Dorman 679-542 Catalytic Converter
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
$631.61
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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 is precision-engineered to match the original equipment fit and function on specific vehicle years, makes and models for a reliable replacement.
- Direct replacement - this catalytic converter is designed to match the fit and performance of the original equipment on specific vehicles
- Durable construction - manufactured within strict tolerances for reliable longevity
- Cost-effective solution - offers original equipment functionality at a competitive price
- Trustworthy value - backed by team of engineers and quality control experts in the United States
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2011 | Buick | LaCrosse | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2010 | Buick | Allure | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
| 2010 | Buick | LaCrosse | V6 217 3.6L (3564cc) | Front | CARB Compliant: No |
Product Specifications
| Air Tube Count: | 0 |
|---|---|
| Body Height: | 7 in |
| Body Length: | 4 in |
| Body Material: | Stainless Steel |
| Body Shape: | Round |
| Body Width: | 4 in |
| California Air Resources Board (CARB) Certified: | No |
| California Air Resources Board Approved: | No |
| CARB Compliant: | No |
| Color: | Metallic Gray |
| Converter Body Length: | 4 in |
| Converter Body Material: | Stainless Steel |
| Exhaust Manifold Inlet Port Shape: | Round |
| Finish: | Natural |
| Gasket Or Seal Included: | Yes |
| Grade Type: | Standard Replacement |
| Heat Shield Attached: | Yes |
| Inlet Gasket Included: | Yes |
| Inlet Inside Diameter: | 2.5 in |
| Inlet Mounting Hardware Included: | Yes |
| Inlet Mounting Hole Quantity: | 3 |
| Inlet Port Shape: | Round |
| Inlet Quantity: | 1 |
| Inlet Type: | Flanged |
| Installation Hardware Included: | Yes |
| Item Grade: | Standard Replacement |
| Material: | Stainless Steel |
| Mounting Hardware Included: | Yes |
| New York Certified: | No |
| Outlet Gasket Included: | Yes |
| Outlet Inside Diameter: | 2.5 in |
| Outlet Mounting Hardware Included: | Yes |
| Outlet Mounting Hole Quantity: | 5 |
| Outlet Outside Diameter: | 4 in |
| Outlet Port Shape: | Round |
| Outlet Quantity: | 1 |
| Outlet Type: | Flanged |
| Overall Length: | 9 in |
| Package Contents: | 1 Catalytic Converter; 1 Heat Shield; 1 Gasket; 6 Washers; 2 Screws; 1 Gasket |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Sensor Port Count: | 1 |
| Substrate Material: | Ceramic |
| Tube Wall Thickness: | 0.375 in |
| Type: | Flanged |
| Universal Or Specific Fit: | Specific |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 19418937 | GENERAL MOTORS |
| 25798276 | GENERAL MOTORS |