ACDelco Auxiliary A/C Evaporator Hose Assembly

ACDelco Auxiliary A/C Evaporator Hose Assemblies: OE Quality for Rear Climate Control

When a GM vehicle's rear air conditioning starts blowing warm or refrigerant levels mysteriously drop, the auxiliary A/C evaporator hose assembly is often the culprit. These assemblies are the critical link in any rear-A/C-equipped vehicle's climate system, and choosing the right replacement part matters enormously — both for system performance and long-term durability. ACDelco is one of the few brands that can offer true OE-sourced replacements for this exacting component.

What Is an Auxiliary A/C Evaporator Hose Assembly?

Auxiliary A/C evaporator hose assemblies are purpose-built hose-and-line circuits found in vehicles equipped with rear-zone or dual-zone air conditioning. These assemblies are for use with vehicles that have rear A/C, containing the auxiliary evaporator connecting hose and lines that connect the rear evaporator to the front A/C lines. Without an intact, leak-free assembly, refrigerant cannot properly circulate to the rear evaporator core, leaving back-seat passengers without meaningful cooling — a particularly noticeable issue in larger SUVs, crossovers, and full-size trucks used for family hauling.

Why ACDelco Stands Apart in This Category

GM Genuine Parts and ACDelco OE are the exact original equipment manufacturer (OEM) components installed during assembly for Chevrolet, Buick, GMC, and Cadillac. That heritage is especially relevant for auxiliary A/C hose assemblies, where routing geometry, fitting type, and refrigerant-grade material compatibility must be spot-on for a leak-free, code-free installation. ACDelco Auxiliary A/C Evaporator and Heater Hose Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

ACDelco's lineup in this category includes part numbers such as 15-34054, 15-33010, 15-33480, and 15-33439 — each engineered as a direct-fit replacement for specific GM platforms. Fitment examples span the 2007 Saturn Outlook, 2008–2017 Buick Enclave, 2008–2016 GMC Acadia, 2009–2017 Chevrolet Traverse, and 2017 GMC Acadia Limited, as well as the 2007–2014 Cadillac Escalade ESV, 2007–2014 Chevrolet Suburban 1500, and 2007–2014 GMC Yukon XL 1500. This wide coverage makes ACDelco the natural first stop for technicians and DIYers working on GM's popular truck-based and crossover platforms.

ACDelco Gold parts are a high-quality alternative to OE parts, manufactured to meet expectations for fit, form, and function — making them a smart choice for General Motors vehicles and many makes and models, including special applications. ACDelco offers nearly 90,000 auto parts across 37 product lines , and that breadth of catalog support means that when you need an auxiliary A/C hose assembly for a GM vehicle, an ACDelco part number is almost always available.

Key Features of ACDelco Auxiliary A/C Evaporator Hose Assemblies

• OE-Sourced Engineering: Crafted to meet and often exceed OEM standards, these assemblies are direct replacements promising the durability, fit, and functionality that only original equipment can provide.
• R-134a Compatible Materials: These assemblies are compatible with R134A refrigerant and feature quick connects and block-style end fittings suited to factory service procedures.
• Backed by General Motors: All official components feature a limited warranty backed entirely by General Motors.
• Molded Assembly Construction: Many units in this line are supplied as complete molded assemblies, eliminating the need to source individual hose segments or fabricate custom fittings.

Whether you are a shop technician diagnosing a rear A/C complaint on a Suburban or a weekend mechanic refreshing the climate system on a well-traveled Traverse, ACDelco auxiliary A/C evaporator hose assemblies deliver the confidence of a factory-engineered part. Browse the full Auxiliary A/C Evaporator Hose Assembly category or explore the complete ACDelco parts catalog to find the right assembly for your application.