Global Parts 1711517 A/C Clutch Cycle Switch

A/C Clutch Cycle Switch for GM HVAC Systems

Global Parts 1711517 is an A/C clutch cycle switch built for GM HVAC systems that rely on electrical feedback to manage compressor operation. On modern vehicles, the ECM uses this switch to monitor A/C system conditions; on earlier applications, it helps shut the compressor off before damage occurs.

Fits 1999-2014 Chevrolet Silverado, Chevrolet Suburban, GMC Sierra, GMC Yukon, Cadillac Escalade, and other listed GM applications.

Key Features

• Type: Switch-Purple Oval; 2 Terminal
• Provides electrical feedback to the engine management system
• Supports compressor control in ECM-managed A/C systems
• Used in earlier systems to help prevent compressor failure from unsafe cycling
• Global Parts part number 1711517

Detailed Description

This A/C clutch cycle switch is a direct-fit HVAC electrical component for a wide range of Chevrolet, GMC, Cadillac, Hummer, and select Chevrolet Tracker applications. It is commonly used in GM truck and SUV platforms such as Silverado 1500, Sierra 1500, Tahoe, Yukon, and Escalade, where accurate compressor cycling is important for stable air conditioning performance. Part number 1711517 is also cross-referenced to UAC SW2350C for the same application.

The switch helps the vehicle control system read A/C operating conditions and manage compressor engagement. In vehicles with ECM-based control, that feedback supports proper system operation. In older designs, the switch can interrupt compressor operation when conditions are not safe, helping reduce the risk of compressor damage.

What It Helps Address

• A/C compressor that cycles improperly
• Loss of feedback to the ECM or HVAC control circuit
• Compressor shutoff issues tied to switch failure
• Intermittent cooling on GM truck and SUV platforms
• Faults related to worn or inaccurate clutch cycle switch operation

Installation Notes and Tips

Verify the connector style and terminal count before installation. This unit is listed as a purple oval switch with 2 terminals. Confirm the vehicle application against the fitment list for your Chevrolet Silverado, GMC Sierra, Cadillac Escalade, or other listed model, and inspect the surrounding HVAC components for damage or contamination before replacing the switch.

Quality Assurance

Global Parts supplies this component as an OE-style replacement for the listed GM applications. Part number 1711517 is built to match the specified switch type and fitment requirements for the vehicles shown.