OE Quality
60-Day Returns

Walker 54965 Catalytic Converter
Walker EPA Direct-Fit Catalytic Converter
Walker EPA 54965 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for 2015-2018 Hyundai Sonata models listed below, with a stainless steel body and ceramic substrate for OE-style exhaust system replacement.
Key Features
- Direct-fit, specific-fit design for easier exhaust replacement
- EPA-compliant construction for federal-emissions applications
- Stainless steel body for corrosion resistance
- Ceramic substrate material
- Round body shape with 2-bolt welded flange inlet and outlet
- 2-inch outlet outside diameter
- Walker EPA 54965 part number for application matching
Product Details
Walker EPA 54965 is part of the Walker Ultra Direct-Fit Catalytic Converter line, which focuses on OE-style fitment for import and domestic OBDII vehicles. This converter is built for the exhaust system on 2015-2018 Hyundai Sonata and 2015-2017 Hyundai Sonata Federal Emission System applications, with fitment notes that include EPA use only and no CARB certification. The design uses a stainless steel housing, a ceramic substrate, and welded 2-bolt flange connections to match the listed vehicle configurations. This part cross-references Eastern Catalytic 40897 for the same application.
Vehicle Fitment
- Fits 2018 Hyundai Sonata, N/A
- Fits 2015-2017 Hyundai Sonata, N/A, with Federal Emission System; 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 state aftermarket converter regulations for details. Exhaust gasket is recommended. Additional parts needed to complete installation: 31337 and 31534. Ultra Direct Fit Type; EPA
Common Replacement Reasons
- Failed catalytic converter efficiency codes
- Exhaust emissions test failure
- Rattling or damaged converter substrate
- Corrosion or exhaust leakage at the converter body
- Restricted exhaust flow from a worn converter
Installation Notes
Verify the vehicle’s emissions package before ordering, since this part is listed for EPA federal-emissions applications and is not CARB certified. The 2-bolt welded flange connections and 2-inch outlet should be matched to the existing exhaust layout, and the fitment notes call for an exhaust gasket and additional parts 31337 and 31534 to complete installation on the listed Hyundai Sonata applications. Confirm sensor and flange locations against the vehicle before installation.
Quality Assurance
Walker EPA catalytic converters are built for EPA standards and direct-fit replacement use on listed OBDII vehicles. The Walker EPA 54965 is designed to provide a compliant replacement option for the specified Hyundai Sonata applications while maintaining the fit and construction expected in an exhaust system repair.
| Brand | Walker |
|---|---|
| Part Number | 54965 |
| Position | EPA |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Body Height | 4 |
| Body Length | 8 |
| Body Width | 4 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Overall Length | 47 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 1 |
| Inlet 1 Type | 2 bolt welded flange |
| Inlet Type | 2 bolt welded flange |
| Outlet 1 Outside Diameter | 2 |
| Outlet 1 Type | 2 bolt welded flange |
| Outlet Outside Diameter | 2 |
| Outlet Type | 2 bolt welded flange |
| Oxygen Sensor Location | No port location |
| Substrate Material | Ceramic |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Hyundai | Sonata | 2.4L | L4 | N/A | EPA | |
| 2017 | Hyundai | Sonata | 2.4L | L4 | N/A | with Federal Emission System; 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; Additional part(s) needed to complete installation - 31337 and 31534; Ultra Direct Fit Type; EPA | |
| 2016 | Hyundai | Sonata | 2.4L | L4 | N/A | with Federal Emission System; 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; Additional part(s) needed to complete installation - 31337 and 31534; Ultra Direct Fit Type; EPA | |
| 2015 | Hyundai | Sonata | 2.4L | L4 | GAS | N/A | with Federal Emission System; 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; Additional part(s) needed to complete installation - 31337 and 31534; 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.