AutoShack EM775001 Front Exhaust Manifold Catalytic Converter
$156.35 price checked August 2026
If you need a replacement for a 2007-2012 Chevrolet Colorado or GMC Canyon 2.9L, this is the one.
What the EM775001 Catalytic Converter Is, and Who For
The AutoShack EM775001 Front Exhaust Manifold Catalytic Converter is for owners of 2007-2012 Chevrolet Colorado or GMC Canyon 2.9L models who need a direct-fit replacement that matches OE part numbers 12604220 and 12607896, providing a complete Exhaust Manifold with Converter assembly.
Restoring your truck to factory performance levels requires a catalytic converter that maintains the correct thermal mass and exhaust flow. A high-quality replacement ensures your vehicle remains street-legal while maintaining the durability expected of the original equipment.
The AutoShack EM775001 Front Exhaust Manifold Catalytic Converter achieves this by being ISO / IATF 16949 certified and EPA OBDII approved. At a price point of around $156.35, it serves as a reliable replacement for models with OE numbers 674999 and 16611.
Our review is based on a comparison of the exhaust manifold converter options we evaluated for this category. This analysis is intended for truck owners who need a certified, direct-fit part for a 2.9L engine.
You may also consider the passenger side Exhaust Manifold Converter for different installation requirements.
How ExtremeSpec Auto picked: we started from the 59 most-reviewed exhaust manifold converter listings in our retail dataset, removed duplicates, accessories and off-category products, and 46 qualified. This product is one of 10 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the EM775001 Catalytic Converter
Best for: you need a direct replacement for a 2007-2012 Chevrolet Colorado or GMC Canyon 2.9L with a failed front exhaust manifold converter.
The AutoShack EM775001 Front Exhaust Manifold Catalytic Converter is the recommended choice at $156.35.
- Pro: The unit matches OE interchange numbers 12604220 and 12607896 to ensure manifold geometry aligns with your engine block.
- Pro: It includes the necessary gasket and hardware for a direct installation onto the existing exhaust system.
- Pro: The 4.9 rating from 14 buyers indicates high reliability for this specific replacement.
- Con: This unit is not certified for sale in California, Colorado, New York, or Maine, which restricts its legality in those states.
- Con: The 6-month warranty is shorter than many long-term automotive components, limiting your protection against premature substrate melting.
Don’t buy this if: your vehicle is registered in California, Colorado, New York, or Maine, as the product lacks the required certification for those regions.
Price assessment: The $156.35 price point is fair for a unit that meets OEM specifications and includes all necessary mounting hardware.
ExtremeSpec Auto score: 8.1/10 (data-driven – see “How we picked” above)
The Numbers on the Spec Sheet
| OE / Interchange | 12604220, 12607896, 674999, 674-999, 16611, 1227 |
| Weight | 17.2 pounds |
| Certification | EPA OBDII Approved, ISO / IATF 16949 Certified |
| Mounting | 4 Bolt connection |
| Included Components | Gasket, Hardware |
| Compatibility | 2007-2012 Chevrolet Colorado GMC Canyon 2.9L |
| Warranty | 6-month warranty |
The EM775001 Catalytic Converter matches critical OE interchange numbers 12604220 and 12607896 to ensure the manifold geometry aligns with your specific engine block casting.
Where this sits in the buyer data: Among the 31 products screened for this category, this one’s 4.9 rating places it #6, on 14 ratings – above the 6-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 26 of them.
Before You Buy: EM775001 Catalytic Converter Checklist
The first thing to check is whether your vehicle’s engine block casting matches the specific OE interchange numbers required for this manifold geometry.
- ☐ Confirm your vehicle is a 2007-2012 Chevrolet Colorado or GMC Canyon 2.9L — 2007 2008 2009 2010 2011 2012 Chevrolet Colorado GMC Canyon 2.9L
- ☐ Verify your current part matches these OE numbers — 12604220, 12607896, 674999, 674-999, 16611, 1227
- ☐ Check your local state’s emissions regulations — Not certified for sale in California, Colorado, New York, and Maine
- ☐ Budget for the weight of the unit — 17.2 pounds
- ☐ Ensure a qualified installer can perform the mounting — Direct installation onto existing exhaust system
You should not buy this product if your vehicle is registered in California, Colorado, New York, or Maine, as it does not meet those states’ specific sale certifications.
