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Shop By Brand

The Following brands are available based on your search.

  • Bosal
    Bosal
  • DEC
    DEC
  • Davico Converters
    Davico Converters
  • Eastern Catalytic
    Eastern Catalytic
  • Magnaflow
    Magnaflow
  • Walker
    Walker

Best Selling Genuine Mazda Catalytic Converters

  • We Stock the following top leading brands, including Eastern Catalytic, Magnaflow
  • Constantly Updated Inventory of Mazda Replacement Catalytic Converter Parts

We stock Catalytic Converter parts for most Mazda models, including B2200, B2300, B2600, B3000, CX7, CX9, MPV, MX6, Miata, Millenia, Protege, Protege5, RX7, RX8, Tribute, 3, 5, 6, 626.

Eastern Catalytic
Qty:
$69.31
Eastern Catalytic Catalytic Converter  Front
  • Federal / EPA Semi-Universal Converter - ECO II
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • UNIVERSAL
  • Product Attributes:
    • Air Tube Qty: None
    • Body Length (IN): 10"
    • Catalyst Type: Eco Ii
    • Inlet Gasket Qty: None
    • Inlet Hardware: None
    • Inlet Type A: 2.25" Id
    • O2 Sensor Ports: None
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2.25" Id
    • Overall Length (IN): 14"
    • Test Weight: 3.8 / 4250
  • Proprietary ECO II NANO substrate chemistry is designed to be effective on most complex or second-generation on board diagnostics (OBD II) systems and yields highly efficient loadings for lower cost and better converter efficiency. Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology helps to maintain industry-leading efficiency, productivity, and competitive prices.
Brand: Eastern Catalytic
Position: Front
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Mazda Miata Front L 4 Cyl 1.8L - 1839
Eastern Catalytic
Qty:
$69.31
Eastern Catalytic Catalytic Converter  Front
  • Federal / EPA Semi-Universal Converter - ECO II
  • Federal Emissions; Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • UNIVERSAL
  • Product Attributes:
    • Air Tube Qty: None
    • Body Length (IN): 10"
    • Catalyst Type: Eco Ii
    • Inlet Gasket Qty: None
    • Inlet Hardware: None
    • Inlet Type A: 2.25" Id
    • O2 Sensor Ports: None
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2.25" Id
    • Overall Length (IN): 14"
    • Test Weight: 3.8 / 4250
  • Proprietary ECO II NANO substrate chemistry is designed to be effective on most complex or second-generation on board diagnostics (OBD II) systems and yields highly efficient loadings for lower cost and better converter efficiency. Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology helps to maintain industry-leading efficiency, productivity, and competitive prices.
Brand: Eastern Catalytic
Position: Front
Additional Fitment Information:
Vehicle Transmission Position Block Engine CID CC
2000 - Mazda Miata Automatic Front L 4 Cyl 1.8L - 1839
Eastern Catalytic
2008 Mazda RX-8 Catalytic Converter 2 Cyl 1.3L Eastern Catalytic - DIRECT FIT

P311-02C6748    40743  New

Qty:
$285.78
Eastern Catalytic Catalytic Converter
  • Federal / EPA Direct-fit Converter Assembly
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Iii
    • Inlet Hardware: None
    • Inlet Type A: 3 Bolt Welded
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2 Bolt Welded
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Additional Fitment Information:
Vehicle Submodel Block Engine CID CC
2008 - Mazda RX-8 40th Anniversary Edition R 2 Cyl 1.3L - 1308
Magnaflow
Qty:
$187.21
Magnaflow Catalytic Converter  Front
  • Universal Catalytic Converter - 2.00in.
  • Certification Level : TLEV OE Spec Cutting and welding required during installation
  • 2in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Series: California
    • Substrate Material: Ceramic
    • Title: Universal Converter
Brand: Magnaflow
Position: Front
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1996 - Mazda MX-6 Front L 4 Cyl 2.0L - 1991
Magnaflow
Qty:
$107.12
Magnaflow Catalytic Converter  Rear
  • Universal Catalytic Converter - 2.00in.
  • Certification Level : LEV1 LEV OE Spec Cutting and welding required during installation
  • 2in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Series: California
    • Substrate Material: Ceramic
    • Title: Universal Converter
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2000 - Mazda Protege Rear L 4 Cyl 1.8L - 1839
Magnaflow
Qty:
$107.12
Magnaflow Catalytic Converter  Rear
  • Universal Catalytic Converter - 2.00in.
  • Certification Level : TLEV OE Spec Cutting and welding required during installation
  • 2in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Series: California
    • Substrate Material: Ceramic
    • Title: Universal Converter
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2001 - Mazda Protege Rear L 4 Cyl 2.0L - 2000
Magnaflow
1995 Mazda B3000 Catalytic Converter 6 Cyl 3.0L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-2F9E7BD    441116  New

