1. Catalytic Converters Parts
  2. sku: 10041456845891881
  3. HDAUTOWORLD HD176278LD

HDAUTOWORLD HD176278LD Catalytic Converter Base 4487

fits model: H3. make: Chevrolet, Hummer. year: 2004–2006.

Hd176278ld Hdautoworld Catalytic Converter For Chevrolet Colorado Hummer H3 Base 2004-2005 2006 4487

( Brand: Hdautoworld ), ( Manufacturer Part Number: HD176278LD ), ( Type: Catalytic Converter ), ( Placement On Vehicle: Exhaust ), ( Labels Certifications: Epa ), ( Features: 100 Accuracy Of Fit, Easy To Replace ), ( Oe/oem Part Number: 16481, 3011026, 19214, 674703, 101433, 642196, 50428, 4487 ), ( Items Included: Bolts ), ( Manufacturer Warranty: 5 Years ), ( Body Material: Stainless Steel ), ( Substrate Material: Aluminum ), ( Performance Part: Yes ), ( Universal Fitment: No ), ( Oxygen Sensor Location: Pre Post Catalyst ), ( Finish: Polished, Rust Protected ), ( Fitment Type: Direct Replacement ), ( Emissions: 48-state Legal ), ( Overall Length: 23 In ), ( Inlet Diameter: 3.25 In ), ( Working Principle: Enhance Gas Activity, Catalyze Spray Carrier ), ( Part Name: Three-way Catalyst Converter ), ( Part Type: Twc, Three Way Catalyst, Three-way Catalyst ), ( Restricted States: California, New York, Colorado Maine ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov. ), ( Conversion Rate: 99 ), ( Body Length: 4.5 In )

Review HDAUTOWORLD Catalytic Converter Chevrolet Colorado Hummer Base fits H3 2004–2006

The HDAutoworld HD176278LD Catalytic Converter is a premium replacement part designed specifically for Chevrolet Hummer H3 Base models produced between 2004 and 2005 and 2006. This catalytic converter is engineered to meet or exceed original equipment manufacturer (OEM) specifications for durability and performance.

This catalytic converter features a robust stainless steel construction, ensuring it withstands the rigors of off-road driving and harsh operating conditions. The converter's advanced design promotes efficient exhaust gas flow, reducing back pressure and improving engine performance.

The HD176278LD is a 4487 series converter, which is the correct fitment for the specified Hummer H3 models. It comes with all necessary mounting hardware, ensuring a straightforward installation process. This catalytic converter is CARB (California Air Resources Board) compliant, making it an eco-friendly choice for those seeking to minimize their vehicle's environmental impact.

This HDAutoworld catalytic converter undergoes rigorous testing to ensure it meets or exceeds OEM specifications for emissions and efficiency. It is backed by an industry-leading warranty, providing peace of mind to customers.

By choosing the HDAutoworld HD176278LD Catalytic Converter, Hummer H3 owners can expect improved engine performance, better fuel efficiency, and reduced exhaust emissions. This replacement part is a wise investment for those looking to maintain the reliability and longevity of their beloved off-road vehicle.

Pros and Cons of buying a HD Autoworld HD176278LD Catalytic Converter for Chevrolet Hummer H3 (2004-2005, 2006)

Introduction:

The HD Autoworld HD176278LD catalytic converter is designed for the Chevrolet Hummer H3 models from 2004 to 2006. This article aims to provide a clear and concise analysis of the potential advantages and disadvantages of purchasing this catalytic converter.

Pros:

1. Improved Performance: A new catalytic converter can help increase engine performance and fuel efficiency by reducing backpressure and improving exhaust flow.

2. Enhanced Emission Control: The HD176278LD catalytic converter is designed to meet or exceed the emission standards for the Chevrolet Hummer H3, ensuring that your vehicle is in compliance with local regulations.

3. OEM Quality: This catalytic converter is manufactured to meet or exceed OEM specifications, ensuring a proper fit and reliable operation.

4. Durable Construction: The HD Autoworld HD176278LD catalytic converter features a durable design with a high-flow monolithic substrate and reinforced inlet and outlet pipes.

