How to remove and install the catalytic converter on Mazda 6?

On all engines except the 3.7L V6, the catalytic converters are integral components of the exhaust manifolds and cannot be serviced separately. The catalytic converter is located under the vehicle. Begin by raising the vehicle and placing it securely on jackstands. Locate the downstream oxygen sensor on the upper central part of the catalyst, trace the sensor to its electrical connector, and disconnect it. Unscrew and remove the downstream oxygen sensor from the catalyst. Next, remove the nuts and bolts that secure the flange at the front end of the catalyst to the exhaust down pipe; if the threads are severely damaged or rusted, apply some penetrant to the threads and wait before loosening them. Loosen the fasteners on the clamp that secures the rear end of the catalyst to the exhaust system, and again, if the threads are severely damaged or rusted, apply some penetrant and wait before loosening. Remove the heat shields and take out the catalytic converter. Discard the old gasket between the exhaust down pipe and the catalyst mounting flange. Installation is the reverse of removal, using a new gasket and, if necessary, new fasteners.

Genuine Mazda 6 Catalytic Converter

Cat. Converter

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

33 Catalytic Converters found

View related parts
Mazda 6 Catalytic Converter Part Number: L362-20-55XE
$781.50 MSRP: $1067.83
You Save: $286.33 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: L362-20-55XC, L362-20-55XD, L362-20-55XB, L362-20-55X, L362-20-55XA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: PY1A-20-50XA
$869.57 MSRP: $1188.17
You Save: $318.60 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: PY1A-20-50X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Exhaust Manifold Part Number: PYL2-20-50X
$895.14 MSRP: $1223.12
You Save: $327.98 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Exhaust Manifold Part Number: PY81-20-50X
$908.51 MSRP: $1241.38
You Save: $332.87 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2015-2016 Mazda 6 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Exhaust Pipe Part Number: PYE6-20-55XA
$977.26 MSRP: $1335.32
You Save: $358.06 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Converter & Pipe, Exhaust Pipe
- Replaces: PYE6-20-55X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Exhaust Pipe Part Number: PYL5-20-55XB
$996.80 MSRP: $1362.03
You Save: $365.23 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Converter & Pipe, Exhaust Pipe
- Replaces: PYL5-20-55XA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Exhaust Manifold Part Number: PY47-20-50X
$1015.42 MSRP: $1387.47
You Save: $372.05 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2015 Mazda 6 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L541-20-55XD
$1072.77 MSRP: $1465.83
You Save: $393.06 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2011-2013 Mazda 6 | i | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Converter Part Number: PY8V-13-450L
$1381.25 MSRP: $1887.33
You Save: $506.08 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust; Converter, Exhaust Manifold, Manifold
- Replaces: PY8V-13-450G, PY8V-13-450E, PY8V-13-450J, PY8V-13-450K, PY8V-13-450D, PY8V-13-450H, PY8V-13-450F
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: CA01-20-500A
$1435.39 MSRP: $1961.30
You Save: $525.91 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic; Preconverter
- Replaces: CA01-20-500
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2013 Mazda 6 | S | 6 Cyl 3.7 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: CA01-20-600C
$2174.93 MSRP: $2971.81
You Save: $796.88 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic; Preconverter
- Replaces: CA01-20-600B, CA01-20-600, CA01-20-600A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2013 Mazda 6 | S | 6 Cyl 3.7 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L555-20-55XB
$324.56 MSRP: $432.83
You Save: $108.27 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Replaces: L555-20-55XA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2012-2013 Mazda 6 | i | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L5Y8-20-55XA
$324.73 MSRP: $433.05
You Save: $108.32 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Replaces: L5Y8-20-55X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2011-2012 Mazda 6 | i | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L598-20-55X
$347.56 MSRP: $463.51
You Save: $115.95 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2012-2013 Mazda 6 | i | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L3F1-20-55XB
$497.70 MSRP: $669.08
You Save: $171.38 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Replaces: L3F1-20-55X, L3F1-20-60X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mazda 6 Converter & Pipe Part Number: L3F1-20-60X
$497.70 MSRP: $669.08
You Save: $171.38 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic
- Replaced by: L3F1-20-55XB
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mazda 6 | Mazdaspeed | 4 Cyl 2.3 L GAS
View related parts
Mazda 6 Exhaust Manifold Part Number: PY82-20-50X
$604.87 MSRP: $813.16
You Save: $208.29 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016 Mazda 6 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: PY03-20-55XA
$635.08 MSRP: $867.78
You Save: $232.70 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter, Converter & Pipe
- Replaces: PY03-20-55X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2017 Mazda 6 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L506-20-55XE
Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: L506-20-55XD, L506-20-55XA, L506-20-55XC, L506-20-55XB
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2010 Mazda 6 | i | 4 Cyl 2.5 L GAS
View related parts
Mazda 6 Catalytic Converter Part Number: L505-20-55XE
Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: L505-20-55XC, L505-20-55XA, L505-20-55XD, L505-20-55XB
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mazda 6 | i | 4 Cyl 2.5 L GAS

