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Four Seasons 35903 Engine Cooling Fan Motor Relay
Reliable Engine Cooling Fan Motor Relay for Select GM Vehicles
The Four Seasons Relay 35903 is a 12-volt engine cooling fan motor relay designed to maintain optimal cooling system performance. Engineered for compatibility with Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, this relay ensures proper fan operation in vehicles like the Cavalier, Cimarron, Firenza, J2000, J2000 Sunbird, and Skyhawk.
Key Features of Four Seasons Relay 35903
- 12-volt standard relay with a 30-amp amperage rating
- Equipped with 4 blade terminals (male and female connectors)
- Includes mounting bracket and protective skirt for secure installation
- Rectangular connector shape in black color for easy identification
- Meets or exceeds OEM specifications for reliable performance
About the Four Seasons Relay Product Line
The Four Seasons Relay product line focuses on delivering dependable electrical components for automotive cooling systems. The Relay 35903 is part of this line, offering a standard relay style that integrates seamlessly with factory wiring harnesses. This ensures consistent fan motor control and helps maintain engine temperature within manufacturer guidelines.
Detailed Product Description
This engine cooling fan motor relay operates at 12 volts and supports up to 30 amps, making it suitable for controlling the cooling fan in various GM vehicles. The relay features four blade terminals with a combination of male and female connectors, designed for straightforward installation and secure electrical connections. The included bracket and skirt provide additional mounting stability and protection against environmental factors. Its black rectangular connector shape matches OEM design, facilitating a direct replacement without modification.
Common Applications and Issues Addressed
- Restores proper cooling fan operation in Buick Cavalier and Pontiac J2000 models
- Resolves intermittent or non-functioning engine cooling fan problems
- Prevents engine overheating caused by relay failure in Chevrolet Firenza and Oldsmobile Skyhawk
- Eliminates electrical faults related to worn or damaged fan motor relays
- Supports consistent engine temperature regulation for Cadillac and other compatible vehicles
Installation Notes and Tips
- Verify vehicle compatibility with Buick, Cadillac, Chevrolet, Oldsmobile, or Pontiac models listed
- Disconnect the battery before replacing the relay to avoid electrical shorts
- Ensure the relay terminals align correctly with the vehicle’s wiring harness connectors
- Use the included bracket and skirt for secure mounting and protection
- Test the cooling fan operation after installation to confirm proper relay function
Quality Assurance and Warranty
The Four Seasons Relay 35903 meets or exceeds OEM standards, ensuring reliable performance and durability. Manufactured to strict quality controls, this relay is designed to provide consistent engine cooling fan operation. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.
| Brand | Four Seasons |
| Part Number | 35903 |
| Position | Relay |
| Amperage Rating | 30 |
| Bracket? | w/ Bracket |
| Color | Black |
| Connector Gender | female |
| Connector Shape | Rectangular |
| Description | Relays |
| Meets / Exceeds OEM? | Yes |
| Skirt? | Yes |
| Style | Standard Relay |
| Terminal Gender | Male |
| Terminal Quantity | 4 |
| Terminal Type | Blade |
| Type | Standard |
| Voltage | 12 |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1984 | Buick | Skyhawk | 2.0L | L4 | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1984 | Buick | Skyhawk | 1.8L | L4 | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1984 | Cadillac | Cimarron | N/A | Relay | ||
| 1984 | Chevrolet | Cavalier | N/A | Fits vehicles with air conditioning systems.; Relay | ||
| 1984 | Oldsmobile | Firenza | 2.0L | L4 | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1984 | Pontiac | J2000 Sunbird | 2.0L | L4 | N/A | Fits vehicles with air conditioning systems.; Relay |
| 1983 | Buick | Skyhawk | N/A | Fits vehicles with air conditioning systems.; Relay | ||
| 1983 | Cadillac | Cimarron | N/A | Relay | ||
| 1983 | Chevrolet | Cavalier | N/A | Fits vehicles with air conditioning systems.; Relay | ||
| 1983 | Oldsmobile | Firenza | N/A | Fits vehicles with air conditioning systems.; Relay | ||
| 1983 | Pontiac | J2000 | N/A | Fits vehicles with air conditioning systems.; Relay |
* 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.