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Buick Catalytic Converter

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Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Firewall Side
Vehicle Info Required to Guarantee Fit
$148.68
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Firewall SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 5045719253Dimensions : 14 in. Overall LengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Radiator Side
Vehicle Info Required to Guarantee Fit
$148.68
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Radiator SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 5045619252Dimensions : 13.5 in. overall lengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Firewall and Radiator Side
Vehicle Info Required to Guarantee Fit
$282.49
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Firewall And Radiator SideComponents : (1) Front Firewall Side Catalytic Converter, (1) Front Radiator Side Catalytic ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 5045719253, 5045619252Dimensions : 13.5 in. overall lengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange)Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center
Vehicle Info Required to Guarantee Fit
$117.44
Vehicle Fitment
  • 2006 - 2008 Buick Lucerne CXL 8 Cyl 4.6L
  • 2006 - 2008 Buick Lucerne CXS 8 Cyl 4.6L
  • 2008 - 2011 Buick Lucerne Super 8 Cyl 4.6L
Product Details
Location : CenterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 5.04101903016389E+39Dimensions : 19 in. Overall LengthInlet Type : Single (4-bolt welded flange) InletOutlet Type : Single (2.88 in. OD) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter Center, For 113.0 Wheelbase Models with 4.2L Eng California Emissions 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$159.48
Vehicle Fitment
  • 2004 - 2005 Buick Rainier CXL Plus 6 Cyl 4.2L
  • 2004 - 2005 Buick Rainier CXL 6 Cyl 4.2L
Product Details
Location : CenterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 50365Dimensions : 50 in. overall lengthInlet Type : Single (3-bolt spinner flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter Rear, For Models with 3.6L Eng California Emissions 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$124.38
Vehicle Fitment
  • 2009 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2009 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : RearEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementTube Material : Aluminized Steel TubeProduct Fit : Direct FitReplaces OE Number : 15903508, 20906951Interchange Part Number : 15903508, 20906951Dimensions : 21 in. Overall LengthInlet Type : Single (2-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) Outlet
Catalytic Converter Front, For Models with 1.4L Turbo Eng California Emissions 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$145.75
Vehicle Fitment
  • 2013 - 2016 Buick Encore Base 4 Cyl 1.4L
  • 2013 - 2016 Buick Encore Convenience 4 Cyl 1.4L
  • 2013 - 2016 Buick Encore Leather 4 Cyl 1.4L
  • 2013 - 2016 Buick Encore Premium 4 Cyl 1.4L
  • 2016 Buick Encore Sport Touring 4 Cyl 1.4L
Product Details
Location : FrontEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitReplaces OE Number : 55578984Interchange Part Number : 55578984Dimensions : 14 in. Overall LengthOutlet Type : Single (3-bolt welded flange) OutletOxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$126.73
Vehicle Fitment
  • 2001 - 2005 Buick LeSabre Custom 6 Cyl 3.8L
  • 2001 - 2005 Buick LeSabre Limited 6 Cyl 3.8L
Product Details
Emissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 50391998816386Dimensions : 18 in. Overall LengthInlet Type : Single (4-bolt welded flange) InletOutlet Type : Single (2.38 in. OD) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter Center, For Models with 3.8L Eng California Emissions 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$162.11
Vehicle Fitment
  • 1997 - 1999 Buick Regal GS 6 Cyl 3.8L
  • 1997 - 2004 Buick Regal LS 6 Cyl 3.8L
  • 1998 Buick Regal 25th Anniversary Edition 6 Cyl 3.8L
  • 2000 Buick Regal LSE 6 Cyl 3.8L Naturally Aspirated
Product Details
Location : CenterNotes : Compatible with 3.8L engines only. Will NOT fit 3.4L engines.Emissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 50321, 23405, 54627, 4876, 16567, 51396, 079-5130, 20176, 54758Dimensions : 37 in. Overall LengthInlet Type : Single (2-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center
Vehicle Info Required to Guarantee Fit
$161.00
Vehicle Fitment
  • 1997 - 2005 Buick Century Custom 6 Cyl 3.1L
  • 1997 - 2005 Buick Century Limited 6 Cyl 3.1L
  • 2005 Buick Century Special Edition 6 Cyl 3.1L
Product Details
Location : CenterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 50322Dimensions : 40 in. Overall LengthInlet Type : Single (2-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Driver Side