F77Z 5E212-LB , F77Z 5E212-NB , F57Z 5E212-E , F57Z 5E212-B , ZZN1-20-500 , ZZM8-20-500 , ZZM9-20-500

Qty:
$507.26
Magnaflow Catalytic Converter
  • Direct-Fit Catalytic Converter
  • Certification Level : TIER1
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Overall Length: 34.75
    • Series: California
    • Substrate Material: Ceramic
    • Title: Direct-fit Converter
Brand: Magnaflow
Additional Fitment Information:
Vehicle Block Engine CID CC
1995 - Mazda B3000 V 6 Cyl 3.0L 182 2986
Magnaflow
Qty:
$107.12
Magnaflow Catalytic Converter  Rear
  • Universal Catalytic Converter - 2.00in.
  • Certification Level : TIER1 OE Spec Cutting and welding required during installation
  • 2in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Series: California
    • Substrate Material: Ceramic
    • Title: Universal Converter
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1999 - Mazda 626 Rear L 4 Cyl 2.0L - 1991
Magnaflow
1999 Mazda Miata Catalytic Converter - Rear 4 Cyl 1.8L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-250E802    441771  New

BP4Y-20-55XF , BP4Z-20-55XF

Qty:
$345.34
Magnaflow Catalytic Converter  Rear
  • Direct-Fit Catalytic Converter
  • Certification Level : TLEV
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Main Piping Diameter: 2.25
    • Overall Length: 26.75
    • Series: California
    • Substrate Material: Ceramic
    • Title: Direct-fit Converter
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1999 - Mazda Miata Rear L 4 Cyl 1.8L - 1839
Magnaflow
2000 Mazda Miata Catalytic Converter - Rear 4 Cyl 1.8L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-250E802    441771  New

BP4Y-20-55XF , BP4Z-20-55XF

Qty:
$345.34
Magnaflow Catalytic Converter  Rear
  • Direct-Fit Catalytic Converter
  • Certification Level : LEV1 LEV
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Main Piping Diameter: 2.25
    • Overall Length: 26.75
    • Series: California
    • Substrate Material: Ceramic
    • Title: Direct-fit Converter
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2000 - Mazda Miata Rear L 4 Cyl 1.8L - 1839

Latest Mazda Repair and Catalytic Converter Installation Advice

CarJunky AutoAdvice

2003 mazda 6 catalytic converter

Showing 6 out of 6 Posts
Question From Guest on 2003 mazda 6 catalytic converter

I had the car in a mechanic did a dianostic came up as catalytic converters

Response From Guest

my check engine light just came on, i took it to the dealership and they told me my rear converter was bad. i ask them rear?.. b/c i didnt see anything back there. they told it its located in the front on the intakeM/fold..all i see is one directly in the center of the car.. how many catalytic converters does 2003 mazda6 3.o have?

Response From Loren Champlain Sr

According to my database, this vehicle may have three cats. One upstream, and two downstream (left and right).

Response From Hammer Time

The last 2 posters here that are asking about different vehicles need to start a question of your own for this please.

