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GM Genuine Parts 15-5378 Air Conditioning Orifice Tube

4.7 4.7 out of 5 stars 2,058 ratings

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Brand GM
Color Original Version
Item Weight 0.01 Pounds

About this item

  • Restore AC performance due to restricted orifice tubes
  • GM recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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GM Genuine Parts 15-5378 Air Conditioning Orifice Tube
GM Genuine Parts 15-5378 Air Conditioning Orifice Tube
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Price$9.32-23% $4.99
List:$6.44
$6.06$8.65$20.80-27% $8.69
List:$11.85
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Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
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weight
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0.03 pounds
0.1 pounds
0.01 pounds

From the manufacturer

Certainty Starts Here

THREE TIERS OF A PREMIUM PORTFOLIO

GM OE

ACDelco Gold

ACDelco Silver

GM ORIGINAL EQUIPMENT

GM Genuine Parts and ACDelco Original Equipment are the true OE parts installed during production or validated by General Motors for GM vehicles. These maintenance, repair, powertrain and collision components are designed and engineered to meet rigorous standards set by General Motors.

GOLD

ACDelco Gold parts are the high-quality alternative to OE parts. These parts are 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.

SILVER

ACDelco Silver parts are high-quality, high-value options for General Motors vehicles, as well as for most makes and models.

Our History

OUR HISTORY – OUR ROOTS EMPOWER US

ACDelco has been at the forefront of automotive innovation since the birth of GM in 1908. Since then, we’ve helped a woman fly around the world and a man traverse the surface of the moon.

However, our history isn’t half as promising as our future. We continue forward with GM Genuine Parts by our side. From the assembly line to the finish line, we’re building innovation and improvement on a foundation of GM Original Equipment.

GM Genuine Parts and ACDelco are proud to work together as the only source for true General Motors Original Equipment and aftermarket parts – past, present and future.

Product Description

ACDelco GM Original Equipment A/C Orifice Tubes, which separate the high and low pressure sides of the air conditioning system, control the flow of low pressure liquid refrigerant into the evaporator. The orifice tube is essentially a calibrated restriction located at the inlet to the evaporator. This causes the necessary pressure drop to allow the liquid refrigerant to evaporate within the evaporator and absorb heat. Since the orifice tube is fixed, the system is regulated by either cycling the compressor clutch or by a variable displacement compressor. This original equipment orifice tube is a GM-recommended replacement for your vehicle’s original components and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product information

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Warranty & Support

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GM Genuine Parts 15-5378 Air Conditioning Orifice Tube


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    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    2,058 global ratings

    Customers say

    Customers like the fit, value, quality and performance of the hardware tubing. They mention that it fits perfectly, it saves money and that it works well.

    AI-generated from the text of customer reviews

    49 customers mention41 positive8 negative

    Customers like the fit of the hardware tubing. They mention that it fits perfectly, works as advertised, and slides right in.

    "Perfect, OEM Product. Fit perfect and exact same size as what was replaced. Thank You" Read more

    "Excellent fit and a/c is ice cold............" Read more

    "Fits and works like it should on my 1991 c1500" Read more

    "...It fit and works great but I think I can find it locally for less or about the same price and would rather do so for one reason...." Read more

    38 customers mention38 positive0 negative

    Customers are satisfied with the performance of the hardware tubing. They mention that it works well, is a direct replacement, and has no issues. Some say that it keeps the internal AC system working properly.

    "Good price and worked well on my Tahoe. Fast shipping." Read more

    "worked good" Read more

    "...your AC system up or do any service it’s cheap and keeps the internal AC system working properly" Read more

    "Works good!Previously my compressor blew upClogged the orfice tubeAfter overhaulingIt shot up to 300psi...." Read more

    35 customers mention35 positive0 negative

    Customers are satisfied with the quality of the hardware tubing. They mention it's a good product, a perfect OEM replacement, and delivered as promised.

    "...Overall I'm satisfied wit the quality of this AC Delco part, and recommend it to any one planning to work an air conditioning system...." Read more

    "Perfect, OEM Product. Fit perfect and exact same size as what was replaced. Thank You" Read more

    "...Anyways, looks to be a good orifice tube." Read more

    "...High oem quality item." Read more

    25 customers mention25 positive0 negative

    Customers are satisfied with the value of the hardware tubing. They mention that it is easy to change, saves money, and works perfect.

