Rear/Aux AC Line Set #YSH34913 For Tahoe GMC Yukon Escalade 2015-2020

Rear/Aux AC Line Set for GMC, Chevrolet, Cadillac

This rear/aux AC line set replaces failing air conditioning lines to restore proper refrigerant flow, referencing part number YSH34913.

Overview

This rear/aux AC line set is designed to replace leaking or damaged underbody air conditioning lines on full-size SUVs. The rear/aux AC line set provides a durable path for refrigerant to flow reliably to the auxiliary climate control system, keeping passengers comfortable. It is ideal for vehicle owners and mechanics seeking a reliable replacement solution that avoids difficult original line routings.

Built For Performance

• Constructed from high-grade aluminum and flexible high-pressure hoses to resist corrosion and leaks.
• Engineered to bypass original factory lines with an easier-to-install routing path.
• Pressure tested to meet or exceed auxiliary climate control system demands.
• Includes direct-fit fittings for a secure, leak-free seal.

Fits These Machines

• for Chevrolet Tahoe 2015-2020
• for GMC Yukon 2015-2020
• for Cadillac Escalade 2015-2020

On-The-Job Use

• Used during routine climate control maintenance on full-size SUVs.
• Applied when replacing corroded or punctured factory underbody lines.
• Deployed in automotive repair shops to resolve rear cabin cooling issues.

Specs At A Glance

Good To Know

Q: Why do rear AC lines typically fail? A: Factory lines are routed under the chassis where they are highly vulnerable to road salt, moisture, and debris, leading to corrosion and leaks. Replacing them with a durable line set restores system pressure.

Q: Is professional installation recommended for this line set? A: Yes, because the vehicle air conditioning system must be properly evacuated and recharged using specialized equipment after the line set is installed.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.