How to remove and replace the EGR valve on Mazda 3?

Take out the battery cover and unattach the cable on the negative battery terminal. Then lift the upper engine cover by lifting it by both ends and out of the mounting posts in the middle. Cooling system Drain the cooling system, and then take out ducts of air intake, and air filter housing. Unfit the electrical connector with the EGR valve, unclamp the coolant hose and loosen the upper radiator hose with the outlet passage of coolant. Attach the clamp and loosen the coolant hose on the EGR valve, remove the two EGR valve mounting bolts and remove the EGR valve. Disregard the EGR valve gasket and clean the mating surfaces of the cylinder head and the EGR valve. To install, undo the process of removal, making sure to install a new EGR valve gasket and screw the EGR valve mounting bolts. Lastly, replace the coolant system.

How to remove and install the EGR valve on Mazda 6?

In the case of 4-cylinder models, the EGR valve is mounted at the left end of the cylinder head, behind the throttle body. Disconnect the cable with negative battery terminal and drain the cooling system including removing the upper radiator hose on models with 2.5L. The second step is to take out the air cleaner duct and housing and the third one is to detach the electrical connector of the EGR valve. On 2.3L engines, loosen the hose clamp of the coolant hose, and disconnect the upper radiator hose to the passage of coolant outlet, loosen the clamp of the coolant hose and disconnect to the EGR valve. Unscrew the two EGR valve mounting bolts and remove the EGR valve, removing the old gasket and cleaning the surfaces of the two parts. The opposite of the removal is installation, a new gasket is used and the mounting bolts are tightened properly, the cooling system is refilled. On 3.0L V6 models, the EGR valve will be found on the left end of the intake manifold, next to the throttle body. Begin by removing the cable connection to negative battery terminal, removal of electrical connector and vacuum hose connection to EGR valve. Unscrew tube nut that attaches the EGR pipe to the EGR valve, remove the mounting bolts and remove the EGR valve. Wipe away the old gasket and clean the mating surfaces then invert the removal process to install attaching a new gasket and then twisting the mounting nuts.