    "Good price and worked well on my Tahoe. Fast shipping." Read more

    "Replace anytime your open your AC system up or do any service it’s cheap and keeps the internal AC system working properly" Read more

    "Great value" Read more

    "It was easy to install and the price was very reasonable" Read more

    5 customers mention3 positive2 negative

    Customers are mixed about the ease of installation of the hardware tubing. Some mention it's easy to install, while others say it'll be frustrating and time consuming to try and fish it out.

    "It was easy to install and the price was very reasonable" Read more

    "...It is very frustrating and can be time consuming to try and fish it out, more so if it happens to break inside the tube so I opted to go straight..." Read more

    "Easy install" Read more

    "It was a great price,, not as easy as I thought, but I got it done, & my AC works better than it ever has!" Read more

    Original AC Delco part, perfect fit for 2003 Yukon XL with rear AC
    5 Stars
    Original AC Delco part, perfect fit for 2003 Yukon XL with rear AC
    The orifice tube Is a very low priced component but it is also an extremely important part of the AC system. It serves two purposes, it filters out most contaminants from the oil and liquid refrigerant and also provides the correct pressure differential that is crucial to the proper and efficient performance of an air conditioning system.A partially clogged orifice tube will not provide the proper reduction of refrigerant pressure which will translate in inefficient cooling of passenger compartment air and increased strain on the compressor and other components. A severely or completely obstructed orifice tube will inevitably result in compresor failure.Before recharging your AC system always replace the orifice tube, the few "extra" dollars spent and minimal additional repair work will go a long way towards ensuring the system operates as efficiently as it can operate and lasts as long as it should last.This orifice tube fit my 2003 GMC Yukon XL with rear AC perfectly. I understand there are two different sizes of orifice tubes and newer or different trucks use the "2nd design", which is larger in diameter.The outside diameter of the AC line where the (1st design) orifice tube is housed on my truck is exactly .500", if the line is larger than that, it means it takes the "2nd design" orifice tube.Overall I'm satisfied wit the quality of this AC Delco part, and recommend it to any one planning to work an air conditioning system.I have attached a picture of the orifice tube removed, which shows significant obstruction caused by very fine metal shavings.An important word of caution, i f you intent to work on your AC and if the system is still pressurized, please take it to a professional shop an have the system purged or drained by a professional certified technician using the correct equipment and procedures.
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    Top reviews from the United States

    Reviewed in the United States on June 22, 2017
    Customer image
    5.0 out of 5 stars Original AC Delco part, perfect fit for 2003 Yukon XL with rear AC
    Reviewed in the United States on June 22, 2017
    The orifice tube Is a very low priced component but it is also an extremely important part of the AC system. It serves two purposes, it filters out most contaminants from the oil and liquid refrigerant and also provides the correct pressure differential that is crucial to the proper and efficient performance of an air conditioning system.
    A partially clogged orifice tube will not provide the proper reduction of refrigerant pressure which will translate in inefficient cooling of passenger compartment air and increased strain on the compressor and other components. A severely or completely obstructed orifice tube will inevitably result in compresor failure.
    Before recharging your AC system always replace the orifice tube, the few "extra" dollars spent and minimal additional repair work will go a long way towards ensuring the system operates as efficiently as it can operate and lasts as long as it should last.
    This orifice tube fit my 2003 GMC Yukon XL with rear AC perfectly. I understand there are two different sizes of orifice tubes and newer or different trucks use the "2nd design", which is larger in diameter.
    The outside diameter of the AC line where the (1st design) orifice tube is housed on my truck is exactly .500", if the line is larger than that, it means it takes the "2nd design" orifice tube.
    Overall I'm satisfied wit the quality of this AC Delco part, and recommend it to any one planning to work an air conditioning system.
    I have attached a picture of the orifice tube removed, which shows significant obstruction caused by very fine metal shavings.
    An important word of caution, i f you intent to work on your AC and if the system is still pressurized, please take it to a professional shop an have the system purged or drained by a professional certified technician using the correct equipment and procedures.
    Images in this review
    Customer image
    Customer image
    24 people found this helpful
    Report
    Reviewed in the United States on August 30, 2023
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    Reviewed in the United States on November 19, 2016
    73 people found this helpful
    Report
    Reviewed in the United States on July 17, 2023
    Customer image
    5.0 out of 5 stars Fits 99 silverado 5.3, 03 Tahoe 5.3 w/ rear AC
    Reviewed in the United States on July 17, 2023
    Works good!
    Previously my compressor blew up
    Clogged the orfice tube

    After overhauling
    It shot up to 300psi.

    After changing out,
    I have no complaints.
    Images in this review
    Customer image
    Customer image