Vehicle Info Required to Guarantee Fit
$234.22
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Front, Driver SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 13.5 in. overall lengthAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Passenger Side
Vehicle Info Required to Guarantee Fit
$234.34
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2017 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Front, Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$445.13
Vehicle Fitment
  • 2008 - 2011 Buick Enclave CX 6 Cyl 3.6L
  • 2008 - 2011 Buick Enclave CXL 6 Cyl 3.6L
  • 2012 - 2013 Buick Enclave Base 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Convenience 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Leather 6 Cyl 3.6L
  • 2014 - 2015 Buick Enclave Premium 6 Cyl 3.6L
Product Details
Location : Front, Driver And Passenger SideNotes : Kit components - 2 Catalytic ConvertersEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 13.5 in. overall lengthAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$58.30
Vehicle Fitment
  • 1980 Buick Skyhawk Base 6 Cyl 3.8L Undercar, Without Air Tube
  • 1980 Buick Skyhawk Designers' Accent Edition 6 Cyl 3.8L Undercar, Without Air Tube
  • 1980 Buick Skyhawk Road Hawk 6 Cyl 3.8L Undercar, Without Air Tube
  • 1980 Buick Skyhawk S 6 Cyl 3.8L Undercar, Without Air Tube
  • 1981 - 1982 Buick Regal Base 6 Cyl 3.8L
  • 1981 - 1982 Buick Regal Limited 6 Cyl 3.8L
  • 1981 - 1982 Buick Regal Sport 6 Cyl 3.8L
  • 1982 Buick Regal Estate Wagon 6 Cyl 3.8L Undercar, Without Air Tube
  • 1985 Buick Somerset Regal Base 4 Cyl 2.5L Undercar, Without Air Tube
  • 1985 Buick Somerset Regal Limited 4 Cyl 2.5L Undercar, Without Air Tube
  • 1986 Buick LeSabre Custom 6 Cyl 3.0L
  • 1986 Buick LeSabre Limited 6 Cyl 3.0L
  • 1986 Buick Somerset T-Type 4 Cyl 2.5L Undercar, Without Air Tube
  • 1986 - 1987 Buick Riviera T-Type 6 Cyl 3.8L
  • 1986 - 1987 Buick Somerset Custom 4 Cyl 2.5L
  • 1986 - 1987 Buick Somerset Limited 4 Cyl 2.5L
  • 1986 - 1988 Buick Electra Limited 6 Cyl 3.8L
  • 1986 - 1988 Buick Electra Park Avenue 6 Cyl 3.8L
  • 1986 - 1988 Buick Electra T-Type 6 Cyl 3.8L
  • 1986 - 1989 Buick Skylark Custom 4 Cyl 2.5L
  • 1986 - 1989 Buick Skylark Limited 4 Cyl 2.5L
  • 1986 - 1991 Buick LeSabre Custom 6 Cyl 3.8L
  • 1986 - 1991 Buick LeSabre Limited 6 Cyl 3.8L
  • 1986 - 1993 Buick Riviera Luxury 6 Cyl 3.8L
  • 1987 Buick LeSabre T-Type 6 Cyl 3.8L
  • 1987 - 1991 Buick LeSabre Base 6 Cyl 3.8L
  • 1988 - 1989 Buick Skylark Limited 4 Cyl 2.3L
  • 1988 - 1990 Buick Reatta Base 6 Cyl 3.8L
  • 1988 - 1991 Buick Skylark Custom 4 Cyl 2.3L
  • 1989 Buick Century Estate Wagon 6 Cyl 3.3L Undercar
  • 1989 - 1993 Buick Century Custom 6 Cyl 3.3L
  • 1989 - 1993 Buick Century Limited 6 Cyl 3.3L
  • 1990 - 1991 Buick Skylark Gran Sport 4 Cyl 2.3L
  • 1990 - 1991 Buick Skylark Luxury Edition 4 Cyl 2.3L
  • 1991 Buick Park Avenue Base 6 Cyl 3.8L Undercar
  • 1991 Buick Park Avenue Ultra 6 Cyl 3.8L Undercar
  • 1991 Buick Skylark Base 4 Cyl 2.3L Undercar, 2 1/4 in. OD Outlet
  • 1991 - 1993 Buick Century Special 6 Cyl 3.3L
Product Details
Notes : 10 in. in length with 2.25 in. inlet and outlet diameter, Height (5 in.), Length (15 in.), Width (8 in.)Series : Eastern StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$48.20
Vehicle Fitment
  • 1980 Buick Skylark Base 4 Cyl 2.5L Undercar
  • 1980 Buick Skylark Base 6 Cyl 2.8L Undercar
  • 1980 Buick Skylark Limited 4 Cyl 2.5L Undercar
  • 1980 Buick Skylark Limited 6 Cyl 2.8L Undercar
  • 1980 Buick Skylark Sport 4 Cyl 2.5L Undercar
  • 1980 Buick Skylark Sport 6 Cyl 2.8L Undercar
  • 1985 Buick Somerset Regal Base 6 Cyl 3.0L
  • 1985 Buick Somerset Regal Limited 6 Cyl 3.0L
  • 1986 Buick Somerset T-Type 6 Cyl 3.0L Undercar
  • 1986 - 1987 Buick Somerset Custom 6 Cyl 3.0L
  • 1986 - 1987 Buick Somerset Limited 6 Cyl 3.0L
  • 1986 - 1988 Buick Century Custom 6 Cyl 2.8L
  • 1986 - 1988 Buick Century Estate Wagon 6 Cyl 2.8L
  • 1986 - 1988 Buick Century Limited 6 Cyl 2.8L
  • 1986 - 1988 Buick Skylark Custom 6 Cyl 3.0L
  • 1986 - 1988 Buick Skylark Limited 6 Cyl 3.0L
  • 1987 Buick Skyhawk Limited 4 Cyl 2.0L
  • 1987 Buick Skyhawk Sport 4 Cyl 2.0L
  • 1987 Buick Skyhawk T-Type 4 Cyl 2.0L
  • 1987 - 1988 Buick Skyhawk Custom 4 Cyl 2.0L
  • 1988 Buick Skyhawk SE 4 Cyl 2.0L Undercar
  • 1988 - 1989 Buick Regal Custom 6 Cyl 2.8L
  • 1988 - 1989 Buick Regal Limited 6 Cyl 2.8L
  • 1989 Buick Regal Gran Sport 6 Cyl 3.1L Undercar
  • 1989 Buick Skylark Custom 6 Cyl 3.3L Undercar
  • 1989 Buick Skylark Limited 6 Cyl 3.3L Undercar
  • 1989 - 1993 Buick Regal Custom 6 Cyl 3.1L
  • 1989 - 1993 Buick Regal Limited 6 Cyl 3.1L
  • 1992 Buick Skylark Custom 4 Cyl 2.3L Undercar
Product Details
Series : Eastern StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Page 1 of 33 | Showing 1 - 15 of 483 results

