HomeHVAC > Motors, Core, Case and Related ComponentsUniversal Air SW11457C HVAC Blower Motor Resistor
Part #: SW11457C

Universal Air SW11457C HVAC Blower Motor Resistor

Blower Resistor
4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Blower Resistor
Fitment: Mazda, CX-7
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Reliable HVAC Blower Motor Resistor for Mazda CX-7

The Universal Air Blower Resistor SW11457C is designed specifically for the Mazda CX-7 to ensure consistent HVAC blower motor performance. This replacement part helps maintain proper fan speed control and climate comfort inside your vehicle.

  • Compatible with Mazda CX-7 models
  • Part number SW11457C for precise identification
  • Designed to regulate blower motor speeds effectively
  • Durable construction for long-lasting operation
  • Direct replacement for original blower motor resistor

About the Universal Air Blower Resistor Product Line

The Universal Air Blower Resistor line focuses on providing reliable HVAC blower motor resistors that meet or exceed OEM specifications. This product line is engineered to deliver consistent electrical resistance, ensuring proper blower motor speed control and preventing HVAC system malfunctions. The SW11457C is part of this line, offering a dependable solution for maintaining the heating and cooling performance in Mazda CX-7 vehicles.

Product Details and Functionality

The SW11457C blower motor resistor controls the electrical current flowing to the blower motor, allowing the HVAC system to adjust fan speeds accurately. Over time, resistors can fail due to heat and electrical stress, leading to blower motor issues such as loss of certain fan speeds or complete failure. This replacement resistor restores proper function, ensuring your Mazda CX-7’s HVAC system operates smoothly and efficiently.

Common Issues Resolved by This Blower Motor Resistor

  • Loss of multiple blower fan speeds
  • Blower motor stuck on one speed
  • Intermittent blower motor operation
  • HVAC system failing to circulate air properly
  • Overheating or electrical resistance failure in blower circuit

Installation Notes and Tips

Installation of the SW11457C blower motor resistor requires access to the HVAC blower motor housing, typically located under the dashboard on the passenger side. Disconnect the vehicle battery before beginning to avoid electrical hazards. Remove the old resistor carefully, noting the connector and mounting points, then install the new resistor ensuring a secure fit and proper electrical connection. Testing the blower motor speeds after installation is recommended to confirm correct operation.

Quality Assurance and Warranty

Universal Air manufactures the SW11457C blower motor resistor to meet industry standards for durability and performance. While specific warranty details are not provided here, Universal Air products generally come with a limited warranty against defects in materials and workmanship. For warranty information, refer to the product packaging or contact the manufacturer directly.

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2012MazdaCX-7N/ANot compatible with Automatic Temperature Control system; Blower Resistor
2011MazdaCX-7N/ANot compatible with Automatic Temperature Control system; Blower Resistor
2010MazdaCX-7N/ANot compatible with Automatic Temperature Control system; Blower Resistor
2009MazdaCX-7N/ANot compatible with Automatic Temperature Control system; Blower Resistor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.