OE Quality
60-Day Returns

Walker 16213 Catalytic Converter
Walker EPA Direct-Fit Catalytic Converter
Walker EPA 16213 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is a fitment-focused replacement for 1999-2001 Mazda Protege models, including Federal and California emission configurations, with a stainless steel body and ceramic substrate.
The Walker Ultra Direct-Fit Catalytic Converter line is designed for OBDII vehicles and emphasizes OE-style fitment for straightforward exhaust replacement. Part number 16213 is a direct-fit unit with welded flange connections and a round converter body for a precise installation profile.
Key Features
- Direct-fit catalytic converter for specific vehicle applications
- EPA-compliant design for 1999-2001 Mazda Protege
- Stainless steel body with ceramic substrate
- 5-bolt welded flange inlet and 3-bolt welded flange outlet
- Single converter design with one inlet and one outlet
- Round body shape with compact dimensions for OE-style packaging
- No oxygen sensor port location
- Part number 16213
Fitment Details
Fits 1999-2001 Mazda Protege, N/A. This application covers Federal and California emission models. It is 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 your state aftermarket converter regulations for details.
This part cross-references Eastern Catalytic 40433 and 50217 for the same application.
What It Helps Address
- Failed catalytic converter emissions testing
- Check engine light concerns related to converter efficiency
- Restricted exhaust flow from a deteriorated converter
- Exhaust leaks at worn flange connections
- Replacement needs for a direct-fit Mazda Protege exhaust repair
Installation Notes
Exhaust gasket is recommended during installation. Verify flange orientation, overall length, and emission legality before installation. Because this unit has no oxygen sensor port location, confirm the vehicle’s exhaust layout matches the converter configuration before ordering. Part number 16213 is intended for specific 1999-2001 Mazda Protege applications only.
Quality Assurance
Walker EPA converters are built to comply with EPA standards and are intended for OBDII import and domestic applications where listed. The Ultra Direct-Fit line focuses on premium performance with application-specific fitment and compliance-oriented construction.
| Brand | Walker |
| Part Number | 16213 |
| Position | EPA |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Body Height | 4.125 |
| Body Length | 5.25 |
| Body Width | 4.125 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Overall Length | 7.75 |
| Air Tube | No |
| Air Tube Count | No |
| Body Height | 4.125 |
| Body Length | 6.000 |
| Body Material | Stainless steel |
| Body Shape | Round |
| Body Width | 4.125 |
| Converter Quantity | 1 |
| Fitment | Direct fit |
| Inlet 1 Type | 5 bolt welded flange |
| Inlet Connection Type | 5 bolt welded flange |
| Inlet Count | 1 |
| Inlet Type | 5 bolt welded flange |
| Max Year Covered | 2001 |
| Min Year Covered | 1999 |
| Most Popular Make / Model | Mazda protege |
| Most Popular Year | 2000 |
| Outlet 1 Type | 3 bolt welded flange |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Mazda | Protege | 1.6L | 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 |
| 2000 | Mazda | Protege | 1.6L | 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 |
| 2000 | Mazda | Protege | 1.8L | 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 |
| 1999 | Mazda | Protege | 1.6L | 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 |
| 1999 | Mazda | Protege | 1.8L | 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.