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2004 Pontiac Grand Prix
2004 Pontiac Grand Prix Catalytic Converters
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Part Number: EB96030003
Guaranteed to Fit
$191.84
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 38 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 : 1 portOxygen 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
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L Cutting And Welding Required
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L Cutting And Welding Required
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L 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: DAV49359
Guaranteed to Fit
$417.49
Vehicle Fitment
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L Dealer Alternative; With California Emission
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L Dealer Alternative; With California Emission
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L Dealer Alternative; With California Emission
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted 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: DAV19359
Guaranteed to Fit
$211.99
Vehicle Fitment
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L With California Emission
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L With California Emission
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L With California Emission
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 37.88 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: M6699206HM
Guaranteed to Fit
$178.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L Cutting and Welding Required During Installation
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L Cutting and Welding Required During Installation
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L Cutting and Welding Required During Installation
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 : 2.25 in. Inlet/2.5 in. OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 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: M6699305HM
Guaranteed to Fit
$188.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
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 : 2.25 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 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: M6624205
Guaranteed to Fit
$419.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
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 : 38.63 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 : Magnaflow 25,000 Mile Limited WarrantyProp 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: M6649227
Guaranteed to Fit
$440.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
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 : 38.63 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 : Magnaflow 25,000 Mile Limited WarrantyProp 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: M665461206
Guaranteed to Fit
$1,137.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042; Cutting And Welding Required
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042; Cutting And Welding Required
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042; Cutting And Welding Required
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : 9 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-140Gasket Included : Without GasketWarranty : 5-year or 50,000-mile Magnaflow 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: M665461227
Guaranteed to Fit
$1,512.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L EO# D-193-140; Eng Fam No: 4Gmxv03.8042
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2.25 in. Main Piping Diameter; Bolt-On Inlet and Outlet Attachment; Stainless Steel Material; Ceramic Substrate Material; Post Converter; Includes Hangers and Gasket; 38.63 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-140Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyProp 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: M664561227
Guaranteed to Fit
$1,607.00
Vehicle Fitment
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L EO# D-193-142; Eng Fam No: 4Gmxv03.8041
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L EO# D-193-142; Eng Fam No: 4Gmxv03.8041
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L EO# D-193-142; Eng Fam No: 4Gmxv03.8041
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2.25 in. Main Piping Diameter; Bolt-On Inlet Attachment; Bolt-On Outlet Attachment; Stainless Steel Material; Ceramic Substrate Material; Includes Gasket(s) and Hanger(s); 38.63 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-142Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyProp 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: EAST50358
Guaranteed to Fit
$245.99
Vehicle Fitment
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L Undercar
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L Undercar
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L Undercar
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 : 38 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 : 5-year or 50,000-mile Eastern limited warrantyProp 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: WK54752
Guaranteed to Fit
$257.49
Vehicle Fitment
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 38 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker limited warrantyProp 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: APE608405
Guaranteed to Fit
$151.99
Vehicle Fitment
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L EPA Enhanced OBDII By Design Unit
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L EPA Enhanced OBDII By Design Unit
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L EPA Enhanced OBDII By Design Unit
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)Product Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementWarranty : 5-year or 50,000-mile AP Exhaust limited warranty on converter body and 50,000-mile limited warranty on emissionsProp 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: APE608705
Guaranteed to Fit
$193.49
Vehicle Fitment
- 2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GT2 6 Cyl 3.8L
- 2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
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)Product Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementWarranty : 5-year or 50,000-mile AP Exhaust limited warranty on converter body and 50,000-mile limited warranty on emissionsProp 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 4 | Showing 1 - 15 of 47 results
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FEDERAL EPA STANDARD, 46-STATE LEGAL (CANNOT SHIP TO OR BE USED IN VEHICLES ORIGINALLY PURCHASED IN CA, CO, NY OR ME) SEMI-UNIVERSAL (WELDING REQUIRED) MAGNAFLOW CATALYTIC CONVERTER
Meticulously constructed with premium stainless steel, MagnaFlow’s catal...
CatcoNo Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)Manufacturer #2705R
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FEDERAL EPA STANDARD, 46-STATE LEGAL (CANNOT SHIP TO OR BE USED IN VEHICLES ORIGINALLY PURCHASED IN CA, CO, NY OR ME) SEMI-UNIVERSAL (WELDING REQUIRED) CATCO CATALYTIC CONVERTER
Constructed with premium 409 stainless steel, CATCO semi-universal catalytic convert...
FlowmasterNo Returns Accepted, Universal Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Manufacturer #2000120
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FLOWMASTER CATALYTIC CONVERTER
Expertly crafted and tested to top-grade, OE-specific standards, Flowmaster Catalytic Converter provides high quality performance without the high level price. Its OE-standard design provides the right fit and the right solut...
AP ExhaustSemi-Universal (Welding Required) Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Manufacturer #608405
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AP EXHAUST CATALYTIC CONVERTER
The AP Exhaust catalytic converter has an eco-friendly and energy-efficient design to support maximum pollution reduction. It is constructed with robust materials for long-lasting performance and is a direct-fit component to pe...
WalkerUltra Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Manufacturer #54752
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FEDERAL EPA STANDARD, 46-STATE LEGAL (CANNOT SHIP TO OR BE USED IN VEHICLES ORIGINALLY PURCHASED IN CA, CO, NY OR ME) DIRECT FIT WALKER CATALYTIC CONVERTER
Optimize your vehicle’s emissions control with the premium steel design and reliable performance of Walk...Product Questions & Answers
Q:Does this require any welding 2006 Pontiac grand prix base catalytic converter ? Show Less
Angela J.
A:BEST ANSWERHi Angela, I'm pleased to assist you. No need to weld this converter on your 2004 Pontiac Grand Prix 6 Cyl 3.8L. They are attached by bolts, which you can reuse the old ones. But, you will need to replace the insulator and the gaskets related to this part. Click on the links below to complete your order at discounted prices while supplies last. I hope this is helpful. Enjoy shopping at CarParts.com!
Catalytic converter (49% off) - https://www.carparts.com/catalytic-converter/walker/wk54752?can=CPGG4850_CSQA_20220802
Insulator (60% off) - https://www.carparts.com/details/Pontiac/Grand_Prix/Walker/Exhaust_Insulator/2004/WK35352.html?can=CPGG4850_CSQA_20220802
Exhaust gasket 31605 (29% off) - https://www.carparts.com/details/Pontiac/Grand_Prix/Walker/Exhaust_Gasket/2004/WK31605.html?can=CPGG4850_CSQA_20220802
Exhaust gasket 31578 (53% off) - https://www.carparts.com/details/Pontiac/Grand_Prix/Walker/Exhaust_Gasket/2004/WK31578.html?can=CPGG4850_CSQA_20220802 Show less
Grace G.
3 Questions, 1 AnswerView all Q&As >
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