connection for high-side R134a circuits to protect refrigerant charge and system integrity.
  • #8 × #8 Compatibility – Matches dash -8 hose and fittings for a secure, precision fit in Thermo King 2000-series hose systems.
  • Integrated 1/8" NPT Service Port – Enables convenient charging, pressure checks, and diagnostics without breaking the main refrigerant joint.
  • Simplified Serviceability – Reduces downtime with a standardized service access point for fleet maintenance and on-road troubleshooting.
  • Fleet-Grade Reliability – Engineered to support consistent temperature control under high-load transport refrigeration demands, helping protect cargo and reduce operating risk.

Product Details

Part Number512534
ProductFitting Straight Tube-O 8x8 R134a High 1/8 NPT
TypeStraight female Tube-O fitting (O-ring seal)
Size#8 fitting × #8 hose (dash -8)
Service Port1/8" NPT (charging/diagnostics)
Refrigerant SideR134a high-side application
CompatibilityThermo King 2000-series hose system and compatible Thermo King refrigeration units
MaterialRefer to Thermo King OEM documentation for exact material specification

Efficiency & Sustainability – This Tube-O straight fitting supports efficient refrigerant management and precise service access, reducing unnecessary refrigerant loss during maintenance. Use with modern Thermo King systems, Smart Reefer SR-4 controls, and Diesel Direct Electric configurations to maintain fuel-efficient cooling and CARB Evergreen compliance where applicable.

Installation & Maintenance Tips – Install using Thermo King-recommended torque and OEM hose clamps. Inspect O-ring sealing surfaces and service port threads during scheduled maintenance intervals. Use certified service tools for pressure testing and charging to preserve seal integrity and system performance.

Real-World Applications – Ideal for refrigerated truck and reefer trailer fleets requiring durable high-side hose connections and on-board service access. Commonly used in transport refrigeration systems on Precedent S-610M, S-610DE, and comparable Thermo King units. 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 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, contact us for warranty information or visit the contact page to confirm details with service staff.

Frequently Asked Questions

Q: Is this fitting compatible with Thermo King Precedent series units?
A: Yes. The fitting is designed for Thermo King hose systems and provides a secure Tube-O connection for Precedent-series and similar transport refrigeration units when used with dash -8 hoses.

Q: Can the 1/8" NPT port be used for on-road diagnostics?
A: Yes. The integrated 1/8" NPT service port allows for pressure checks and charging during service without disturbing the primary refrigerant connection.

Q: Does this fitting support R134a refrigerant?
A: Yes. This fitting is specified for high-side use with R134a refrigerant in Thermo King systems.

Q: Where can fleets in West Texas receive installation and service?
A: Installation and certified service for this fitting are available in Amarillo, Lubbock, Odessa, and throughout West Texas through West Texas Thermo King technicians.

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.