Thermo King Spring Lock Washer for Transport Refrigeration 551511

$2.39

Official OEM Thermo King parts catalog entry for the Thermo King Washer Springlock 551511, 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 Washer Springlock 551511 delivers OEM-grade fastening reliability for Thermo King refrigeration system assemblies, ensuring secure, vibration-resistant connections in temperature-controlled fleets. This spring lock washer supports uptime and dependable temperature control across reefer trailer and truck applications.

West Texas Thermo King, a certified Thermo King dealership, endorses this genuine Thermo King fastener for fleets that prioritize precision, longevity, and reduced downtime in the Permian Basin and throughout West Texas.

Key Features & Customer Benefits

  • OEM Fit – Ensures accurate seating and compatibility with Thermo King hardware to maintain factory assembly integrity.
  • Vibration Resistance – Spring lock design secures bolts and nuts against loosening in mobile transport refrigeration environments.
  • Reliability Under Load – Supports sustained clamp tension in compressor mounts and structural brackets for consistent temperature performance.
  • Service-Ready – Supplied as a single, ready-to-install component for quick replacement during scheduled maintenance.
  • Fleet Uptime Focus – Helps minimize unplanned stops by preserving fastener torque and preventing leak paths that affect cooling efficiency.

Product Details

The Thermo King Washer Springlock 551511 is an OEM spring lock (split) washer specified for use in Thermo King transport refrigeration assemblies. Public catalogs and certified dealers list the part as a spring lock washer intended to retain bolt and nut tension in vibrating service conditions typical of reefer trailers, refrigerated trucks, and stationary refrigeration units. Exact dimensions and material specifications are maintained in Thermo King engineering documentation and are available through certified Thermo King service channels for precise fit verification.

Efficiency & Sustainability

Correct fastening contributes to efficient, fuel-conscious cooling by preserving sealing integrity and reducing compressor load from air or refrigerant ingress. This fastener supports maintenance practices that align with Thermo King Smart Reefer SR-4 service protocols and long-term fleet efficiency goals. Proper component care helps fleets meet regional environmental standards such as CARB Evergreen where applicable.

Installation & Maintenance Tips

Install using specified Thermo King bolts and follow torque values in the official service manual for each unit. Inspect spring lock washers during scheduled maintenance intervals and replace when showing signs of wear, corrosion, or loss of spring tension. Use OEM fasteners and documented procedures to maintain warranty and optimal temperature-control performance.

Real-World Applications

The Thermo King Washer Springlock 551511 is ideal for securing fasteners on reefer trailers, refrigerated truck mounts, compressor brackets, and other transport refrigeration assemblies that encounter vibration and thermal cycling. Technicians employ this washer to preserve clamp preload in Precedent-series and Diesel Direct Electric assemblies as part of routine component service. 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, please contact us for warranty information at https://www.trailerservicesofwesttexas.com/contact or contact the service department for confirmation.

Frequently Asked Questions

Q: Is the Thermo King Washer Springlock 551511 compatible with Thermo King Precedent units?
A: Yes. As an OEM spring lock washer, 551511 is intended for use in Thermo King assemblies including Precedent-series applications when matched to the correct fastener and service specification.

Q: How does this washer improve fleet performance?
A: The spring lock action preserves bolt tension under vibration, reducing the risk of loose joints and leaks that degrade temperature control and increase operating cost.

Q: Where can fleets source this part in West Texas?
A: West Texas Thermo King stocks and supplies genuine Thermo King parts for Amarillo, Lubbock, Odessa, and the Permian Basin, and can verify fitment and availability on request.

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 Washer Springlock 551511, 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 Washer Springlock 551511 delivers OEM-grade fastening reliability for Thermo King refrigeration system assemblies, ensuring secure, vibration-resistant connections in temperature-controlled fleets. This spring lock washer supports uptime and dependable temperature control across reefer trailer and truck applications.

West Texas Thermo King, a certified Thermo King dealership, endorses this genuine Thermo King fastener for fleets that prioritize precision, longevity, and reduced downtime in the Permian Basin and throughout West Texas.

Key Features & Customer Benefits

  • OEM Fit – Ensures accurate seating and compatibility with Thermo King hardware to maintain factory assembly integrity.
  • Vibration Resistance – Spring lock design secures bolts and nuts against loosening in mobile transport refrigeration environments.
  • Reliability Under Load – Supports sustained clamp tension in compressor mounts and structural brackets for consistent temperature performance.
  • Service-Ready – Supplied as a single, ready-to-install component for quick replacement during scheduled maintenance.
  • Fleet Uptime Focus – Helps minimize unplanned stops by preserving fastener torque and preventing leak paths that affect cooling efficiency.

Product Details

The Thermo King Washer Springlock 551511 is an OEM spring lock (split) washer specified for use in Thermo King transport refrigeration assemblies. Public catalogs and certified dealers list the part as a spring lock washer intended to retain bolt and nut tension in vibrating service conditions typical of reefer trailers, refrigerated trucks, and stationary refrigeration units. Exact dimensions and material specifications are maintained in Thermo King engineering documentation and are available through certified Thermo King service channels for precise fit verification.

Efficiency & Sustainability

Correct fastening contributes to efficient, fuel-conscious cooling by preserving sealing integrity and reducing compressor load from air or refrigerant ingress. This fastener supports maintenance practices that align with Thermo King Smart Reefer SR-4 service protocols and long-term fleet efficiency goals. Proper component care helps fleets meet regional environmental standards such as CARB Evergreen where applicable.

Installation & Maintenance Tips

Install using specified Thermo King bolts and follow torque values in the official service manual for each unit. Inspect spring lock washers during scheduled maintenance intervals and replace when showing signs of wear, corrosion, or loss of spring tension. Use OEM fasteners and documented procedures to maintain warranty and optimal temperature-control performance.

Real-World Applications

The Thermo King Washer Springlock 551511 is ideal for securing fasteners on reefer trailers, refrigerated truck mounts, compressor brackets, and other transport refrigeration assemblies that encounter vibration and thermal cycling. Technicians employ this washer to preserve clamp preload in Precedent-series and Diesel Direct Electric assemblies as part of routine component service. 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, please contact us for warranty information at https://www.trailerservicesofwesttexas.com/contact or contact the service department for confirmation.

Frequently Asked Questions

Q: Is the Thermo King Washer Springlock 551511 compatible with Thermo King Precedent units?
A: Yes. As an OEM spring lock washer, 551511 is intended for use in Thermo King assemblies including Precedent-series applications when matched to the correct fastener and service specification.

Q: How does this washer improve fleet performance?
A: The spring lock action preserves bolt tension under vibration, reducing the risk of loose joints and leaks that degrade temperature control and increase operating cost.

Q: Where can fleets source this part in West Texas?
A: West Texas Thermo King stocks and supplies genuine Thermo King parts for Amarillo, Lubbock, Odessa, and the Permian Basin, and can verify fitment and availability on request.

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.