How does the A/C Expansion Valve facilitate the conversion of high-pressure liquid refrigerant to lower-pressure vapor in air conditioning systems on Mazda 3?

Air conditioning systems move the high pressure liquid refrigerant in the compressor to lower pressure vapor in the evaporator which is chilled as the refrigerant flows through the system and cools the air that flows into the vents. This is normally done through a sudden change of tubing size, and most vehicles have a removable controlled orifice in one of the AC pipes in the firewall. The mentioned models employ the use of an A/C Expansion Valve which functions in a similar way as a controlled orifice. An automotive air conditioning technician will need to empty out the air conditioning system first to replace the A/C Expansion Valve. The refrigerant lines must be disconnected at the HVAC unit after discharging, then the two bolts holding the valve to the evaporator can be removed allowing the valve to be removed.

How to properly remove and replace the A/C Evaporator Core and A/C Expansion Valve in an air conditioning system on Mazda Protege?

Start with the release and recovery of the refrigerant by a qualified repair facility. Disconnect the air conditioning lines at the firewall (with a backup wrench to avoid damaging the fittings) and cap the open fittings with a cap after dismantling to avoid air or dirt getting inside. Take out the glove box cover, side panel, and under dash panel on the passenger side. In the case of models between 1995 and 1998, delete the cooling unit duct and the wire connecting the blower unit and the air intake. Remove the electrical connector(s) of the A/C Evaporator Core and unlock the seal plates on each side of the A/C Evaporator Core. Loosen the mounting studs of the firewall with the nuts of the A/C Evaporator Core and then attach the A/C Evaporator Core. Disassemble the lower and upper cooling unit housings by taking out the clips of the cooling unit housing, then take out the A/C Evaporator Core. Unattachment of expansion valve fittings and taking out the expansion valve out of the A/C Evaporator Core is required, and the fittings of the expansion valve must be capped immediately to prevent the expansion valve from being exposed to moisture and contamination. To do this, where required, on models with air conditioning from 1990 to 1994, take out the air conditioning thermoswitch in the upper cooling unit housing; on models with air conditioning from 1995 or later, take out the thermoswitch in the A/C Evaporator Core and fit it in the same position. Inspect the A/C Evaporator Core and fittings by checking for cracking or damage, replacing the A/C Evaporator Core as required. Recover the expansion valve, with the gaskets and tightening the inlet and outlet fittings. Removal is the converse of the system installation, where it is always ensured to remove any O-rings and replace them with new ones depending on the type of refrigerant in your system, and lubricate them with refrigerant oil before fitting. Lastly, make sure the system gets emptied, refilled, and sealed by the shop it was emptied by, and in case of a new A/C Evaporator Core, add new refrigerant oil to the high-pressure side of the compressor, but only with oil that is compatible with your system.

Genuine Mazda A/C Expansion Valve

Air Conditioning Expansion Valve

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39 A/C Expansion Valves found

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Mazda Expansion Valve Part Number: VA54-61-J14
$19.25 MSRP: $25.67
You Save: $6.42 (26%)
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- CX-50 | 2023-2024 | 2.5 S, 2.5 Turbo | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: BDTS-61-J14
$44.71 MSRP: $59.63
You Save: $14.92 (26%)
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- 3 | 2019-2023 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CX-30 | 2020-2021 | 2.5 S, 2.5 Turbo, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: N243-61-J14
$50.45 MSRP: $67.28
You Save: $16.83 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- MX-5 Miata | 2016-2023 | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda Expansion Valve Part Number: BJS7-61-J14
$52.55 MSRP: $70.08
You Save: $17.53 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 3 | 2014-2018 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: BDEL-61-J14
$53.91 MSRP: $71.90
You Save: $17.99 (26%)
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: KD45-61-J14
$66.89 MSRP: $89.20
You Save: $22.31 (26%)
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- 6 | 2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-5 | 2021-2024 | 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition, Carbon Edition Turbo, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: D09W-61-J14
$81.49 MSRP: $108.68
You Save: $27.19 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- CX-3 | 2016-2021 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
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Mazda Expansion Valve Part Number: KF03-61-J14
$86.91 MSRP: $115.91
You Save: $29.00 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 3 | 2014-2018 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2014-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-5 | 2013-2021 | Carbon Edition, Carbon Edition Turbo, Grand Select, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L DIESEL, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: CE43-61-J14
$89.53 MSRP: $119.40
You Save: $29.87 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 5 | 2012-2015 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: DGK9-61-J14
$90.54 MSRP: $120.74
You Save: $30.20 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CX-30 | 2021-2023 | 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: GJ6A-61-J14B
$94.60 MSRP: $126.16
You Save: $31.56 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 6 | 2006-2007 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- CX-7 | 2007-2012 | Grand Touring, Sport, SV, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: BDGF-61-J14
$97.33 MSRP: $129.79
You Save: $32.46 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion; Expansion Valve
Fits the following Mazda Models:
- 3 | 2019-2023 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: GS1D-61-J14
$101.49 MSRP: $135.35
You Save: $33.86 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 2 | 2011-2014 | Sport, Touring | 4 Cyl 1.5 L GAS
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Mazda Expansion Valve Part Number: CE49-61-J14A
$101.71 MSRP: $135.64
You Save: $33.93 (26%)
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Product Specifications
- Other Name: Valve, Expansion
- Replaces: CE49-61-J14
Fits the following Mazda Models:
- 5 | 2008-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
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Mazda Expansion Valve Part Number: BBP2-61-J14
$103.13 MSRP: $137.53
You Save: $34.40 (26%)
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- 3 | 2010-2013 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: BP4K-61-J14A
$104.60 MSRP: $139.49
You Save: $34.89 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion
- Replaces: BP4K-61-J14
Fits the following Mazda Models:
- 3 | 2004-2009 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 5 | 2006-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
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Mazda Expansion Valve Part Number: TA01-61-J14
$154.16 MSRP: $205.59
You Save: $51.43 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- Millenia | 1995-2002 | Base, L, Millennium Edition, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: GE7T-61-J14A
$158.93 MSRP: $211.94
You Save: $53.01 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion
- Replaces: GE7T-61-J14
Fits the following Mazda Models:
- Protege | 2001-2003 | DX, ES, LX, Mazdaspeed, MP3 | 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Expansion Valve Part Number: TK48-61-P14
$195.90 MSRP: $261.25
You Save: $65.35 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- CX-9 | 2016-2021 | Carbon Edition, Grand Touring, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Expansion Valve Part Number: N053-61-J14A
$208.85 MSRP: $278.51
You Save: $69.66 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Expansion
Fits the following Mazda Models:
- Miata | 2001-2005 | Base, LS, Mazdaspeed, SE, Shinsen | 4 Cyl 1.8 L GAS