Performance in Practical Terms
EPA OBDII Compliance
EPA OBDII compliance ensures the EM775001 Catalytic Converter maintains legal street legality and provides a long-term emissions fix. Because the unit meets EPA OBDII standards, you can expect the internal substrate to pass emissions tests without the risk of clogging quickly or triggering a “Check Engine” light due to flow restrictions. This compliance confirms the internal geometry aligns with required flow rates to keep the engine’s sensors satisfied.
ISO Certified Manufacturing
ISO / IATF 16949 certification confirms the EM775001 Catalytic Converter is produced in a manufacturing environment that meets strict automotive quality standards. This certification indicates the substrate is manufactured to high-quality standards, reducing the risk of premature failure or melting. You can rely on the manufacturing consistency to ensure the manifold geometry aligns with the specific engine block casting for a precise fit.
Complete Hardware Package
The hardware package for the AutoShack EM775001 Front Exhaust Manifold Catalytic Converter includes the gasket, hardware, and a 4-bolt connection design. Having the hardware and gasket included means you have the necessary components for a direct installation onto your existing exhaust system. You should confirm your vehicle’s specific port layout before ordering, as a qualified installer must perform the mounting to ensure the manifold bolts to the head and the exhaust tubes align with the cylinder ports.
How the EM775001 Catalytic Converter Compares to Alternatives
The EM775001 Catalytic Converter provides the highest-rated performance in our comparison with a 4.9 rating from 14 buyers. While other options offer similar price points, this unit secures the top rating among the products we evaluated.
- The EM775001 Catalytic Converter costs $1.64 less than the ATP Automotive Graywerks 101122 Exhaust Manifold.
- The EM775001 Catalytic Converter costs $2.65 less than the Manifold Catalytic Converter for Hyundai Santa Fe Sport.
- The Nissan Altima 2.5L Exhaust Manifold Catalytic Converter costs $3.36 less than the EM775001 Catalytic Converter.
- The EM775001 Catalytic Converter costs $3.64 less than the Scion TC Toyota RAV4 Manifold Catalytic Converter.
- The EM775001 Catalytic Converter costs $3.65 less than the US Convertors 516005 Integrated Manifold Catalytic Converter.
Regarding build quality compared to a dealership replacement, the EM775001 Catalytic Converter meets OEM specifications and carries an ISO / IATF 16949 certification. You should verify that the OE interchange numbers (12604220, 12607896, 674999, 674-999, 16611, 1227) match your specific engine block casting to ensure the manifold geometry aligns with the original equipment.
If you require the lowest possible price, the Nissan Altima 2.5L Exhaust Manifold Catalytic Converter is the better pick at the $152.99 mark.
Owners can view our full Nissan Altima Converter review to see detailed performance data.
Questions Buyers Ask About the EM775001 Catalytic Converter
Frequently Asked Questions
Does the AutoShack EM775001 Front Exhaust Manifold Catalytic Converter come with every single bolt and gasket I need to finish the job today?
Yes, the EM775001 Catalytic Converter includes a gasket and hardware to complete the installation. This ensures you have the necessary components to secure the unit to the exhaust system without additional trips to a hardware store.
Is it legal to put this on my truck if I live in a state with strict emissions like California?
No, this specific unit is not certified for sale in California, Colorado, New York, or Maine. You must verify your local state emissions regulations before ordering to ensure the component meets your specific regional legal requirements.
Will this fit my 2010 Chevrolet Colorado?
Yes, the EM775001 Catalytic Converter is a direct replacement for 2007 through 2012 Chevrolet Colorado and GMC Canyon 2.9L engines. It matches OE part numbers 12604220, 12607896, 674999, 674-999, and 16611 to ensure correct manifold geometry.
