OE Quality
60-Day Returns

MagnaFlow 447225 Catalytic Converter - Rear
Overview of MagnaFlow Direct-Fit Catalytic Converter
The MagnaFlow Direct-Fit CALIFORNIA OBDII CONVERTERS catalytic converter (part number 447225) is engineered specifically for Toyota 4Runner models. Designed to meet California emissions standards, this converter offers a direct-fit solution with stainless steel construction and a bolt-on inlet and outlet for straightforward installation.
- Specific fit for Toyota 4Runner
- Stainless steel tube and body material for durability
- Ceramic substrate for efficient catalytic conversion
- Bolt-on inlet and outlet for direct-fit installation
- Attached aluminized steel heat shield for thermal protection
- Post-converter oxygen sensor location
- Includes hangers and mounting hardware
- Overall length of 31.25 inches
About the Direct-Fit CALIFORNIA OBDII CONVERTERS Line
The Direct-Fit CALIFORNIA OBDII CONVERTERS product line by MagnaFlow is designed to comply with California’s strict emissions regulations while providing a direct replacement for factory catalytic converters. This line ensures compatibility with OBDII systems and maintains proper oxygen sensor placement, making it suitable for vehicles requiring California Air Resources Board (CARB) compliance. Part number 447225 is part of this line, tailored for the Toyota 4Runner to meet regulatory and performance standards.
Product Features and Specifications
This catalytic converter features a stainless steel body and tube material, providing resistance to corrosion and heat. The ceramic substrate inside facilitates effective conversion of harmful exhaust gases. Both the inlet and outlet are bolt-on types, allowing for a direct-fit installation without modifications. The attached heat shield, made from aluminized steel, helps protect surrounding components from excessive heat. The converter includes hangers and mounting hardware to support secure installation. The oxygen sensor is positioned post-converter to ensure accurate emissions monitoring.
Common Applications and Problem Solving
- Replacement for a failing or clogged catalytic converter on Toyota 4Runner
- Restores proper emissions control to pass California smog inspections
- Eliminates exhaust leaks caused by damaged or corroded converters
- Maintains OBDII system functionality with correct oxygen sensor placement
- Improves exhaust flow and reduces harmful emissions
Installation Notes and Tips
Part number 447225 is designed for a direct-fit installation on Toyota 4Runner models, minimizing the need for modifications. The bolt-on inlet and outlet simplify the replacement process. While the converter includes hangers and mounting hardware, an inlet gasket and clamps are not included and may need to be sourced separately. Ensure the oxygen sensor is reinstalled in the post-converter location to maintain proper emissions system operation.
Quality Assurance and Warranty
MagnaFlow catalytic converters are manufactured with high-quality stainless steel and ceramic substrates to meet emissions standards and provide durability. This product is engineered to comply with California OBDII requirements. Warranty details are provided by MagnaFlow and typically cover defects in materials and workmanship; please refer to MagnaFlow’s official warranty documentation for specific terms related to part number 447225.
| Brand | MagnaFlow |
| Part Number | 447225 |
| Position | Direct-Fit CALIFORNIA OBDII CONVERTERS, Rear |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Tube Material | Stainless steel |
| Inlet Type | Bolt-on |
| Outlet Type | Bolt-on |
| Heat Shield Attached | Yes |
| Body Material | Stainless steel |
| Substrate Material | Ceramic |
| Inlet Gasket Included | No |
| Overall Length | 31.25 |
| Air Tube Count | 0 |
| Air Tube Adaptable | No |
| Clamp Included | No |
| Converter Quantity | 1 |
| Finish | Stainless steel |
| Hangers Included | Yes |
| Heat Shield Material | Aluminized steel |
| Oxygen Sensor Location | Post converter |
| Type | Direct-fit |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Toyota | 4Runner | 3.4L | V6 | Rear | Certification Level : LEV1 LEV; CARB Executive Order D-193-103; Engine Family Number 2TYXT03.4FFP; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2001 | Toyota | 4Runner | 3.4L | V6 | Rear | Certification Level : LEV1 LEV; CARB Executive Order D-193-103; Engine Family Number 1TYXT03.4FFP; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2000 | Toyota | 4Runner | 3.4L | V6 | Rear | Certification Level : LEV1 LEV; CARB Executive Order D-193-103; Engine Family Number YTYXT03.4FFR; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 1999 | Toyota | 4Runner | 3.4L | V6 | Rear | Certification Level : LEV1 LEV; CARB Executive Order D-193-103; Engine Family Number XTYXT03.4GXS; Direct-Fit CALIFORNIA OBDII CONVERTERS |
* 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.