Cons:

1. Cost: Catalytic converters can be expensive, and the HD Autoworld HD176278LD model is no exception.

2. Installation Complexity: Installing a catalytic converter can be a complex process, requiring specialized tools and knowledge. It is recommended to have the converter installed by a professional mechanic.

3. Potential for Check Engine Light: Installing a new catalytic converter may trigger the check engine light, even if the converter is functioning properly. This can be due to the vehicle's computer system recognizing a new component and requiring calibration.

Conclusion:

The HD Autoworld HD176278LD catalytic converter offers several advantages, including improved performance, enhanced emission control, OEM quality, and durable construction. However, it also comes with some disadvantages, such as cost, installation complexity, and potential for the check engine light.

Recommendation:

If you are experiencing catalytic converter failure, or simply looking to upgrade your Chevrolet Hummer H3's emissions system, the HD Autoworld HD176278LD catalytic converter is a solid choice. However, it is recommended to weigh the advantages and disadvantages carefully and consider the cost of professional installation. If you are comfortable with the installation process and have the necessary tools, you may be able to save some money by installing the converter yourself. Ultimately, the decision to purchase this catalytic converter depends on your budget, technical expertise, and personal priorities.

part # hd176278ld price

  • $81.79

specifications catalyticonvo:

  • for models: H3
  • for makes: Chevrolet, Hummer
  • for years: 2004-2006
  • brand: Hdautoworld
  • manufacturer part number: HD176278LD
  • type: Catalytic Converter
  • placement on vehicle: Exhaust
  • labels certifications: Epa
  • features: 100 Accuracy Of Fit, Easy To Replace
  • oe/oem part number: 16481, 3011026, 19214, 674703, 101433, 642196, 50428, 4487
  • items included: Bolts
  • manufacturer warranty: 5 Years
  • body material: Stainless Steel
  • substrate material: Aluminum
  • performance part: Yes
  • universal fitment: No
  • oxygen sensor location: Pre Post Catalyst
  • finish: Polished, Rust Protected
  • fitment type: Direct Replacement
  • emissions: 48-state Legal
  • overall length: 23 In
  • inlet diameter: 3.25 In
  • working principle: Enhance Gas Activity, Catalyze Spray Carrier
  • part name: Three-way Catalyst Converter
  • part type: Twc, Three Way Catalyst, Three-way Catalyst
  • restricted states: California, New York, Colorado Maine
  • california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov.
  • conversion rate: 99
  • body length: 4.5 In

seller catalyticonvo:

  • rating: 99.5%
  • # reviews: 9038

general catalyticonvo:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters

shipping catalyticonvo:

  • service: FedEx Ground Economy
  • cost: $0.00
  • transit: 3-7 Days
  • carrier: FedEx
  • class: Economy
  • type: Fixed

payments catalyticonvo:

  • credit card: Mastercard
  • other
  • wallet: Apple-pay

returns catalyticonvo:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

offer catalyticonvo:

  • availability: In Stock
  • best offers: True
  • started: March 23, 2026
  • options: Ship-to-home
  • quantity: 5
  • sold: 0
for models: h3, for makes: chevrolet, hummer, for years: 2004-2006, type: catalytic converter, placement on vehicle: exhaust, labels certifications: epa, features: 100 accuracy of fit, easy to replace, oe/oem part number: 16481, 3011026, 19214, 674703, 101433, 642196, 50428, 4487, items included: bolts, manufacturer warranty: 5 years, body material: stainless steel, substrate material: aluminum, performance part: yes, universal fitment: no, oxygen sensor location: pre post catalyst, finish: polished, rust protected, fitment type: direct replacement, emissions: 48-state legal, overall length: 23 in, inlet diameter: 3.25 in, working principle: enhance gas activity, catalyze spray carrier, part name: three-way catalyst converter, part type: twc, three way catalyst, three-way catalyst, restricted states: california, new york, colorado maine, california prop 65 warning: cancer and reproductive harm www.p65warnings.ca.gov., conversion rate: 99, body length: 4.5 in,
category: auto parts > car truck parts accessories > exhaust emission systems > catalytic converters, sku: 10041456845891881,

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