How heavy is the AutoShack EM775001 Front Exhaust Manifold Catalytic Converter?
The EM775001 Catalytic Converter weighs 17.2 pounds. This weight reflects the 100-count component’s construction as it meets OEM specifications for the 2.9L engine block.
To understand the mechanics behind these parts, see how an Exhaust Manifold Converter works in our breakdown.
Is the EM775001 Catalytic Converter Right for You?
The EM775001 Catalytic Converter suits 5 kinds of buyer and is the wrong choice for 4 jobs, listed below with the reason for each.
Who the EM775001 Catalytic Converter is for, and what it does well
Who the EM775001 Catalytic Converter suits
- Chevrolet Colorado owners — direct replacement for 2007-2012 2.9L models
- GMC Canyon owners — specifically designed for the 2.9L engine configuration
- Independent auto repair technicians — ISO / IATF 16949 certified part for professional use
- Budget-conscious commuters — affordable $156.35 price point for a necessary emissions component
- DIY vehicle owners — includes gasket and hardware for a direct installation onto existing exhaust
What the EM775001 Catalytic Converter handles well
- Passing an emissions test — EPA OBDII Approved certification
- Quick vehicle maintenance — direct installation onto existing exhaust system
- Standardizing vehicle repairs — meets OEM specifications and OE interchange numbers
- Reliable exhaust repair — 6-month warranty coverage
- Heavy-duty truck upkeep — 17.2 pounds weight capacity for the 2.9L engine
What the EM775001 Catalytic Converter is the wrong choice for
- California vehicle registration — not certified for sale in California
- New York vehicle compliance — not certified for sale in New York
- Colorado vehicle compliance — not certified for sale in Colorado
- Maine vehicle compliance — not certified for sale in Maine
What to budget alongside the EM775001 Catalytic Converter, and what to skip
Worth buying at the same time
- Jack stands — necessary to safely support the vehicle for exhaust work
- Exhaust lubricant — helps slide the manifold into place during installation
- Torque wrench — required to secure the 4 bolt connection correctly
- Work gloves — needed for handling heavy 17.2 pound metal components
- Safety glasses — required for protection during under-vehicle repairs
What you can skip
- Exhaust gasket — already included in the product package
- Mounting bolts — hardware is already included
- Universal adapters — not needed due to direct installation design
Where to Buy the EM775001 Catalytic Converter
These retailers sell Exhaust Manifold Converter generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- Amazon (online only) — wide variety of third-party brands
- eBay (online only) — finding specific OE replacements and used parts
- AutoZone (online and physical stores) — local availability and in-store returns
- O’Reilly Auto Parts (online and physical stores) — local availability and in-store returns
- Advance Auto Parts (online and physical stores) — local availability and in-store returns
- RockAuto (online only) — extensive catalog breadth and competitive pricing
- Summit Racing Equipment (online only) — specialist performance and aftermarket options
Final Verdict on the EM775001 Catalytic Converter
If you need a replacement exhaust manifold converter for a 2007-2012 Chevrolet Colorado or GMC Canyon 2.9L, the AutoShack EM775001 Front Exhaust Manifold Catalytic Converter is the correct choice at around $156.35.
The EM775001 Catalytic Converter ranks highly for reliability, maintaining a 4.9 rating from 14 buyers while meeting ISO / IATF 16949 standards and OEM specifications.
Skip it if: you are located in California, Colorado, New York, or Maine, as this unit is not certified for sale in those states.
More Exhaust Manifold Converter explainers and comparisons
- Best Exhaust Manifold Catalytic Converters for Hyundai Santa Fe Sport
- Exhaust Manifold Catalytic Converters for Toyota Camry Compared
- Choosing the Best Exhaust Manifold Catalytic Converter for Nissan Altima
- The Exhaust Manifold Catalytic Converters That Work Best for Honda Civic
- Which Exhaust Manifold Catalytic Converter is Best for a Jeep Wrangler?