Collection: AC Line Repair Kits: The Permanent Solution to Leaking A/C Lines
Don't replace the entire line. Splice it, fix it, and forget it.
If you’ve discovered a puddle of neon green dye under your vehicle or heard the hissing sound of refrigerant escaping, you know the frustration of a leaking A/C line. But when you call the dealership or the parts store, the news often gets worse: the replacement line costs hundreds of dollars, is on backorder, or—worst of all—is completely discontinued.
You don't need a brand-new factory line to get your air conditioning blowing cold again. With Auto Cooling Solutions' AC Line Repair Kits (EZ Flex), you can repair just the damaged section of the line. Whether it’s a pinhole leak from corrosion, a crack from vibration fatigue, or a "rub-through" spot, our universal repair kits provide a permanent, pressure-rated fix that saves you time, money, and sanity.
Why Choose an AC Line Repair Kit Over OEM Replacement?
1. Massive Cost Savings
OEM (Original Equipment Manufacturer) AC lines are notoriously expensive. Complex aluminum bends and specific mounting brackets drive the price up. A full line replacement often costs between $1200 and $2400 for the repair. Our AC Line Repair Kits allow you to fix the problem for a fraction of that cost, typically under $50.
2. Drastically Reduced Labor Time
Factory AC lines are often installed before the engine is dropped into the chassis. This means removing them can require dismantling the dashboard, removing the bumper, or even lifting the engine. By using a splice kit, you only work on the accessible, damaged section. Cut out the bad spot, splice in the new kit, and you're done in minutes, not hours.
3. Solves the "Discontinued Part" Nightmare
For older vehicles, finding a replacement line is often impossible. Auto Cooling Solutions specializes in keeping these vehicles on the road. Our kits are universal based on line diameter, meaning if you have a standard 3/8", 1/2", or 5/8" line, we have a repair kit that fits, regardless of the Make, Model, or Year.
Understanding the "EZ Flex" Advantage
Not all AC line repair methods are created equal. Traditional "compression unions" (rigid metal splices) require the two ends of your cut line to align perfectly. If there is any tension, vibration, or misalignment, those rigid splices will leak again.
The Auto Cooling Solutions Difference: Flexibility.
Our kits feature a high-pressure rubber hose section crimped between two heavy-duty aluminum fittings. This flexible design offers three critical advantages:
- Vibration Dampening: The rubber section absorbs engine vibration, preventing the fatigue cracks that killed your original aluminum line.
- Misalignment Correction: If you need to cut out a bent section of tubing, our flexible kit bridges the gap easily, even if the ends don't line up straight.
- Routing Freedom: Reroute lines away from rubbing points or hot exhaust manifolds to prevent future failure.
How to Identify the Right Repair Kit for Your Vehicle
Since our kits are universal, you don't look them up by "2010 Chevy Tahoe." Instead, you look them up by the Outside Diameter (O.D.) of your aluminum AC line. Here is the industry standard sizing guide:
| AC System Size | Tube O.D. (Inches) | Common Application | ACS Kit Series |
|---|---|---|---|
| #6 | 3/8" (0.375") | Liquid Lines (High Side) | TR6 Series |
| #8 | 1/2" (0.500") | Discharge Lines | TR8 Series |
| #10 | 5/8" (0.625") | Suction Lines (Low Side) | TR10 Series |
| #12 | 3/4" (0.750") | Heavy Duty | TR12 Series |
| #8m | 5/16" (0.312") | Discharge / Suction | TR8m Series |
| #10m | 5/16" (0.312") | Heavy Duty | TR10m Series |
| #12mm | 15/32" (0.47") | Discharge / Suction | TR12m Series |
| #14.5mm | 9/16" (0.57") | Heavy Duty | TR14.5m Series |
Tip: Use a caliper to measure the aluminum line near the leak. If you don't have a caliper, a standard open-end wrench can be used as a "go/no-go" gauge to estimate the size.
Watch Find your ac line size video
Installation Guide: Fixing Your AC Line in 4 Steps
Whether you are a professional mechanic or a DIY enthusiast, our kits are designed for straightforward installation.
Step 1: Locate and Cut
Identify the leaking section. Using a tubing cutter (recommended for a clean cut) or a fine-tooth hacksaw, remove the damaged portion of the aluminum line. Important: Measure the length of the repair kit you purchased (e.g., 6", 12", 24") and ensure you don't cut out a section larger than the kit can bridge.
Step 2: Deburr and Clean (CRITICAL)
This is the most important step. After cutting, the aluminum tube will have sharp edges. Use a file or deburring tool to smooth the outer edge. If you leave sharp edges, they will slice the internal O-rings of the connector during installation, causing a leak.
Step 3: Install the Compression Fittings
Slide the nut and the ferrule (compression ring) onto the aluminum tube. Insert the tube into the repair kit's end until it bottoms out. Slide the ferrule and nut up to the threads.
Step 4: Tighten and Recharge
Using two wrenches (one to hold the body, one to turn the nut), tighten the compression fitting. The ferrule will crush down onto the aluminum tube, creating a 360-degree seal that can withstand high refrigerant pressures. Once both sides are secure, vacuum the system to remove moisture and recharge with refrigerant.
Watch How to Install AC Line Repair Kit Video
Is an AC Line Repair Kit what you need?
Sometimes, the leak is in the rear lines of a van or SUV (like a Dodge Caravan, Tahoe, or Explorer), and the cost to repair the OEM tubing isn't worth it. If you want a quality replacement for the rear AC lines, our Rear AC Line Set is your answer. If you rarely use the rear AC, consider our Rear AC Block Off Kits. These cap off the lines leading to the rear, saving the front AC function without the hassle of chasing leaks underneath the vehicle.
Frequently Asked Questions (FAQ)
Are these repair kits compatible with R134a and R1234yf?
Yes, the hoses and seals used in Auto Cooling Solutions repair kits are compatible with all standard automotive refrigerants and oils, including R134a and the newer R1234yf.
Can I use this on the high-pressure side?
Absolutely. Our kits are rated for the high pressures found in the discharge and liquid lines, as well as the lower pressures of the suction line.
Do I need a special crimping tool?
No! That is the beauty of our system. The "crimp" is already done at our factory on the flexible hose section. You only need standard wrenches to tighten the compression fittings onto your existing aluminum lines.
EZ Flex AC Line Repair Kits
-
EZ Flex AC Line Repair Kits
Use the genuine EZ Flex™ AC Line Repair Kit on any line anywhere in your auto AC system. These line repair kits are designed to be used on any portion of AC line!
-
Standard Size EZ Flex AC Line
Our standard AC line repair kits are below.
Easy to handle and super easy to install!
Find helpful how to videos at the bottom of this page.
-
Customize Your EZ Flex AC Line
Custom AC Line Repair Kit Listing.For any custom-made AC Line Repair Kit please see our Custom AC Line Repair Kit listing. Please read the listing to understand the ordering process.
