Dometic AT9Z Replacement Coil Assembly with Flow Control Valve & Bleed - Part# 264120008

DometicSKU: 264120008
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 10:09 AM

Sale price$2,698.69 Regular price$4,290.92
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The Dometic AT9Z coil assembly is a critical component for RV air conditioning systems that require precise refrigerant flow control and pressure regulation. This genuine OEM replacement part includes an integrated flow control valve and bleed mechanism, making it essential for RV owners experiencing cooling issues or performing routine AC maintenance on Dometic systems.

Key Features

  • Genuine OEM Dometic replacement coil assembly for guaranteed compatibility
  • Integrated flow control valve maintains optimal refrigerant pressure
  • Built-in bleed mechanism prevents pressure spikes and system damage
  • Direct replacement for original AT9Z specifications
  • Factory-sealed and tested for reliability
  • Includes all necessary connection points for standard Dometic AC installations

Technical Specifications

Specification Details
Part Number 264120008
Assembly Type Coil Assembly with Valve
Component AT9Z Replacement
Valve Type Flow Control with Bleed
OEM Status Genuine Dometic Original Equipment Manufacturer
Application Dometic RV Air Conditioning Systems

Frequently Asked Questions

Q: How do I know if my AT9Z coil assembly needs replacement?

A: Common signs include reduced cooling capacity, hissing or gurgling sounds from the AC unit, refrigerant leaks around the coil area, or system pressure warnings on your RV's diagnostic panel. If your Dometic AC isn't cooling properly after a basic filter check, the coil assembly is often the culprit.

Q: Is this a direct replacement for my existing Dometic coil?

A: Yes, this is a genuine OEM Dometic AT9Z coil assembly designed as a direct replacement. However, we recommend verifying your current part number matches 264120008 before ordering. Our expert support team can help confirm compatibility with your specific RV model.

Q: Do I need special tools to install this coil assembly?

A: Installation requires basic HVAC knowledge and standard tools. The assembly connects to existing refrigerant lines and electrical connections. Many RV owners handle this themselves, but we recommend consulting your RV manual or contacting a certified Dometic technician if you're unfamiliar with AC system work.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM equipment backed by expert support to ensure you get the exact component your RV needs.

100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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