Traulsen 337-60406-02 & 334-60405-02 Temperature Probe Kit, Coil & Cabinet, Replacement with 12 Month Warranty & USA Business

Restore dependable temperature monitoring in compatible Traulsen commercial refrigeration equipment with the Wholesale Sensors Replacement Traulsen Blue Coil 337-60406-02 and Green Cabinet 334-60405-02 Temperature Probe Set, backed by a strong 12-Month Warranty and responsive USA-based product support. This convenient two-probe set provides replacements for two important temperature-sensing positions in compatible Traulsen refrigerators and freezers: the evaporator coil temperature sensor and the cabinet air temperature sensor.

These sensors perform different jobs and are color coded to help identify their intended locations. The 337-60406-02 blue probe is a coil temperature sensor with a 74-inch lead. Traulsen parts documentation identifies it specifically as the blue coil temperature sensor. Parts Town further identifies 337-60406-02 as an obsolete number that has been superseded by 334-60406-02, making these the primary numbers to check when replacing the blue coil probe.

The second sensor is Traulsen 334-60405-02, identified as a green cabinet air temperature sensor with a 74-inch lead. Its job is to sense the temperature inside the refrigerated cabinet. Parts Town identifies previous or related numbers including 334-604005-02, 337-60069-00, 337-60069-02, 337-60405-02, and 334-604050-02. Parts Town separately confirms that obsolete 334-604050-02 was replaced by 334-60405-02.

This Wholesale Sensors set is engineered as a perfect OEM-style replacement designed to meet or exceed OEM specifications for compatible applications. Combining the blue coil and green cabinet probes in one set can be especially convenient when servicing refrigeration equipment that uses both sensor positions. However, the two probes perform separate functions and should always be installed in their correct locations.

The green 334-60405-02 cabinet sensor monitors the air temperature inside the refrigeration compartment. The refrigeration control uses this temperature information as part of its cooling strategy. Accurate cabinet temperature feedback helps the system determine whether the refrigerated compartment is maintaining the required operating conditions. Parts Town specifically states that 334-60405-02 is used to sense temperature within the refrigeration unit.

The blue 337-60406-02 coil sensor monitors temperature at the coil or evaporator sensing position. Coil temperature information can be important for refrigeration and defrost operation because the controller needs to understand conditions at the evaporator, not simply the air temperature inside the cabinet.

This distinction is important during troubleshooting. A cabinet sensor problem and a coil sensor problem can produce different symptoms, even though both may eventually affect refrigeration performance.

Compatibility covers numerous Traulsen commercial refrigeration families. Verified applications for both probes include G100XX, G110XX, G12000, G120XX, G200XX, G210XX, G22013, G220XX, G300XX, G310XX, G313XX, and G320XX equipment. Both probes are also documented in MC1G and select Traulsen R & A Series equipment.

Additional applications include select models such as RD132W-ZCF01, RD232W-ZCF01, RE132EVCF04, RE232E-ZCF01, RET132EUT, RET132EWUT, RET232EUT, RET232LUT, RET232NUT, RET232NUT-FHS, RET232NUT-HHS, RH132W-ZCF04, RH232W-ZCF03, and RL232W-ZCF02.

The green cabinet probe is documented in additional applications including AHF232WP-HHS, AHT132WUT-HHS, ALT132NUT-HHS, G10000, G10001, G10010, G11000, G12001, G12010, G143XX, G24314P, RHT126WUT-FHG, TU044HT, TU044LT, TU072HT, TU072LT, and TU100HT.

Traulsen documentation also confirms the use of the current 334-60405-02 cabinet sensor and 334-60406-02 coil sensor together in applicable G-Series configurations, further supporting their separate cabinet and coil sensing functions.

Because Traulsen has manufactured numerous equipment revisions over many years, compatibility should always be verified using the complete model number, serial number, original sensor part number, lead color, connector configuration, and sensing location. Do not order based only on the appearance of the refrigerator or freezer.

Both probes use 74-inch leads in the applications documented here. The green lead identifies the cabinet temperature sensor, while the blue lead identifies the coil temperature sensor. This color coding can help service technicians maintain the correct sensor arrangement when replacing components.

When a temperature probe begins to fail, the refrigeration control may receive inaccurate, intermittent, open, or otherwise unreliable temperature information. Depending on which sensor is affected, possible symptoms can include incorrect cabinet temperature readings, temperatures that are too warm or cold, unusual compressor cycling, improper evaporator monitoring, abnormal defrost operation, frost accumulation, or inconsistent refrigeration performance.

These symptoms do not automatically prove that one or both temperature sensors are defective. Commercial refrigeration systems depend on several components working together. Similar problems can be caused by evaporator fan failure, restricted airflow, dirty condenser coils, damaged door gaskets, defrost component problems, wiring faults, controller problems, expansion valve issues, refrigerant problems, compressor faults, or other refrigeration-system conditions.

Before replacement, inspect the original sensors and wiring. Look for cut or pinched wires, damaged insulation, loose connectors, corrosion, moisture intrusion, broken conductors, damaged probe ends, or terminals that do not make reliable contact.

When appropriate service specifications are available, the probes can also be checked electrically. Temperature sensors should provide a predictable electrical response as temperature changes. An open circuit, short circuit, unstable reading, or measurement outside the specified temperature-to-resistance range may indicate a defective sensor.

Installation should begin by disconnecting electrical power from the refrigeration equipment. Commercial refrigeration equipment contains potentially hazardous electrical circuits and moving components. Qualified refrigeration service personnel should perform repairs when required.

Before removing the original sensors, identify which probe is the blue coil sensor and which is the green cabinet sensor. Take photos of their mounting positions, connectors, and wire routing. Do not interchange the probes simply because their connectors appear similar.

Install the replacement 337-60406-02 blue probe in the original coil temperature sensing position and the 334-60405-02 green probe in the original cabinet air temperature sensing position. Secure each sensor properly and route its 74-inch lead according to the original equipment configuration.

Correct placement matters. A functional cabinet probe installed in the wrong location can report a temperature that does not accurately represent cabinet conditions. Likewise, incorrect positioning of the coil probe can interfere with accurate evaporator temperature monitoring.

After installation, reinstall all guards, panels, and covers before restoring electrical power. Allow the refrigeration system enough time to stabilize and complete normal cooling and defrost cycles. Monitor cabinet temperature and evaporator performance to confirm normal operation.

Commercial refrigerators and freezers do not use automotive OBD-II diagnostic trouble codes, so automotive temperature sensor codes do not apply to these Traulsen probes. Equipment-specific alarms or diagnostic indications should be interpreted using the service documentation for the exact Traulsen model and controller.

Each Wholesale Sensors replacement probe is built for demanding commercial refrigeration environments and is rigorously tested for temperature response, electrical continuity, sensing consistency, connection integrity, and dependable operation.

Wholesale Sensors specializes in aftermarket sensing components for commercial refrigeration, restaurant equipment, HVAC systems, home appliances, pool and spa equipment, automotive applications, RV equipment, and industrial systems.

Every Wholesale Sensors Replacement Traulsen Blue Coil 337-60406-02 and Green Cabinet 334-60405-02 Temperature Probe Set is backed by a strong 12-Month Warranty and responsive USA-based product support.

Before ordering, verify that your equipment requires both the 337-60406-02 or current 334-60406-02 blue coil probe and the 334-60405-02 green cabinet probe. With confirmed compatibility, this two-sensor set provides application-specific replacements, clear color identification, 74-inch leads, rigorously tested sensing performance, and a practical solution for restoring dependable coil and cabinet temperature monitoring in compatible Traulsen commercial refrigeration equipment.