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2008 Hummer H3
2008 Hummer H3 Catalytic Converters
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Part Number: JG960309
Guaranteed to Fit
$314.99
Vehicle Fitment
- 2008 Hummer H3 X 5 Cyl 3.7L
- 2008 Hummer H3 Luxury 5 Cyl 3.7L
- 2008 Hummer H3 Base 5 Cyl 3.7L
- 2008 Hummer H3 Adventure 5 Cyl 3.7L
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)Restricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-413Gasket 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: REPG960309
Guaranteed to Fit
$291.99
Vehicle Fitment
- 2008 Hummer H3 X 5 Cyl 3.7L
- 2008 Hummer H3 Luxury 5 Cyl 3.7L
- 2008 Hummer H3 Base 5 Cyl 3.7L
- 2008 Hummer H3 Adventure 5 Cyl 3.7L
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)Restricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-413Gasket 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
- 2008 Hummer H3 Base 5 Cyl 3.7L Cutting And Welding Required
- 2008 Hummer H3 X 5 Cyl 3.7L Cutting And Welding Required
- 2008 Hummer H3 Luxury 5 Cyl 3.7L Cutting And Welding Required
- 2008 Hummer H3 Adventure 5 Cyl 3.7L 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: DAV19722
Guaranteed to Fit
$505.99
Vehicle Fitment
- 2008 Hummer H3 Alpha 8 Cyl 5.3L
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 : 51.5 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: DAV19462
Guaranteed to Fit
$516.99
Vehicle Fitment
- 2008 Hummer H3 Alpha 8 Cyl 5.3L
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 : 53 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: DAV19721
Guaranteed to Fit
$424.99
Vehicle Fitment
- 2008 Hummer H3 Alpha 8 Cyl 5.3L
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 : 45 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: DAV19282
Guaranteed to Fit
$336.99
Vehicle Fitment
- 2008 Hummer H3 X 5 Cyl 3.7L Manifold Converter
- 2008 Hummer H3 Luxury 5 Cyl 3.7L Manifold Converter
- 2008 Hummer H3 Base 5 Cyl 3.7L Manifold Converter
- 2008 Hummer H3 Adventure 5 Cyl 3.7L Manifold Converter
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 : 18.5 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: M6699206HM
Guaranteed to Fit
$178.00
Vehicle Fitment
- 2008 Hummer H3 Base 5 Cyl 3.7L
- 2008 Hummer H3 X 5 Cyl 3.7L
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: M6649612
Guaranteed to Fit
$451.00
Vehicle Fitment
- 2008 Hummer H3 Base 5 Cyl 3.7L
- 2008 Hummer H3 X 5 Cyl 3.7L
- 2008 Hummer H3 Luxury 5 Cyl 3.7L
- 2008 Hummer H3 Adventure 5 Cyl 3.7L
Product Details
Location : RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 47.5 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 : 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: M665491306
Guaranteed to Fit
$641.00
Vehicle Fitment
- 2008 Hummer H3 Base 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187; Cutting And Welding Required
- 2008 Hummer H3 X 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187; Cutting And Welding Required
- 2008 Hummer H3 Luxury 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187; Cutting And Welding Required
- 2008 Hummer H3 Adventure 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187; Cutting And Welding Required
Product Details
Location : RearEmissions : 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-193-146Gasket 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: M665491966
Guaranteed to Fit
$951.00
Vehicle Fitment
- 2008 Hummer H3 Adventure 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187
- 2008 Hummer H3 Base 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187
- 2008 Hummer H3 X 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187
- 2008 Hummer H3 Luxury 5 Cyl 3.7L EO# D-193-146; Eng Fam No: 8Gmxt03.7187
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2.5 in. Main Piping Diameter; 11 in. Body Length x 4 in. Body Width x 4 in. Body Height; 2.5 in. ID x 2.5 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet and Outlet Attachment; Stainless Steel Material; Post Converter; Includes Gasket; 48.25 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-146Gasket Included : Without 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: M6650664
Guaranteed to Fit
$1,059.00
Vehicle Fitment
- 2008 Hummer H3 Luxury 5 Cyl 3.7L
- 2008 Hummer H3 Base 5 Cyl 3.7L
- 2008 Hummer H3 Adventure 5 Cyl 3.7L
- 2008 Hummer H3 X 5 Cyl 3.7L
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 : Exhaust Manifold with Integrated Catalytic Converter Federal (Exc.CA); 21.88 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 : 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: M665592306
Guaranteed to Fit
$1,128.00
Vehicle Fitment
- 2008 Hummer H3 X 5 Cyl 3.7L Certification Level : LEV2 ULEV; Engine Family Number 8GMXT03.7188
- 2008 Hummer H3 Base 5 Cyl 3.7L Certification Level : LEV2 ULEV; Engine Family Number 8GMXT03.7188
- 2008 Hummer H3 Alpha 8 Cyl 5.3L Certification Level : LEV2 ULEV; Engine Family Number 8GMXT05.3377
Product Details
Location : Rear, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 2.5 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-193-148Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 5 year / 50,000 Mile 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: M665592966
Guaranteed to Fit
$1,537.00
Vehicle Fitment
- 2008 Hummer H3 X 5 Cyl 3.7L EO# D-193-148; Eng Fam No: 8Gmxt03.7188
- 2008 Hummer H3 Luxury 5 Cyl 3.7L EO# D-193-148; Eng Fam No: 8Gmxt03.7188
- 2008 Hummer H3 Base 5 Cyl 3.7L EO# D-193-148; Eng Fam No: 8Gmxt03.7188
- 2008 Hummer H3 Adventure 5 Cyl 3.7L EO# D-193-148; Eng Fam No: 8Gmxt03.7188
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2.5 in. Main Piping Diameter; 12 in. Body Length x 6.38 in. Body Width x 3.75 in. Body Height; 2.5 in. ID x 2.5 in. OD; Round Body Shape; Clam Shell Body Type; Bolt-On Inlet and Outlet Attachment; Stainless Steel Material; Post Converter; Includes Gasket; 48.25 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-148Gasket Included : Without 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: M665582406
Guaranteed to Fit
$1,710.00
Vehicle Fitment
- 2008 Hummer H3 Alpha 8 Cyl 5.3L Certification Level : LEV2 ULEV; Engine Family Number 8GMXT05.3377
Product Details
Location : Front, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 2.5 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-193-148Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 5 year / 50,000 Mile 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.
Page 1 of 4 | Showing 1 - 15 of 55 results
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If a clogged or damaged converter’s got your emissions system on the fritz, trust CATCO’s direct fit c...
FlowmasterUniversal 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 #2250220
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Flowmaster Catalytic Converter
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AP ExhaustDriver Side 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 #645179
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The AP Exhaust catalytic converter has an eco-friendly and energy-efficient design to support maximum pollu...
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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 DAVICO CATALYTIC CONVERTER
Carefully crafted to be easily installed without a need for cutting, sliding, clamping or welding, Davico&rsquo...Related Parts
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