OE Quality
60-Day Returns

Walker 16553 Catalytic Converter
Overview of Walker EPA Catalytic Converter 16553
The Walker EPA Catalytic Converter 16553 is designed specifically for Volkswagen Passat models from 2006 to 2008. This direct fit catalytic converter ensures proper exhaust flow and emission control with its durable stainless steel construction and precise dimensions.
- Direct fit for Volkswagen Passat (2006-2008)
- Stainless steel body with 4-inch round shape
- Single inlet and outlet with 4 bolt welded flange inlet
- Overall length of 62 inches for exact fitment
- Regular grade type with two converters inside
Product Features and Specifications
The Walker EPA 16553 catalytic converter features a 4-inch round stainless steel body measuring 4 inches in both height and width. It includes one inlet and one outlet, with the inlet designed as a 4 bolt welded flange and an inside diameter of 4 inches. The outlet inside diameter measures 2.25 inches. This part is a direct fit replacement, engineered to match the original equipment specifications for Volkswagen Passat vehicles from model years 2006 through 2008. The converter contains two catalytic converter units inside the body, providing effective emission control. The overall length of the unit is 62 inches, ensuring proper installation without modification.
Walker EPA Product Line Details
The EPA product line by Walker focuses on meeting Environmental Protection Agency standards for emission control components. This catalytic converter is part of that line, designed to provide reliable performance and compliance with federal emission regulations. While it is not California Air Resources Board (CARB) certified, it meets regular grade requirements for emission reduction and durability.
Applications and Common Issues Addressed
- Replacement for damaged or clogged catalytic converters on Volkswagen Passat (2006-2008)
- Restores proper exhaust flow and reduces harmful emissions
- Helps resolve check engine light issues related to catalytic converter failure
- Improves engine performance affected by exhaust restrictions
- Prevents exhaust leaks caused by cracked or corroded converter bodies
Installation Notes and Tips
This catalytic converter is designed as a direct fit replacement, compatible with Volkswagen Passat models from 2006 to 2008. The 4 bolt welded flange inlet allows for straightforward installation using existing mounting points. Ensure all connections are properly sealed to prevent exhaust leaks. It is recommended to inspect surrounding exhaust components during installation for wear or damage.
Quality Assurance and Warranty
Walker catalytic converters are manufactured with stainless steel bodies to resist corrosion and withstand high temperatures. The EPA product line is engineered to meet federal emission standards. While specific warranty details for part number 16553 are not provided here, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.
| Brand | Walker |
| Part Number | 16553 |
| Position | EPA |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Body Height | 4 |
| Body Width | 4 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Inside Diameter | 2.25 |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Overall Length | 62 |
| Air Tube | No |
| Air Tube Count | No |
| Body Height | 4.000 |
| Body Material | Stainless steel |
| Body Shape | 4" round |
| Body Width | 4.000 |
| Converter Quantity | 2 |
| Fitment | Direct fit |
| Inlet 1 Type | 4 bolt welded flange |
| Inlet Connection Type | 4 bolt welded flange |
| Inlet Count | 1 |
| Inlet Diameter 1 | 4.000 |
| Inlet Diameter Designation | Inside diameter |
| Inlet Type | 4 bolt welded flange |
| Max Year Covered | 2008 |
| Min Year Covered | 2006 |
| Most Popular Make / Model | Volkswagen passat |
| Most Popular Year | 2006 |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Volkswagen | Passat | Automatic | 2.0L | L4 | N/A | with Engine Code BPY; Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
| 2007 | Volkswagen | Passat | Automatic | 2.0L | L4 | N/A | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
| 2006 | Volkswagen | Passat | Automatic | 2.0L | L4 | N/A | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.