Four Seasons 35898 HVAC Pressure Switch

Reliable HVAC Pressure Switch for Vehicle Climate Control

The Four Seasons Pressure Switch 35898 is designed to maintain optimal HVAC system performance by monitoring pressure levels accurately. This system-mounted pressure switch is engineered to meet or exceed OEM standards, ensuring dependable operation in various vehicle makes and models.

• Brand: Four Seasons
• Brand Line: Pressure Switch
• Part Number: 35898
• Type: HVAC Pressure Switch with binary style operation
• Material: Durable steel construction with metal color finish
• Connector Shape: Open with 2 terminals
• Fitting Thread Size: 7/16 in. x 20
• System Mount Location: Designed for system-mounted installation
• Compatible with multiple vehicle HVAC systems requiring pressure monitoring
• Meets or exceeds OEM specifications for reliable performance

Four Seasons Pressure Switch Product Line Overview

The Four Seasons Pressure Switch product line focuses on precision pressure monitoring components for automotive HVAC systems. The Pressure Switch 35898 is part of this line, offering a binary style switch that opens or closes based on system pressure. This ensures accurate control and protection of the HVAC system, helping maintain proper refrigerant flow and system safety.

Detailed Product Description

The Four Seasons Pressure Switch 35898 is a system-mounted pressure switch constructed from steel for durability and long service life. Featuring an open connector shape with two terminals, it provides a reliable electrical connection. The fitting thread size of 7/16 in. x 20 allows for secure installation within the HVAC system. This pressure switch operates in a binary style, opening or closing the circuit based on pressure thresholds to protect the system from abnormal pressure conditions. Its metal finish and robust design make it suitable for use in a variety of vehicle HVAC applications, including popular makes and models that require precise pressure monitoring.

Common Applications and Issues Addressed

• Prevents HVAC system damage due to overpressure or underpressure conditions
• Ensures proper refrigerant flow by monitoring system pressure
• Helps maintain consistent cabin temperature control
• Protects compressor and other HVAC components from pressure-related failures
• Supports diagnostic efforts by providing accurate pressure status signals

Installation Notes and Tips

When installing the Four Seasons Pressure Switch 35898, ensure the system is depressurized and the vehicle is off. The 7/16 in. x 20 fitting thread size requires proper torque to avoid leaks or damage. Verify the open connector shape and two-terminal configuration match the vehicle’s wiring harness. System-mounted installation location should be clean and free of debris to ensure accurate pressure readings. Consult vehicle-specific service manuals for detailed installation procedures and safety precautions.

Quality Assurance and Warranty

This Four Seasons Pressure Switch 35898 meets or exceeds OEM quality standards, providing reliable performance and durability. Manufactured with steel material and tested for system compatibility, it supports long-term HVAC system functionality. Warranty information is available through Four Seasons and typically covers defects in materials and workmanship under normal use conditions.