Genuine Mazda EGR Valve

Emissions EGR Valve

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91 EGR Valves found

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Mazda Solenoid Valve Part Number: L3P9-18-740B
$54.78 MSRP: $73.04
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Product Specifications
- Other Name: Valve, Solenoid
- Replaces: L3P9-18-740, L3P9-18-740A
Fits the following Mazda Models:
- 6 | 2006-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Solenoid Part Number: L518-18-741
$61.90 MSRP: $82.55
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Product Specifications
- Other Name: Valve, Solenoid; Solenoid
Fits the following Mazda Models:
- 3 | 2010-2013 | Mazdaspeed | 4 Cyl 2.3 L GAS
- 5 | 2012-2015 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- 6 | 2009-2013 | i | 4 Cyl 2.5 L GAS
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Mazda EGR Valve Part Number: 1F22-20-300
$60.25 MSRP: $80.35
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Fits the following Mazda Models:
- B4000 | 2001-2009 | Base, DS, SE | 6 Cyl 4.0 L GAS
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Mazda EGR Valve Part Number: AJ03-20-300B
$63.35 MSRP: $84.48
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Product Specifications
- Replaces: AJ03-20-300, AJ03-20-300A
Fits the following Mazda Models:
- Tribute | 2001-2006 | DX, ES, LX, S | 6 Cyl 3.0 L GAS
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Mazda Solenoid Valve Part Number: LF82-18-740
$75.10 MSRP: $100.15
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Product Specifications
- Other Name: Valve, Solenoid; Solenoid Valve
Fits the following Mazda Models:
- 3 | 2004-2013 | i, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- 5 | 2012-2015 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- 6 | 2009-2013 | i | 4 Cyl 2.5 L GAS
- CX-7 | 2010-2012 | Sport, SV, Touring | 4 Cyl 2.5 L GAS
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Mazda Solenoid Valve Part Number: BP5W-18-741
$78.33 MSRP: $104.46
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Product Specifications
- Other Name: Valve, Solenoid
Fits the following Mazda Models:
- Miata | 2002-2005 | Base, LS, Mazdaspeed, SE, Shinsen | 4 Cyl 1.8 L GAS
- Protege | 1999-2001 | DX, LX | 4 Cyl 1.6 L GAS
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Mazda Valve Part Number: FS05-18-741
$96.28 MSRP: $128.39
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Product Specifications
- Other Name: Valve 3Way
Fits the following Mazda Models:
- 626 | 1993-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MPV | 1992-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
- MX-6 | 1993-1997 | Base | 4 Cyl 2.0 L GAS
- Miata | 1994-1997 | Base, M Edition, STO | 4 Cyl 1.8 L GAS
- Millenia | 1995-2002 | Base, L, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
- Protege | 1998-2003 | DX, ES, LX, Mazdaspeed, MP3 | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Solenoid Valve Part Number: L3K9-18-740B
$101.53 MSRP: $135.39
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Product Specifications
- Other Name: Valve, Solenoid
- Replaces: L3K9-18-740A, L3K9-18-740
Fits the following Mazda Models:
- 3 | 2007-2009 | Mazdaspeed, S | 4 Cyl 2.3 L GAS
- 6 | 2006-2007 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Solenoid Valve Part Number: KLG5-18-741
$103.23 MSRP: $137.66
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Product Specifications
- Other Name: Valve, Solenoid
Fits the following Mazda Models:
- 626 | 1998-2002 | ES, LX | 6 Cyl 2.5 L GAS
- Miata | 2000-2005 | Base, LS, Mazdaspeed, SE, Shinsen | 4 Cyl 1.8 L GAS
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Mazda Solenoid Valve Part Number: K801-18-741
$115.58 MSRP: $154.14
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Product Specifications
- Other Name: Valve, Solenoid; Check Valve
Fits the following Mazda Models:
- 626 | 1998-2002 | ES, LX | 6 Cyl 2.5 L GAS
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Mazda Solenoid Part Number: L301-18-741
$120.48 MSRP: $160.67
You Save: $40.19 (26%)
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Product Specifications
- Other Name: Valve & Switch; Solenoid
- Replaces: L801-18-741
Fits the following Mazda Models:
- 3 | 2004-2009 | Mazdaspeed, S, SP23 | 4 Cyl 2.3 L GAS
- 5 | 2006-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
- 6 | 2003-2008 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
- Tribute | 2008-2011 | Hybrid, i | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Solenoid Valve Part Number: L321-18-740C
$130.79 MSRP: $174.42
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Product Specifications
- Other Name: Valve, Solenoid
- Replaces: L321-18-740A, L321-18-740B
Fits the following Mazda Models:
- 6 | 2003-2005 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda EGR Valve Part Number: PX1P-20-300A
$153.38 MSRP: $204.54
You Save: $51.16 (26%)
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Product Specifications
- Other Name: Valve, E.G.R.; EGR Valve
- Replaces: PX1P-20-300
Fits the following Mazda Models:
- CX-30 | 2021-2023 | 2.5 Turbo | 4 Cyl 2.5 L GAS
- CX-50 | 2023-2024 | 2.5 Turbo | 4 Cyl 2.5 L GAS
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Mazda Valve Part Number: KL01-18-741
$138.54 MSRP: $184.76
You Save: $46.22 (26%)
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Product Specifications
- Other Name: Valve, Solenoid; Valve
Fits the following Mazda Models:
- 626 | 1998-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Millenia | 1997 | Base, L | 6 Cyl 2.5 L GAS
- Protege | 1999-2003 | DX, ES, LX, Mazdaspeed, MP3 | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
- RX-8 | 2004-2008 | 40th Anniversary Edition, Base, Grand Touring, Shinka, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Solenoid Valve Part Number: BP4Y-18-741
$142.39 MSRP: $189.88
You Save: $47.49 (26%)
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Product Specifications
- Other Name: Valve, Solenoid W/O Bracket; Check Valve, Purge Solenoid
Fits the following Mazda Models:
- 6 | 2006-2008 | S | 6 Cyl 3.0 L GAS
- 626 | 1998-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MPV | 2002-2006 | ES, LX, LX-SV | 6 Cyl 3.0 L GAS
- Miata | 1999-2003 | 10th Anniversary, Base, LS, SE, Shinsen | 4 Cyl 1.8 L GAS
- Protege | 1999-2001 | DX, ES, LX, MP3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Mazda EGR Valve Part Number: LFHJ-20-300
$192.58 MSRP: $256.82
You Save: $64.24 (26%)
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Product Specifications
- Other Name: Valve, E.G.R.
Fits the following Mazda Models:
- 3 | 2012-2013 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 5 | 2012-2015 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- 6 | 2013 | i | 4 Cyl 2.5 L GAS
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Mazda EGR Valve Part Number: LFE2-20-300C
$303.08 MSRP: $404.18
You Save: $101.10 (26%)
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Product Specifications
- Other Name: Valve, E.G.R.
- Replaces: LFE2-20-300A, LFE2-20-300
Fits the following Mazda Models:
- 2 | 2011-2014 | Sport, Touring | 4 Cyl 1.5 L GAS
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
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Mazda Alternator Part Number: B6BF-20-300-9U
$290.39 MSRP: $387.26
You Save: $96.87 (26%)
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Product Specifications
- Other Name: EGR Valve; Alternator, Drive Shaft, Front Wiper Switch
- Replaces: B6BF-20-300, Z505-20-300
Fits the following Mazda Models:
- 323 | 1991 | Base, SE | 4 Cyl 1.6 L GAS
- 626 | 1991-1992 | DX, GT, LE, LX | 4 Cyl 2.2 L GAS
- MX-3 | 1994-1995 | Base | 4 Cyl 1.6 L GAS
- MX-6 | 1991-1992 | DX, GT, LE, LX | 4 Cyl 2.2 L GAS
- Miata | 1994-1997 | Base, M Edition, STO | 4 Cyl 1.8 L GAS
- Protege | 1995-1996, 1991 | 4WD, DX, ES, LX | 4 Cyl 1.5 L GAS, 4 Cyl 1.8 L GAS
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Mazda EGR Valve Part Number: P5TA-20-3C0
$339.13 MSRP: $452.26
You Save: $113.13 (26%)
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Product Specifications
- Other Name: Valve, EGR Control; EGR Valve
- Replaced by: P5TA-20-3C0A
Fits the following Mazda Models:
- CX-30 | 2023 | 2.5 S, 2.5 S Carbon Edition | 4 Cyl 2.5 L GAS
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Mazda EGR Valve Part Number: P5TA-20-3C0A
$339.13 MSRP: $452.26
You Save: $113.13 (26%)
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Product Specifications
- Other Name: Valve, EGR Control; EGR Valve
- Replaces: P5TA-20-3C0
Fits the following Mazda Models:
- CX-30 | 2023 | 2.5 S, 2.5 S Carbon Edition | 4 Cyl 2.5 L GAS

