GUZIKO Humidity Sensor Replacement 55111389AF — OE-fit direct replacement for Chrysler, Dodge, Jeep, Ram

GUZIKO’s humidity sensor (replacement for part 55111389AF) measures cabin humidity and temperature so your vehicle’s climate system can maintain clearer windows and more stable interior comfort.

This direct-replacement humidity sensor is designed for a wide range of FCA vehicles — including Chrysler, Dodge, Jeep, Ram and Fiat models — and sends reliable temperature and humidity data to the vehicle’s ECU for automatic climate adjustment. Built from durable components, the GUZIKO sensor matches OE specifications so it plugs into existing wiring and mounting points without modifications. Before purchase, confirm compatibility with your exact model year and trim to ensure a seamless swap.

How does this sensor affect my car’s climate performance?

The sensor reports both ambient humidity and temperature to the climate control system so the ECU can balance blower speed, A/C engagement and recirculation settings. That helps reduce window fogging and shortens the time the HVAC system needs to reach a stable cabin environment. It does not control climate directly but provides the data the system relies on.

• Transmits humidity and temperature signals to the vehicle ECU
• Enables automatic adjustment of A/C and blower settings
• Helps reduce window condensation during humid or cold conditions

Which vehicles and part numbers does this replace?

GUZIKO’s unit is a direct replacement for part number 55111389AF and fits many FCA platforms. It’s intended for specific model years — double-check fitment against your VIN or service manual for accuracy. The sensor is engineered to match the original connector and mounting style for those applications.

• Chrysler 200 (2014–2019), Chrysler 300 (2015–2017)
• Chrysler Pacifica (2017–2018), Dodge Dart (2014–2016)
• Dodge Journey/Challenger (2014–2018), Durango (2016–2018)
• Jeep Renegade (2015–2018), Cherokee (2014–2019), Grand Cherokee (2016–2018)
• Dodge Ram 1500 (2014–2019), Fiat 500 (2014–2016)

What should I expect when installing the GUZIKO humidity sensor?

Installation is typically straightforward: unplug the old sensor, remove mounting fasteners if present, install the GUZIKO unit and reconnect the electrical plug. No special programming is usually required because the sensor follows OE electrical signaling, but verify that connectors align and clip securely. If you’re not comfortable working around dash panels or HVAC components, a professional installation is recommended.

• Plug-and-play connector designed to match OE wiring
• No calibration needed in most vehicles — ECU reads new sensor automatically
• Installation may require minor trim removal depending on vehicle model

What are the material and reliability highlights?

GUZIKO builds the sensor with durable materials intended for long service in the vehicle cabin environment, resisting moisture and temperature cycles. The housing and electrical contacts are engineered to meet automotive operating standards, offering consistent signal delivery over time. As with any replacement part, ensure proper handling and secure mounting to avoid damage during installation.

• Sturdy housing and corrosion-resistant electrical contacts
• Designed to meet OEM form, fit and function
• Manufactured for long-term cabin environment exposure

Who is this for? The GUZIKO humidity sensor is aimed at owners and technicians of compatible Chrysler, Dodge, Jeep, Ram and Fiat vehicles who need a reliable direct replacement for part 55111389AF. It’s appropriate for drivers experiencing inconsistent cabin climate behavior, recurring window fogging, or for routine replacement during HVAC diagnostics. If you want an OE-style sensor that integrates with your vehicle’s existing climate control electronics and mounting points, this GUZIKO unit provides a cost-effective, durable option. Always verify compatibility with your vehicle’s year and model before ordering.