Buick Catalytic Converter Customer Reviews

Fast shipping and great fit.
Glenn Blackwell
VERIFIED PURCHASER
Purchased on Apr 10, 2020
Great replacement
Chatie Walton
VERIFIED PURCHASER
Purchased on Apr 09, 2020
I had this item installed on my 2003 Chevy it was very hard to get the bolts out of the other one as the car is 13 years old but after that is was fine. Car is running so much better, but I still have minor repairs needed, which I get done a little at a time. And free shipping on $50.00 or more is an extra plus.
Purchased on Nov 19, 2015

Buick Catalytic Converter Articles

During combustion process, hydrocarbons, nitrogen oxide and carbon monoxide are produced. These gases are dangerous when released to the atmosphere, so back in the 70s, a Clean Air Act was passed to limit amount of pollutants being emitted from vehicles. In response to this, auto manufacturers including the Buick added pollution control devices in their automobiles and started to use self adjusting engines.

One of the devices used to control harmful emissions is the catalytic converter. This device looks like a muffler and is a part of the exhaust system of your Buick vehicle. The use of catalytic converters has been required in US since the 1980s; however only gasoline-powered autos have catalytic converters, so diesel-powered Buicks don't have cats. It is called a "catalytic converter" because it has pellets that serve as catalyst that speed up chemical process to convert the exhaust into carbon dioxide and water, which are environment friendly.

In the engine, the air and fuel mixture are burned in order to produce power that would drive the wheels to turn. The excess burned gas is then expelled to the exhaust system, particularly in the Buick catalytic converter, so it can be turned into non-harmful emissions before they are sent out in the air. Your Buick catalytic converter is actually an extra place for the oxidation or combustion. Here, the exhaust gas is chemically oxidized with the help of the platinum-made honeycomb.

As the catalytic converter cleans the exhaust by converting it into carbon dioxide or water, it produces heat. Thus, the more harmful exhaust, the more heat it is able to produce. You probably have heard of or have seen a catalytic converter glowing, this is due to the excessive amount of heat it produces. If your Buick catalytic converter reaches this point, it is now more prone to damages. If you are using leaded fuel, your catalytic converter might fail to work because led produces coating on the platinum.

Closer Look at Buick Catalytic Converter

In order to comply with current regulations governing the release of pollution from your Buick, the vehicle has several components installed that are responsible for monitoring and reducing the amount of emissions released from the exhaust stream. One of the most important parts in the system is the Buick catalytic converter. When the engine is running, it does not use all of the energy in the fuel, due to the inefficient nature of the internal combustion process. If the unburned fuel exits untreated, it can cause harm to the environment, and the Buick catalytic converter is designed to prevent this. Using a small bit of platinum, the Buick catalytic converter initiates a chemical process that burns the rest of the fuel, before it can escape into the air. At the end of the unit, an oxygen sensor is installed to determine if the process completed successfully. After many years, the Buick catalytic converter may suffer from the effects of corrosion, reducing its efficiency. At this point, the oxygen sensor will alert the engine's computer to the problem, and the computer will try to fix it by adjusting the amount of fuel and air in the combustion chamber. If the problem cannot be fixed, the computer will alert you with a warning light, and when the codes are read, you will soon realize that the Buick catalytic converter must be replaced. Our online catalog will have the perfect replacement part for most vehicles, at a very low price. The new Buick catalytic converter can be ordered from our secure web site, or by phone, with a toll-free call to one of our friendly associates, at any time.

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Can You Drive Without a Catalytic Converter?
April 09, 2020
Can You Drive Without a Catalytic Converter?Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is—should you risk it? 
How Long Does a Catalytic Converter Last?
April 08, 2020
How Long Does a Catalytic Converter Last?The primary purpose of the catalytic converter is to turn harmful emissions into non-toxic carbon dioxide and water. Thus, you can think of maintaining it as your contribution to reducing air pollution on the road.
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