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1-20 of 91 Results

Mazda EGR Valve

The Mazda EGR Valve lowers harmful nitrogen oxide emissions while letting the engine keep its lively character, a smart piece that reflects the brand's balance of efficiency and fun. Mazda vehicles stand out with graceful Kodo styling, responsive Skyactiv engines, and i-Activsense features that watch the road and support confident driving. From compact hatchbacks to roomy SUVs, Mazda mixes light bodies, precise steering, and growing electric assistance to create cars that feel eager on backroads yet calm in daily traffic. Durable build quality, inventive rotary heritage, and careful attention to cabin comfort help Mazda earn loyalty from drivers who value both performance and practicality. Equally important, the EGR Valve complements every gasoline or diesel powerplant in the lineup by rerouting a measured portion of exhaust into the intake, cooling combustion, and trimming fuel use under part-throttle loads. Earlier vacuum-based versions worked well, but the updated electronically controlled EGR Valve reacts quicker and meters flow in tiny steps, so the engine idles smoothly and delivers full power when demanded. Because it reduces peak flame temperature, the valve cuts pollutants before they reach the catalytic converter, extending component life and helping all Mazda models meet strict global standards without sacrificing the signature zoom-zoom feel.

You'll get great performance and real durability when you pick genuine OEM EGR Valve. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda EGR Valve Parts and Q&A

Solenoid
L518-18-741
Q: How to remove and replace the EGR valve on Mazda 3?
A:
Take out the battery cover and unattach the cable on the negative battery terminal. Then lift the upper engine cover by lifting it by both ends and out of the mounting posts in the middle. Cooling system Drain the cooling system, and then take out ducts of air intake, and air filter housing. Unfit the electrical connector with the EGR valve, unclamp the coolant hose and loosen the upper radiator hose with the outlet passage of coolant. Attach the clamp and loosen the coolant hose on the EGR valve, remove the two EGR valve mounting bolts and remove the EGR valve. Disregard the EGR valve gasket and clean the mating surfaces of the cylinder head and the EGR valve. To install, undo the process of removal, making sure to install a new EGR valve gasket and screw the EGR valve mounting bolts. Lastly, replace the coolant system.
Solenoid Valve
ZM03-18-741
Q: How to remove and install the EGR valve on Mazda 6?
A:
In the case of 4-cylinder models, the EGR valve is mounted at the left end of the cylinder head, behind the throttle body. Disconnect the cable with negative battery terminal and drain the cooling system including removing the upper radiator hose on models with 2.5L. The second step is to take out the air cleaner duct and housing and the third one is to detach the electrical connector of the EGR valve. On 2.3L engines, loosen the hose clamp of the coolant hose, and disconnect the upper radiator hose to the passage of coolant outlet, loosen the clamp of the coolant hose and disconnect to the EGR valve. Unscrew the two EGR valve mounting bolts and remove the EGR valve, removing the old gasket and cleaning the surfaces of the two parts. The opposite of the removal is installation, a new gasket is used and the mounting bolts are tightened properly, the cooling system is refilled. On 3.0L V6 models, the EGR valve will be found on the left end of the intake manifold, next to the throttle body. Begin by removing the cable connection to negative battery terminal, removal of electrical connector and vacuum hose connection to EGR valve. Unscrew tube nut that attaches the EGR pipe to the EGR valve, remove the mounting bolts and remove the EGR valve. Wipe away the old gasket and clean the mating surfaces then invert the removal process to install attaching a new gasket and then twisting the mounting nuts.