1. Cadillac AC & Heater Controls For Sale
  2. sku: 3284861702205761
  3. AC DELCO GM 21KC45J

AC DELCO GENUINE GM 21KC45J Ambient Sensor

fits model: Cts. make: Cadillac. year: 2014–2018.

21kc45j Ac Delco Genuine Gm Ambient Temp Sensor Fits 2005-2007 2014-2018 Cadillac Cts

( Brand: Ac Delco Genuine Gm ), ( Manufacturer Part Number: 21KC45J ), ( Part Type: Sensor ), ( Part Details: Genuine Gm ), ( Important Note: W/o Bracket ), ( Fit Years: 2006 2005 2007 2014 2015 2016 2017 2018 ), ( Cs-sku: 400 )

Review AC DELCO GENUINE GM Ambient Temp Sensor 2005 2007 Cadillac fits CTS 2014–2018

The AC Delco GM 21kc45j Ambient Air Temperature Sensor is a crucial component in the climate control system of certain Cadillac CTS models produced between 2005 and 2007 and 2014 to 2018. This temperature sensor is designed to measure the outside air temperature and provide the necessary information to the vehicle's climate control system for optimal heating and cooling performance.

This sensor is manufactured by AC Delco, a reputable and trusted automotive parts brand, ensuring high-quality and reliability. It is specifically engineered to fit and function effectively in the Cadillac CTS models mentioned above. The sensor housing is made of durable materials to withstand the harsh conditions of the automotive environment.

The 21kc45j Ambient Air Temperature Sensor uses a thermistor element to measure temperature changes in the air. The thermistor is a temperature-sensitive resistor that changes resistance based on temperature. The sensor converts these resistance changes into electrical signals, which are then transmitted to the vehicle's climate control module for processing.

This sensor is essential for maintaining the desired interior temperature in your Cadillac CTS. If the sensor fails or malfunctions, the climate control system may not be able to accurately adjust the temperature, leading to discomfort and potential damage to the climate control components. Replacing the faulty sensor with a new AC Delco GM 21kc45j Ambient Air Temperature Sensor will help restore proper climate control functionality in your vehicle.

Installing the new sensor is a relatively straightforward process for most DIY enthusiasts. However, if you are not confident in your ability to perform the installation, it is recommended that you consult a professional technician to ensure the job is done correctly.

In conclusion, the AC Delco GM 21kc45j Ambient Air Temperature Sensor is an essential component in the climate control system of certain Cadillac CTS models. Its ability to accurately measure outside air temperature and transmit that information to the climate control module is crucial for maintaining a comfortable interior temperature. This high-quality sensor, manufactured by AC Delco, is designed specifically for the Cadillac CTS models mentioned above and is an excellent choice for those seeking reliable climate control performance.

Pros and Cons of buying a AC Delco GM 21KC45J Ambient Sensor for 2005-2007 and 2014-2018 Cadillac CTS

Pros:

1. OEM Quality: This sensor is a factory original part manufactured by GM, ensuring a perfect fit and function in your Cadillac CTS.

2. Improved Performance: A faulty ambient temperature sensor can cause inaccurate readings, affecting your vehicle's heating, cooling, and fuel efficiency. Replacing it with a new one like the AC Delco GM 21KC45J can restore optimal performance.

3. Long-lasting: AC Delco is known for manufacturing durable auto parts. This ambient sensor is no exception, providing a long service life to save you from frequent replacements.

4. Easy Installation: The sensor is relatively easy to install, making it a DIY-friendly option for those who prefer working on their vehicles.

5. Cost-effective: Compared to buying from a dealership, purchasing from an aftermarket supplier like AC Delco can save you a significant amount of money.

Cons:

1. Limited Availability: Since this part is an OEM component, it may not be readily available in local auto parts stores. You may need to order it online from reputable suppliers.

2. Potential Shipping Delays: Depending on the supplier's inventory and shipping times, it might take several days to receive the sensor.

Conclusion:

The AC Delco GM 21KC45J ambient sensor is a reliable and cost-effective solution for maintaining optimal performance in your 2005-2007 and 2014-2018 Cadillac CTS. Despite the potential for limited availability and shipping delays, the benefits of OEM quality, improved performance, long-lasting durability, easy installation, and cost savings make this an excellent choice for your Cadillac's heating, cooling, and fuel efficiency needs.

Recommendation:

If you are looking for a high-quality, long-lasting, and cost-effective ambient temperature sensor for your Cadillac CTS, the AC Delco GM 21KC45J is a strong recommendation. Consider ordering it from a reputable online supplier to ensure its availability and timely delivery.

Details:

2005 - 2007, 2014 - 2018 CadillAc CTS.

part #: 21kc45j price

  • $19.41

specifications cahecon:

  • for models: Cts
  • for makes: Cadillac
  • for years: 2014-2018
  • brand: Ac Delco Genuine Gm
  • mpn: 21kc45j
  • part type: Sensor
  • part details: Genuine Gm
  • important note: W/o Bracket
  • fit years: 2006 2005 2007 2014 2015 2016 2017 2018
  • cs-sku: 400

general cahecon:

  • condition: New
  • Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units

seller cahecon:

  • rating: 95.9%
  • # reviews: 59618
  • city: Plainville, MassAchusetts

shipping cahecon:

  • transit: 4-7 Days
  • class: Standard
  • type: Fixed
  • cost: $0.00
  • service: FedEx Ground or FedEx Home Delivery
  • carrier: FedEx

returns cahecon:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

payments cahecon:

  • wallet: Google-pay
  • credit card: Visa
  • other

offer cahecon:

  • sold: 0
  • quantity: 1
  • started: May 8, 2025
  • options: Ship-to-home
  • availability: In Stock
for models: cts, for makes: cadillac, for years: 2014-2018, part type: sensor, part details: genuine gm, important note: w/o bracket, fit years: 2006 2005 2007 2014 2015 2016 2017 2018, cs-sku: 400,
category: auto parts > car truck parts accessories > air conditioning heating > hvac controls control units, sku: 3284861702205761,
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  • New. Offer #1 priced at $19.41 + $0.00 shipping estimate = $19.41* total. Product Information. 2005-2007, 2014-2018 Cadillac CTS.FREE SHIPPING

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