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Four Seasons 20577 HVAC Blower Motor Resistor - Front
Reliable HVAC Blower Motor Resistor for Nissan and Infiniti Vehicles
The Four Seasons Resistor Block 20577 is designed to provide consistent variable speed control for your vehicle's HVAC blower motor. Engineered specifically for select Nissan and Infiniti models, this resistor block ensures proper fan speed regulation and optimal climate control performance.
- Connector Gender: Female
- Connector Shape: Rectangular
- Number of Terminals: 4
- Speed Type: Variable
- Part Type: HVAC Blower Motor Resistor
About the Four Seasons Resistor Block Product Line
The Four Seasons Resistor Block line focuses on delivering precise electrical resistance components that regulate blower motor speeds in automotive HVAC systems. This product line is engineered to meet OEM specifications, providing reliable switching and speed control for compatible vehicles. The 20577 resistor block is part of this line, offering a durable and accurate solution for maintaining proper HVAC blower operation.
Detailed Product Description
The Four Seasons 20577 resistor block features a female rectangular connector with four terminals, designed to fit seamlessly into the HVAC system of Nissan and Infiniti vehicles. Its variable speed capability allows for smooth adjustment of the blower motor, ensuring effective airflow control within the cabin. This resistor block functions as a switch that modulates electrical current to the blower motor, enabling multiple fan speeds and enhancing overall HVAC system performance.
Compatible Vehicles and Common Applications
- Compatible with Nissan Armada, Titan, and Infiniti QX56, QX80 models
- Used to regulate blower motor speeds in HVAC systems
- Addresses issues such as inconsistent fan speeds and blower motor failure
- Helps restore proper climate control functionality
- Prevents overheating of blower motor circuits
Installation Notes and Tips
When installing the Four Seasons 20577 resistor block, ensure the vehicle's ignition is off and the HVAC system is disconnected to avoid electrical hazards. Verify the connector orientation matches the female rectangular design and that all four terminals are securely connected. It is recommended to inspect the blower motor and related wiring for damage before installation to ensure optimal performance.
Quality Assurance and Warranty
Four Seasons manufactures the 20577 resistor block to meet industry standards for durability and electrical performance. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always refer to the product documentation for exact warranty terms.
| Brand | Four Seasons |
| Part Number | 20577 |
| Position | Resistor Block, Front |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Resistor Block |
| Number of Terminals | 4 |
| Speed | Variable |
| Type | Switches |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2016 | INFINITI | QX80 | Front | Resistor Block |
| 2015 | INFINITI | QX80 | Front | Resistor Block |
| 2015 | Nissan | Armada | Front | Resistor Block |
| 2015 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2014 | INFINITI | QX80 | Front | Resistor Block |
| 2014 | Nissan | Armada | Front | Resistor Block |
| 2014 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2013 | INFINITI | QX56 | Front | Resistor Block |
| 2013 | Nissan | Armada | Front | Resistor Block |
| 2013 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2012 | INFINITI | QX56 | Front | Resistor Block |
| 2012 | Nissan | Armada | Front | Resistor Block |
| 2012 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2011 | INFINITI | QX56 | Front | Resistor Block |
| 2011 | Nissan | Armada | Front | Resistor Block |
| 2011 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2010 | INFINITI | QX56 | Front | Resistor Block |
| 2010 | Nissan | Armada | Front | Resistor Block |
| 2010 | Nissan | TITAN | N/A | Compatible with HVAC systems featuring Automatic Temperature Control (ATC).; Resistor Block |
| 2009 | Nissan | Armada | Front | Resistor Block |
| 2009 | Nissan | TITAN | N/A | w/ ATC (Automatic Temperature Control); From 9/08; Resistor Block |
* 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.