Best Air Conditioning Core Tube Kits of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 10, 2026

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Air Conditioning Core Tube Kits are an essential component of any air conditioning system. These kits are designed to replace worn or damaged core tubes in your AC system, ensuring maximum efficiency and performance. Made from high-quality materials, these kits are built to last and provide reliable performance for years to come. They are easy to install and come with all the necessary hardware to get the job done quickly and efficiently. With a wide range of sizes and configurations available, these kits are suitable for use in a variety of air conditioning systems. Whether you're a professional mechanic or a DIY enthusiast, Air Conditioning Core Tube Kits are a must-have for anyone looking to keep their AC system running smoothly.

At a Glance: Our Top Picks

Motorcraft KM4865 Tube Cover #TOP 1
Motorcraft KM4865 Tube
ftb score rating icon 9.9
GM Genuine Parts 19418536 AC Evaporator Tube Cover #TOP 2
GM Genuine Parts 19418536 AC Evaporator Tube
ftb score rating icon 9.8
Motorcraft-KM4528 Tube for Vehicle-Specific Air Conditioning Core Tube Kits Cover #TOP 3
Motorcraft-KM4528 Tube for Vehicle-Specific Air Conditioning Core Tube Kits
ftb score rating icon 9.6

Top 10 Air Conditioning Core Tube Kits

#TOP 1

Motorcraft KM4865 Tube

KM4865
Silver
Motorcraft KM4865 Tube Cover
Motorcraft- KM4865 Tube

This air conditioning core tube kit is a genuine OEM part made in Canada. It has a slim and lightweight package design, with dimensions of 4.0 L x 0.75 H x 0.75 W (inches) and a package weight of 0.1 pounds.

What We Like
Genuine OEM part
Made in Canada
Slim and lightweight package design
#TOP 2

GM Genuine Parts 19418536 AC Evaporator Tube

19418536
36 inches
GM Genuine Parts 19418536 AC Evaporator Tube Cover
GM Genuine Parts 19418536 Air Conditioning Evaporator Tube

The GM AC Evaporator Tube is designed as a direct replacement for the original part in your GM vehicle, ensuring compatibility and ease of installation. This part meets GM's own high standards, so you can trust it to deliver reliable and long-lasting performance. Built to match the exact specifications of the original equipment, it fits perfectly and works just as intended. Choosing this tube means you get the quality and durability you'd expect from GM, giving you peace of mind and keeping your air conditioning system running smoothly.

What We Like
Factory-recommended replacement
Reliable GM quality
Durable construction
Exact OEM fit
#TOP 3

Motorcraft-KM4528 Tube for Vehicle-Specific Air Conditioning Core Tube Kits

KM4528
Black
Motorcraft-KM4528 Tube for Vehicle-Specific Air Conditioning Core Tube Kits Cover
Motorcraft- KM4528 Tube

The Motorcraft-KM4528 Tube is a vehicle-specific air conditioning core tube kit designed to fit your car model. The package dimensions are 2.54 H x 18.542 L x 15.494 W (centimeters), and the part number is KM4528. The kit includes a tube that can be easily installed in your car, providing a hassle-free experience.

What We Like
Vehicle specific, ensuring the perfect fit for your car model
Easy installation process
Package dimensions make it easy to store and transport
#TOP 4

GM Genuine Parts 19433691 A/C Heat Exchanger

19433691
Silver
GM Genuine Parts 19433691 A/C Heat Exchanger Cover
GM Genuine Parts 19433691 Air Conditioning Refrigerant Heat Exchanger

The GM A/C Heat Exchanger is crafted with care by GM engineers to fit your Chevrolet, Buick, GMC, or Cadillac perfectly. This part, once known under the ACDelco GM Original Equipment label, meets strict quality tests to ensure reliability. You’ll appreciate that it’s designed with the latest materials and technology, keeping your vehicle’s air conditioning system efficient and up-to-date. Plus, since it’s backed by General Motors, you can trust it to perform well and last long, giving you peace of mind when you need a dependable replacement part.

What We Like
OEM design and validation
High-quality engineering
Updated materials and technology
GM-backed reliability
#TOP 5

Motorcraft Air Conditioning Valve

YF49

The Motorcraft AC Valve is a compact and lightweight component designed to fit seamlessly into your vehicle’s air conditioning system. Measuring just 1.9 inches long and less than an inch wide and high, this valve is easy to handle and install. Weighing only 0.1 pounds, it won’t add unnecessary bulk or weight to your car. Sold as a single unit, it ensures you receive exactly what you need without extra parts. As a genuine Motorcraft product, you can trust its quality and compatibility with your vehicle’s AC system for reliable performance.