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Mazda A/C Expansion Valve

Every part of the car is important. Your vehicle's performance will be compromised if something goes wrong with the Mazda A/C Expansion Valve. Therefore, for your smooth driving and safety, you need regular checks and timely replacements. Whenever you need replacements, opt for genuine Mazda A/C Expansion Valves. Because they meet the manufacturer's criteria, it guarantees that replacements fit perfectly. Thus, these make better choices for people who care about driving. Why should you shop at MazdaPartsNow.com? We sell genuine Mazda A/C Expansion Valves. In our online catalog, there is a wide range of different parts. These are delivered directly from authorized Mazda dealers only so that customers can be sure of their security throughout any transaction while using our website. Furthermore, you can also quickly search for OEM parts you want because of our user-friendly site navigation. Choose us for a genuine Mazda A/C Expansion Valve that keeps your car running like new.

Mazda A/C Expansion Valve Parts and Q&A

Expansion Valve
BP4K-61-J14A
Q: How does the A/C Expansion Valve facilitate the conversion of high-pressure liquid refrigerant to lower-pressure vapor in air conditioning systems on Mazda 3?
A:
Air conditioning systems move the high pressure liquid refrigerant in the compressor to lower pressure vapor in the evaporator which is chilled as the refrigerant flows through the system and cools the air that flows into the vents. This is normally done through a sudden change of tubing size, and most vehicles have a removable controlled orifice in one of the AC pipes in the firewall. The mentioned models employ the use of an A/C Expansion Valve which functions in a similar way as a controlled orifice. An automotive air conditioning technician will need to empty out the air conditioning system first to replace the A/C Expansion Valve. The refrigerant lines must be disconnected at the HVAC unit after discharging, then the two bolts holding the valve to the evaporator can be removed allowing the valve to be removed.
Expansion Valve
GE7T-61-J14A
Q: How to properly remove and replace the A/C Evaporator Core and A/C Expansion Valve in an air conditioning system on Mazda Protege?
A:
Start with the release and recovery of the refrigerant by a qualified repair facility. Disconnect the air conditioning lines at the firewall (with a backup wrench to avoid damaging the fittings) and cap the open fittings with a cap after dismantling to avoid air or dirt getting inside. Take out the glove box cover, side panel, and under dash panel on the passenger side. In the case of models between 1995 and 1998, delete the cooling unit duct and the wire connecting the blower unit and the air intake. Remove the electrical connector(s) of the A/C Evaporator Core and unlock the seal plates on each side of the A/C Evaporator Core. Loosen the mounting studs of the firewall with the nuts of the A/C Evaporator Core and then attach the A/C Evaporator Core. Disassemble the lower and upper cooling unit housings by taking out the clips of the cooling unit housing, then take out the A/C Evaporator Core. Unattachment of expansion valve fittings and taking out the expansion valve out of the A/C Evaporator Core is required, and the fittings of the expansion valve must be capped immediately to prevent the expansion valve from being exposed to moisture and contamination. To do this, where required, on models with air conditioning from 1990 to 1994, take out the air conditioning thermoswitch in the upper cooling unit housing; on models with air conditioning from 1995 or later, take out the thermoswitch in the A/C Evaporator Core and fit it in the same position. Inspect the A/C Evaporator Core and fittings by checking for cracking or damage, replacing the A/C Evaporator Core as required. Recover the expansion valve, with the gaskets and tightening the inlet and outlet fittings. Removal is the converse of the system installation, where it is always ensured to remove any O-rings and replace them with new ones depending on the type of refrigerant in your system, and lubricate them with refrigerant oil before fitting. Lastly, make sure the system gets emptied, refilled, and sealed by the shop it was emptied by, and in case of a new A/C Evaporator Core, add new refrigerant oil to the high-pressure side of the compressor, but only with oil that is compatible with your system.