Response From Double J Top Rated Answer

Whats your question/concern?

Tell us what symptoms you have with the vehicle
What trouble codes are stored.

Response From Guest

If anyone else is reading this, I need the catalytic conv. replaced. I was quoted 700 for a shop that is including the 2 new O2 Sensors. Is there anyway around this? The car is a 2003 Mazda 6S has 156,000 miles. The car has been great, so I don't mind fixing it, or this might be the end of the road for the car. Thanx for any help. Dan

catalytic converter

Showing 2 out of 2 Posts
Question From carman on catalytic converter

HELP--1991 mazda-B2200 300000kms i had the engine rebuilt(lots of carbon) i removed the insides of the catalytic-converter(at the exhaust manifold)now the engine has twice the power but runs poorly a very rich condition to much fuel-black spark plugs i adjusted the carbs float level(at sight glass) help very little--please help--is there a way to leanout the fuel/air mixture

Response From HYdrogen_on_Demand Top Rated Answer

Yes, and it doesn't require a new cat either. Go to link removed by moderator. wrong forum again.and read up on how to fix all the problems you just listed !!

PO420 Catalytic converter faulty- Bank 1 | What could it be?

Showing 4 out of 6 Posts | Show 2 Hidden Posts
Question From protege1.6 on PO420 Catalytic converter faulty- Bank 1 | What could it be?

Hi there,

So I have a Mazda protege 1.6L engine Year 2000.

I am getting the fault code: PO402 Catalytic converter faulty- Bank 1

Does this automatically mean my Cat is broken?

What is bank 1?

How do I know it ain't the 02 sensors?

There aren't any leaks I just put a sleeve on the front exhaust, new plugs.

Some welding was done on the front pipe near the Cat.

Please help Thank You.



Response From Discretesignals Top Rated Answer

Do you mean P0420?

It is a 4 cylinder so it has only 1 bank on that engine. If you have any other codes, the engine is running bad (misfiring), engine burns oil or coolant, it has exhaust leaks, and/or there are technical service bulletins related to the P0420 that haven't been addressed, you need to address those first before condemning the catalyst.

Response From protege1.6


Do you mean P0420?

It is a 4 cylinder so it has only 1 bank on that engine. If you have any other codes, the engine is running bad (misfiring), engine burns oil or coolant, it has exhaust leaks, and/or there are technical service bulletins related to the P0420 that haven't been addressed, you need to address those first before condemning the catalyst.





You know I have a spare 02 sensor, I think I will put that in and see if that clears the code.

BUT

What are the definitive signs/symptoms that it is the cat converter? as opposed to the 02 sensors?

Response From Discretesignals

Without scan tool data, emission gas analyzer test results, and some O2 response wave forms, your just throwing parts at it. Also like a mentioned if the engine isn't running right, you have exhaust leaks, or the engine is burning coolant or oil, your wasting your time diagnosing a catalyst code.

Response From protege1.6


Do you mean P0420?

It is a 4 cylinder so it has only 1 bank on that engine. If you have any other codes, the engine is running bad (misfiring), engine burns oil or coolant, it has exhaust leaks, and/or there are technical service bulletins related to the P0420 that haven't been addressed, you need to address those first before condemning the catalyst.






http://www.aa1car.com/library/p0420_dtc.htm

Response From protege1.6

Thank You for the reply,




That is the only code, and note that it appears intermittently.

Further suggestions?

P0420 Geo and Mazda

Showing 2 out of 2 Posts
Question From comnavguy on P0420 Geo and Mazda

Both of these cars, each in excess of 130,000 miles, is showing code 0420 "catalyst efficiency below threshold Bank 1"

Is that the catalytic converter? The question comes from one lady just replaced the converter a year ago.

Neither vehicle shows any codes for the 02 sensors.

Response From Hammer Time Top Rated Answer

95% of the time, that is a bad Converter. If she just had hers replaced, then it is under warranty. They carry a mandatory 5yr/50K