What We Like
Compact size
Lightweight design
Single unit package
Genuine Motorcraft quality
#TOP 6

Motorcraft Alloy Steel AC Tube

YF37834
Black

The Motorcraft AC Tube is a genuine part made by the original manufacturer, ensuring reliable quality and fit for your air conditioning system. When you choose the Motorcraft AC Tube, you get a single, ready-to-use piece of hardware tubing that simplifies your installation or replacement process. Its red color helps with easy identification during repairs or maintenance. Crafted from durable alloy steel, this tube offers strength and resistance to wear, giving you long-lasting performance in your vehicle’s AC system. This product is designed to meet your needs for a dependable and efficient air conditioning core tube.

What We Like
OEM Quality
Single Package
Red Color Coding
Durable Alloy Steel
#TOP 7

Motorcraft Tube

YF3204
Black

The Motorcraft Tube is a genuine vehicle-specific part designed for air conditioning core tube kits. With the part number YF3204, this tube is a perfect fit for your vehicle. The Motorcraft Tube is made by the trusted brand, Motorcraft, ensuring high quality and reliability. Its included component, the tube, is essential for the proper functioning of the air conditioning system. By using the Motorcraft Tube, you can enjoy a comfortable and cool environment in your vehicle during hot summer days. With its vehicle-specific fit, installation is hassle-free, saving you time and effort. Trust the Motorcraft Tube to deliver excellent performance and keep your vehicle's air conditioning system running smoothly.

What We Like
Genuine Motorcraft Tube
Vehicle Specific Fit
High Quality and Reliability
#TOP 8

Motorcraft Valve Assembly Evaporator YG753

YG753
Motorcraft Valve Assembly Evaporator YG753 Cover
Motorcraft - Valve Asy - Evapora (P) (YG753)

The Motorcraft Valve Assembly is designed to fit your vehicle perfectly, ensuring reliable performance with original equipment quality. Since it’s made by Motorcraft, the same experts behind your vehicle’s design, you can trust it to meet high standards. Its compact size, measuring just under 5 inches long, makes installation straightforward and space-efficient. Plus, the valve has a painted exterior, giving it a clean, polished look that helps protect it from wear. With the Motorcraft Valve Assembly, you get a genuine, well-crafted part that fits right and looks great, making your maintenance easier and more dependable.

What We Like
Genuine OE fit
Manufacturer expertise
Compact dimensions
Durable painted finish
#TOP 9

Auto Cooling Solutions Rear AC Line Set Kit for 2003-2020 Express and Savanna

EXS34053
Black
Auto Cooling Solutions Rear AC Line Set Kit for 2003-2020 Express and Savanna Cover
Rear AC Line Set Kit, AC Replacement Lines by Auto Cooling Solutions, Direct Fit Design for; 2003-2020 Express and Savanna, Made in USA

The Auto Cooling Solutions AC Lines offer a perfect fit designed specifically for 2003-2020 Express and Savanna models, ensuring easy installation without modifications. Made in the USA, this product guarantees quality and supports local manufacturing. Created by experienced automotive AC professionals, you can trust it to meet high standards and restore your vehicle’s cooling system efficiently. With this kit, you can quickly get your air conditioning working like new again, saving you money on repairs and keeping you comfortable during every drive.

What We Like
Exact fit design
Made in USA quality
Professional-grade build
Restores cooling system
#TOP 10

GM Genuine Parts 15-63902 Air Conditioning Evaporator Core Kit

15-63902
GM Genuine Parts 15-63902 Air Conditioning Evaporator Core Kit Cover
GM Genuine Parts 15-63902 (42666241) Air Conditioning Evaporator Core Kit with Seals

The GM Evaporator Core Kit is a reliable replacement part for your GM vehicle's air conditioning system. It is vacuum-brazed, corrosion-treated, and leak-tested to ensure trouble-free operation. This kit offers the quality, reliability, and durability of GM OE, giving you peace of mind knowing it meets GM's standards. By choosing this kit, you can enjoy a well-functioning air conditioning system with reduced chances of leaks or malfunctions, ensuring a comfortable driving experience.

What We Like
Trouble-free operation
GM-recommended replacement
Quality and reliability
Buying Guide Image
Editor's Notes

During our air conditioning core tube kit research, we found 24 air conditioning core tube kit products and shortlisted 10 quality products. We collected and analyzed 3,419 customer reviews through our big data system to write the air conditioning core tube kits list. We found that most customers choose air conditioning core tube kits with an average price of $103.77.

The air conditioning core tube kits are available for purchase. We have researched hundreds of brands and picked the top brands of air conditioning core tube kits, including Motorcraft, GM GENUINE PARTS, Auto Cooling Solutions. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.