Dorman 674-048 Catalytic Converter with Integrated Exhaust Manifold
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$469.11
Couldn't load pickup availability
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This catalytic converter with integrated exhaust manifold - a.k.a. manifold converter - is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.
- Direct replacement - this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles
- Convenient kit - includes gaskets and downpipe hardware to simplify installation
- Durable construction -manufactured within strict tolerances for reliable longevity
- Trustworthy value - backed by team of engineers and quality control experts in the United States
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2020 | Chevrolet | Impala | V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2019 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2019 | Chevrolet | Impala | V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2018 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2018 | Chevrolet | Impala | V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2017 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2017 | Chevrolet | Impala | V6 217 3.6L (3564cc); Engine Desg. LFR | Front | CARB Compliant: No |
| 2017 | Chevrolet | Impala | V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2016 | Buick | LaCrosse | FWD; V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2016 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2016 | Chevrolet | Impala | V6 217 3.6L (3564cc); Engine Desg. LFR | Front | CARB Compliant: No |
| 2016 | Chevrolet | Impala | V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2015 | Buick | LaCrosse | FWD; V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2015 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2015 | Chevrolet | Impala | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2014 | Buick | LaCrosse | FWD; V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2014 | Cadillac | XTS | Naturally Aspirated; V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2014 | Chevrolet | Impala | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2013 | Buick | LaCrosse | FWD; V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
| 2013 | Cadillac | XTS | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2012 | Buick | LaCrosse | FWD; V6 217 3.6L (3564cc); Engine Desg. LFX | Front | CARB Compliant: No; w/PZEV California Emissions |
Product Specifications
| Air Tube Count: | 0 |
|---|---|
| California Air Resources Board (CARB) Certified: | No |
| Color: | Metallic Gray |
| Converter Body Length: | 4 in |
| Gasket Or Seal Included: | Yes |
| Grade Type: | Standard Replacement |
| Inlet Mounting Hardware Included: | No |
| Inlet Mounting Hole Quantity: | 4 |
| Inlet Port Shape: | Oval |
| Inlet Quantity: | 1 |
| Material: | Stainless Steel |
| Outlet Mounting Hole Quantity: | 2 |
| Outlet Quantity: | 1 |
| Outlet Type: | Flanged |
| Overall Length: | 16 in |
| Package Contents: | 1 Exhaust Manifold; 1 Inlet Gasket; 1 Outlet Gasket; 2 Bolts; 2 Washers |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Sensor Port Count: | 2 |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 20894010 | GENERAL MOTORS |
| 20926629 | GENERAL MOTORS |
| 20929216 | GENERAL MOTORS |
| 84216838 | GENERAL MOTORS |