OE Quality
60-Day Returns

Walker 16878 Catalytic Converter with Integrated Exhaust Manifold - Front Right
Walker EPA Manifold Converter for Mazda 6
Walker EPA Part Number 16878 is a premium catalytic converter with integrated exhaust manifold for the front right position on select Mazda 6 models. It is built for 2006-2008 Mazda 6 applications and is designed to meet EPA emissions requirements while supporting dependable exhaust flow and OBDII compliance.
Key Features
- Premium grade catalytic converter with integrated exhaust manifold
- EPA-compliant design for OBDII-equipped vehicles
- Fits 2006-2008 Mazda 6, front right
- Walker EPA product line for import and domestic emissions applications
- Part number 16878 for direct catalog identification
Product Details
Walker EPA 16878 is part of the Walker Ultra EPA-Compliant Manifold Converter line, which focuses on emissions-system replacement for 1996-and-newer vehicles. This unit combines the manifold and catalytic converter into one assembly for the front right side, making it a direct-fit solution for Mazda 6 owners replacing a worn or failed emissions component. The premium construction supports consistent performance while maintaining compliance with EPA requirements.
This part cross-references AJ482055XC for the same application.
Common Repair Uses
- Check engine light related to catalyst efficiency or exhaust flow
- Failed emissions inspection on a 2006-2008 Mazda 6
- Cracked or leaking exhaust manifold assembly
- Restricted exhaust flow from a deteriorated converter
- Noise or odor caused by a damaged front right exhaust assembly
Installation Notes
Fits 2006-2008 Mazda 6, front right. Verify the vehicle’s emissions configuration, engine layout, and OE-style mounting points before installation. Because this is an integrated manifold converter, careful alignment with the exhaust system and oxygen sensor locations is important for proper fitment and emissions performance.
Quality Assurance
Walker Ultra EPA-Compliant Manifold Converters are engineered for emissions-system replacement on OBDII vehicles and are built to support EPA compliance requirements. Part number 16878 is cataloged as a premium-grade replacement for the specified Mazda 6 fitment.
| Brand | Walker |
|---|---|
| Part Number | 16878 |
| Position | EPA, Front Right |
| Grade Type | Premium |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Mazda | 6 | 3.0L | V6 | Front Right | EPA |
| 2007 | Mazda | 6 | 3.0L | V6 | Front Right | EPA |
| 2006 | Mazda | 6 | 3.0L | V6 | Front Right | 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.