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Walker 14840 Catalytic Converter
| Brand | Walker 14840 |
|---|---|
| Inlet Outside Diameter | 2.357 |
| Outlet Outside Diameter | 2.250 |
| Clamps Included | No |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Premium |
| Tube Material | Steel |
| Body Shape | Round |
| Inlet Type | 2 bolt welded flange |
| Outlet Type | Pipe connection |
| Body Height | 4.000 |
| Body Length | 8.000 |
| Body Width | 4.000 |
| Heat Shield Attached | Yes |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Substrate Material | Ceramic |
| Converter Quantity | 1 |
| Inlet Mounting Hole Quantity | 1 |
| Inlet Gasket Included | No |
| Inlet Mounting Hardware Included | No |
| Overall Length | 24.550 |
| Sensor Port Count | 1 |
| New York Certified | No |
| Heat Shield Material | Stainless steel |
| Oxygen Sensor Location | Pre converter |
| Clamp Qty | None |
| Shape | Round |
| Product line | EPA |
| Fits | Mazda · 4 vehicles |
EPA-compliant design. Built for emissions-focused replacement on OBDII vehicles.
Direct-fit construction. Specific-fit exhaust replacement with welded flange inlet and pipe outlet.
Stainless steel body. Round housing with an integrated heat shield for added durability.
Cross-references AP Exhaust 644040, 21-337 and PYH62055XA for the same application. See all 3.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
Walker EPA 14840 is a specific-fit catalytic converter built for OBDII vehicles and engineered to meet EPA standards. It uses a ceramic substrate, a stainless steel body, and a welded flange inlet for a direct-fit exhaust repair.
Fits 2018-2021 Mazda CX-5, N/A. This part cross-references AP Exhaust 644040 for the same application.
Key Features
- Premium-grade catalytic converter with specific-fit application
- Ceramic substrate for exhaust aftertreatment performance
- Stainless steel body with stainless steel heat shield
- 2-bolt welded flange inlet and pipe connection outlet
- Integrated heat shield and one pre-converter sensor port
Detailed Description
Walker EPA 14840 is a direct-fit catalytic converter for the Mazda CX-5 in 2018-2021 model years. The round stainless steel housing measures 24.550 inches overall and is paired with a ceramic substrate to support emissions control in EPA-compliant applications. The pre-converter oxygen sensor location and single sensor port align with the exhaust system layout for this specific fitment.
Walker’s EPA line focuses on emissions-compliant replacement converters for import and domestic OBDII vehicles. For buyers searching for a Mazda CX-5 catalytic converter, Walker 14840 provides a specific-fit solution with the inlet and outlet dimensions needed for a proper exhaust connection. The part number 14840 is also referenced by AP Exhaust 644040 for the same application.
What It Is Used For
- Replacing a worn or failed catalytic converter
- Restoring exhaust emissions control performance
- Addressing exhaust leaks at the converter connection points
- Correcting check-engine concerns related to catalyst efficiency
- Repairing a damaged or corroded exhaust converter assembly
Installation Notes and Tips
Verify the 2-bolt welded flange inlet, pipe connection outlet, and sensor port count before installation. This converter does not include clamps or mounting hardware, so confirm the existing exhaust connection components are serviceable before beginning the repair.
Quality Assurance
Walker EPA converters are built to comply with EPA standards for OBDII applications. The stainless steel construction and ceramic substrate support a replacement designed for emissions-focused exhaust service.
| Year | Make | Model | Drive Type | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2021 | Mazda | CX-5 | AWD | 2.5L | L4 | EPA |
| 2020 | Mazda | CX-5 | AWD | 2.5L | L4 | EPA |
| 2019 | Mazda | CX-5 | AWD | 2.5L | L4 | EPA |
| 2018 | Mazda | CX-5 | AWD | 2.5L | L4 | EPA |
| No rows match your filter. | ||||||