Auto Air Parts - Auto A/C Hose and Line Repair - Repair any auto A/C hose easily - replace just the section of A/C hose needed!

Auto A/C Parts, Tools and Equipment - Do you know what the pressure gauges are telling you about your auto A/C system?

Auto air conditioning repair, recharge, troubleshooting and service information
...for everybody from the apprentice to the professional!

A/C FAQ's

Auto A/C Forum

Auto A/C Parts

A/C Manuals

A/CE™ Manuals

Video Help


Auto air conditioning service products, repair and troubleshooting manuals are available at the COOL ZONE! Secure on-line transactions powered by WorldPay!

Auto A/C parts warehouse

SECURE On-Line Ordering
Home
Add us to your favorites!
Make autoACsystems your homepage!
Tell a friend about autoACsystems
Would you
share you comments with us?

What auto A/C help can we get for you?

Troubleshooting
Auto A/C?
A/CE Manuals for auto A/C Diagnosis
Auto A/C FAQ's
Live A/C Help Videos
Find an A/C Shop
Auto A/C eZine
A/C Tubemaster Professional Auto A/C Hose Repair Solutions

Other A/C Training Solutions & Help

Training Solutions for Corporate Accounts
Solutions for Instructors
Become an autoACsystems affiliate
Sponsoring / Advertising

Have you heard what our Auto A/C eBook customers are saying?

This was probably one of the best books on recharging air conditioning that I have seen...
The e-manuals are absolutely terrific and a great value...
The information was exactly what I needed...
I think these e-books are an outstanding value...
Read more about what customers are saying

Additional help for A/C
Service Shops & Web Sites

Get Your Shop a Web Site now!
Are you listed in our A/C Service Directory?
Get Live Chat hosted for your site! Order now & get 3 months free!

Other A/C Training Solutions & Help

Auto A/C Links
Link to autoACsystems
Site Map
See What COOL PROFIT$ Has to say


autoACsystems
Your best source for complete troubleshooting and diagnosis information on auto A/C systems. Our information provides proper repair, recharge, service and maintenance procedures for all automotive air conditioning systems. Regardless if you have a current CCOT (cycling clutch orifice tube) system or an expansion valve and POA valve system, we've got the information you need. From step-by-step help on retrofitting and recharging to complete A/C compressor or component replacement, our A/C manuals provide you a quick and easy methods that have been proven helpful to everybody from the apprentice to the professional.

Does your A/C parts business have enough sales?
The answer should be that there's never enough! That's why you should contact us now to understand the wide variety of solutions and programs we have available! Include your products in our eBooks! Get listed at the COOL ZONE! Plus a whole lot more opportunities!
Contact us now!

Auto A/C Diagnosis, Repair and Recharge details from the leader in auto A/C service and troubleshooting help!

Before you can repair your A/C Hose, you have to be sure that you know the proper size fitting and hose :
Taking the measurement of the A/C Hose section is easy. Just be sure that you're measuring the tube at the correct spot. Below are all the details you need to determine the correct fitting and hose size needed for repairing any A/C hose.
Determine the right size of A/C Fittings and Hose:
Typically, the size of A/C hose required is determined by the size of the fitting or tube section that is used. There are four fitting sizes that will provide almost 99% coverage for all the A/C hose repairs. The tube O.D.'s (Outside Diameters) are 3/8", 1/2", 5/8" and 3/4". They are commonly converted to 'number' sizes as shown in the fitting size chart below.  

Before you start, it's important to understand where to take the measurement. In order to determine the proper fitting and hose size required for an A/C hose repair, you must take a measurement of the OUTSIDE DIAMETER (O.D.) of the tube section as close to the section of A/C hose as possible. You don't have to discharge the A/C system to do this measurement, but you will have to recover the charge before attempting to remove the hose section and completing the repair.  

It's easy to determine the proper size of fitting and hose. Simply take the measurement on a straight section of tube, as close to the A/C hose as possible!

Measuring the tube or fitting size:
As illustrated above, simply measure the tube section of fitting size by taking a measurement of the tube O.D. (outside diameter) as close to the section of A/C hose as possible. Then refer to the chart below to understand what size of A/C hose or fitting is required to complete the repair.