| Page 1 of 2 |Next >

1-20 of 33 Results

Mazda 6 Catalytic Converter

The Mazda 6 Catalytic Converter is the emissions control unit of the car that helps to neutralize the toxic materials in its exhaust gases by converting carbon monoxide, unburned fuel vapor, and nitrogen oxide into much safer water vapor, nitrogen, and carbon dioxide. This Mazda part is housed in a tough metal casing and is loaded with a ceramic honeycomb coated with platinum, palladium, and rhodium that provides thousands of routes in which the hot gases are deflected against the catalyst to initiate milliseconds of oxidation of CO and HC, as well as reduction of NOx. Initial models of this midsize model applied the two-way type of the industry, only addressing carbon monoxide and hydrocarbon, but later Mazda sedans were set up in the three-way type, which also includes the nitrogen oxide breakup, thus meeting tougher standards. Both are reliant on an accurate air-fuel ratio, since either excess fuel or repeated misfires may overheat and melt the substrate, and leaking oil or coolant may coat its walls and obscure the reaction. Strikes on the casing, a clog in the exhaust, rattling, dim power, a check engine light, and even a failed emissions test of the Catalytic Converter may be caused by road debris hits. Even though the internal honeycomb provides certain backpressure by default, the designers did not act to ensure that performance is restrained on a daily basis. All Mazda 6 drivers are advised to watch the health of the engine, since a mixture issue may easily destroy the Catalytic Converter, and changing it prior to a check is a way to avoid fines and save the environment.

Looking for Catalytic Converter with proven quality? Choose OEM Catalytic Converter. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 6 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 6 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda 6 Catalytic Converter Parts and Q&A

Catalytic Converter
L541-20-55XD
Q: How to remove and install the catalytic converter on Mazda 6?
A:
On all engines except the 3.7L V6, the catalytic converters are integral components of the exhaust manifolds and cannot be serviced separately. The catalytic converter is located under the vehicle. Begin by raising the vehicle and placing it securely on jackstands. Locate the downstream Oxygen Sensor on the upper central part of the catalyst, trace the sensor to its electrical connector, and disconnect it. Unscrew and remove the downstream oxygen sensor from the catalyst. Next, remove the nuts and bolts that secure the flange at the front end of the catalyst to the exhaust down pipe; if the threads are severely damaged or rusted, apply some penetrant to the threads and wait before loosening them. Loosen the fasteners on the clamp that secures the rear end of the catalyst to the exhaust system, and again, if the threads are severely damaged or rusted, apply some penetrant and wait before loosening. Remove the heat shields and take out the catalytic converter. Discard the old gasket between the exhaust down pipe and the catalyst mounting flange. Installation is the reverse of removal, using a new gasket and, if necessary, new fasteners.