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2003 Nissan Xterra
2003 Nissan Xterra Catalytic Converters
Shopping for a 2003 Nissan Xterra catalytic converter replacement on a budget? CarParts.com has got you covered. We have a wide selection of universal and manifold converters that come in stainless, aluminized, or cast iron tube materials. All products come with a low-price guarantee to help you get the best value for your money. Order now, and we’ll deliver the part you need straight to your doorstep in as fast as two business days. Shop from the comfort of your home, and check out securely with a few clicks!
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Part Number: JN960341
Guaranteed to Fit
$259.99
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally Aspirated; 19.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-406Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: JN960342
Guaranteed to Fit
$204.99
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally AspiratedRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-405Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: SET-JN960341
Guaranteed to Fit
$554.99
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
Product Details
Location : Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally AspiratedComponents : (1) Front Driver Side Catalytic Converter, (1) Front Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: REPN960341
Guaranteed to Fit
$199.99
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L
- 2003 Nissan Xterra XE 6 Cyl 3.3L
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally Aspirated; 19.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-406Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: REPN960342
Guaranteed to Fit
$193.49
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L
- 2003 Nissan Xterra XE 6 Cyl 3.3L
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally AspiratedRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-405Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: SET-REPN960341
Guaranteed to Fit
$373.99
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated
Product Details
Location : Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter, Naturally AspiratedComponents : (1) Front Driver Side Catalytic Converter, (1) Front Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: REPN960315
Guaranteed to Fit
$146.36
Vehicle Fitment
- 2003 Nissan Xterra XE 4 Cyl 2.4L Precat
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 13 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/30005NNGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: M6651206
Guaranteed to Fit
$194.00
Vehicle Fitment
- 2003 Nissan Xterra XE 4 Cyl 2.4L Cutting And Welding Required
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 13.75 in. L x 5 in. W x 4.75 in. HRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18038
Guaranteed to Fit
$260.49
Vehicle Fitment
- 2003 Nissan Xterra XE 6 Cyl 3.3L With California Emission
- 2003 Nissan Xterra SE 6 Cyl 3.3L With California Emission
Product Details
Location : Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 26 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18153
Guaranteed to Fit
$313.99
Vehicle Fitment
- 2003 Nissan Xterra XE 6 Cyl 3.3L Pre Cat
- 2003 Nissan Xterra SE 6 Cyl 3.3L Pre Cat
Product Details
Location : Front, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 12.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18230
Guaranteed to Fit
$527.49
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 22 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18152
Guaranteed to Fit
$293.49
Vehicle Fitment
- 2003 Nissan Xterra XE 6 Cyl 3.3L
- 2003 Nissan Xterra SE 6 Cyl 3.3L
Product Details
Location : Rear, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Without air tube port provision; 38.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18052
Guaranteed to Fit
$294.99
Vehicle Fitment
- 2003 Nissan Xterra XE 4 Cyl 2.4L Eng Des: KA24DE
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Without air tube port provision; 13.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV18231
Guaranteed to Fit
$525.49
Vehicle Fitment
- 2003 Nissan Xterra SE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
- 2003 Nissan Xterra XE 6 Cyl 3.3L Naturally Aspirated, Manifold Converter
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 22 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part Number: DAV124296
Guaranteed to Fit
$526.99
Vehicle Fitment
- 2003 Nissan Xterra XE 6 Cyl 3.3L Pre Cat; Efn: 3Nsxt03.3C6A; Emission Std: LEV1 LEV; Vehicle Class: Ldt2
- 2003 Nissan Xterra SE 6 Cyl 3.3L Pre Cat; Efn: 3Nsxt03.3C6A; Emission Std: LEV1 LEV; Vehicle Class: Ldt2
Product Details
Location : Front, Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 4.5 in. W x 4.75 in. H; 13.5 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-709Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Page 1 of 8 | Showing 1 - 15 of 106 results
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Q:I also noticed the first four (4) photos do not show the taps for the heat shield assembly, but the last one does. Which is correct? Show Less
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The image of this item is only a representation sent by the manufacturer. The actual part may vary depending on the application. Show less
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Helpful Automotive Resources
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)In most cases, a vehicle with an inefficient catalytic converter will continue to run just fine. But if the converter is obstructed internally, it can cause poor engine performance and may even damage the engine in the long run.
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
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?
Removing or disabling the catalytic converter could
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.
How to Tell If the Catalytic Converter is CloggedA clogged catalytic converter will present symptoms, while a chemically failed cat con that’s not clogged typically just illuminates the check engine light or malfunction indicator lamp (MIL). Also, if the cat con that just fails chemically but doesn’t clog is not the light-off cat con (the cat con closest