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Four Seasons 20077 HVAC Blower Motor Resistor - Front
Overview of Four Seasons Resistor Block 20077
The Four Seasons Resistor Block 20077 is a critical HVAC blower motor resistor designed for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. This resistor block ensures proper blower motor speed control, maintaining consistent climate control performance in your vehicle.
- Connector Gender: Female
- Connector Shape: Rectangular
- Number of Terminals: 9
- Terminal Type: Pin/wire lead
- Speed Setting: Fixed #4
- Meets or exceeds OEM specifications
About the Four Seasons Resistor Block Product Line
The Four Seasons Resistor Block product line focuses on providing reliable HVAC blower motor resistors that meet or exceed original equipment manufacturer standards. The 20077 resistor block is engineered to deliver consistent electrical resistance and durability, ensuring proper blower motor speed regulation for compatible vehicles.
Detailed Product Description
This HVAC blower motor resistor from Four Seasons features a female rectangular connector with nine terminals, designed for secure and precise electrical connections. The fixed speed #4 setting allows for stable blower motor operation, contributing to effective climate control in vehicles such as the Buick Century, Chevrolet Impala, and Pontiac Grand Prix. The pin/wire lead terminal type supports straightforward installation and reliable conductivity.
Compatible Vehicles and Common Applications
This resistor block is compatible with a range of Buick, Chevrolet, Oldsmobile, and Pontiac models, including Century, Corvette, Grand Prix, Impala, Intrigue, LaCrosse, Montana, Monte Carlo, Regal, Riviera, Silhouette, and Trans Sport. It is commonly used to address HVAC blower motor issues such as:
- Inconsistent blower motor speeds
- Blower motor only working on certain speed settings
- Complete loss of blower motor function
- Intermittent HVAC fan operation
- Electrical resistance failure within the blower motor circuit
Installation Notes and Tips
When installing the Four Seasons Resistor Block 20077, ensure the vehicle’s HVAC system is powered off to avoid electrical hazards. Verify the connector orientation matches the female rectangular shape and that all nine terminals align correctly. Properly secure the resistor block to prevent vibration damage and confirm all wire leads are firmly connected to maintain optimal electrical contact.
Quality Assurance and Warranty
The Four Seasons Resistor Block 20077 meets or exceeds OEM specifications, providing dependable performance and durability. This part is manufactured to rigorous quality standards to ensure long-lasting operation in your Buick, Chevrolet, Oldsmobile, or Pontiac vehicle. Warranty coverage details should be confirmed with the product documentation or manufacturer.
| Brand | Four Seasons |
| Part Number | 20077 |
| Position | Resistor Block, Front |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Resistor Block |
| Meets / Exceeds OEM? | Yes |
| Number of Terminals | 9 |
| Speed | Fixed # 4 |
| Terminal Type | Pin/ Wire Lead |
| Type | Switches |
This part fits 54 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2005 | Buick | LaCrosse | N/A | 7 Blade Term.; Resistor Block | |||
| 2004 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2004 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2003 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2003 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2003 | Chevrolet | Impala | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2003 | Chevrolet | Monte Carlo | N/A | Fits HVAC blower control switch with manual control.; Resistor Block | |||
| 2003 | Pontiac | Grand Prix | N/A | Resistor Block | |||
| 2002 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2002 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2002 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2002 | Chevrolet | Impala | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2002 | Chevrolet | Monte Carlo | N/A | Fits HVAC blower control switch with manual control.; Resistor Block | |||
| 2002 | Oldsmobile | Intrigue | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2002 | Pontiac | Grand Prix | N/A | Resistor Block | |||
| 2001 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2001 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2001 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2001 | Chevrolet | Impala | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2001 | Chevrolet | Monte Carlo | N/A | Fits HVAC blower control switch with manual control.; Resistor Block | |||
| 2001 | Oldsmobile | Intrigue | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2001 | Pontiac | Grand Prix | N/A | Resistor Block | |||
| 2000 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2000 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 2000 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2000 | Chevrolet | Impala | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2000 | Chevrolet | Monte Carlo | N/A | Fits HVAC blower control switch with manual control.; Resistor Block | |||
| 2000 | Oldsmobile | Intrigue | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2000 | Oldsmobile | Silhouette | N/A | Resistor Block | |||
| 2000 | Pontiac | Grand Prix | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 2000 | Pontiac | Montana | N/A | Resistor Block | |||
| 1999 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1999 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1999 | Buick | Riviera | N/A | w/o ATC (Automatic Temperature Control); Motor Resistor | |||
| 1999 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1999 | Oldsmobile | Intrigue | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1999 | Oldsmobile | Silhouette | N/A | Resistor Block | |||
| 1999 | Pontiac | Grand Prix | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1999 | Pontiac | Montana | N/A | Resistor Block | |||
| 1999 | Pontiac | Trans Sport | N/A | Resistor Block | |||
| 1998 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1998 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1998 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1998 | Oldsmobile | Intrigue | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1998 | Oldsmobile | Silhouette | N/A | Resistor Block | |||
| 1998 | Pontiac | Grand Prix | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1998 | Pontiac | Trans Sport | N/A | Resistor Block | |||
| 1997 | Buick | Century | Sedan | 3.1L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1997 | Buick | Regal | Sedan | 3.8L | V6 | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block |
| 1997 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1997 | Oldsmobile | Silhouette | N/A | Resistor Block | |||
| 1997 | Pontiac | Grand Prix | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Resistor Block | |||
| 1997 | Pontiac | Trans Sport | N/A | 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.