A/C Hose and Fitting Chart:
With your A/C fitting or tube measurement as determined above, you can quickly find out what size A/C hose or fitting is required from the chart below

TUBE or HOSE O.D. = Outside Diameter
TUBE or HOSE I.D. = Inside Diameter

Tube O.D.

Nominal Size

A/C hose I.D.

A/C hose O.D.

3/8"

#6

5/16" (.312")

3/4" (.750")

1/2"

#8

13/32" (.406")

29/32" (.906")

5/8"

#10

1/2" (.500")

1" (1.000")

3/4"

#12

5/8" (.635")

1-3/32" (1.09375")

Note about the A/C hose sizes listed in the chart:
The above chart provides A/C hose I.D. and O.D. of standard barrier refrigerant hoses. In some applications, the original manufacturer may use 'Reduced Diameter' barrier hose. Reduced Diameter hose is the same INSIDE DIAMETER as standard barrier hose, but the OUTSIDE DIAMETER is reduced. It allows for tighter bends under the hood. However reduced diameter A/C hose can be replaced with standard barrier hose without any effect on fit or performance of the A/C system.

It's also important to remember...:
If you're replacing or repairing an A/C hose, you will require new o-rings or gaskets when reinstalling the hose. The actual o-ring sizes may not be the same as the fitting sizes that you're replacing. By that, we mean that the hose assembly that you're working on could be part of a long assembly that includes different sizes of fittings. Be sure you have all the right o-rings and gaskets to complete the job with leak free joints!

You will also have to recharge the A/C system when you're finished. If you're not sure about all the proper procedures, view the information about How to Recharge your A/C system.


Another look at measuring the A/C fitting:
Here's an actual photo of an A/C fitting that will show you exactly where to measure the tube O.D. (outside diameter). Match the tube O.D. to the chart above to determine what size hose is required to repair your A/C hose assembly.
It's easy to determine the proper size of fitting and hose. Simply take the measurement on a straight section of tube, as close to the A/C hose as possible! This photo shows an actual A/C hose fitting. The red arrows indicate where the tube O.D. measurement should be taken. You should always measure the outside diameter of the tube on a straight section of tube, as close to the A/C hose section as possible.

Everything you need to do professional A/C hose repairs:
Get everything you need to complete these professional A/C hose repairs at the COOL ZONE™ Auto A/C Parts Warehouse. We stock universal hose kits that provide quality barrier hose with the ferrules and retainer clips you need. We also stock the most economical A/C Hose Crimper from Crimpmate and the complete 3 step A/C hose repair system.

Link to this article! If you sell auto A/C parts or service and want your visitors to truly understand how easy it is to repair any A/C hose on their vehicle, you can add the following html code your your web page
and l ink to this article!

From the world's leader in auto A/C service information - autoACsystems.com

Use the fitting chart to determine the right size hose for your A/C repair
Once you've measured the fitting, just use this A/C fitting chart to determine the proper size of A/C hose and fitting that's required for your repair. We've also got complete details about repairing any A/C hose on your vehicle.
HTML Code for this link; Copy and Paste into the body of your web page:
<FONT face="Verdana, Arial, Helvetica, sans-serif" SIZE="2" COLOR="#000000"><B><A HREF="http://www.autoacsystems.com/_faqs/detail/fittingsize.html">Use the fitting chart to determine the right size hose for your A/C repair<BR> </A></B>Once you've measured the fitting, just use this A/C fitting chart to determine the proper size of A/C hose and fitting that's required for your repair. We've also got complete details about repairing any A/C hose on your vehicle.</FONT>

Return to the auto A/C FAQs index

© Copyright 2005 - All Rights Reserved
Powered by autoACsystems.com web servers

end********************************
nAuto A/C Diagnosis, Repair and Recharge details from the leader in auto A/C service and troubleshooting help!

Review the
A/CE™ Manual eBooks

Find out first about all the new titles
as soon as they're released!
Subscribe to our e-mail newsletter


© Copyright 2005-2006 - All Rights Reserved - AutoACSystems.com
Auto A/C Help and Discussion Board at the COOL ZONE™ - Auto A/C Troubleshooting Help