# MagnaFlow 4551039 California Direct Fit Catalytic Converter (2.25" ID/2.25" OD) for 2001-2005 Buick Rendezvous and More

### Performance Overview

Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty.

### Key Features

-   Brand: MagnaFlow
-   Part number: 4551039
-   Product type: California Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2002 Buick Rendezvous, Note: Cx, Cx Plus, Cxl, Cxl Plus; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2003 Buick Rendezvous, Note: Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2004 Buick Rendezvous, Note: Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2005 Buick Rendezvous, Note: Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2001 Pontiac Aztek, Note: Base, Gt; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2002 Pontiac Aztek, Note: Base; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2003 Pontiac Aztek, Note: Base; 3.4L; 2.25"; 2.25"; All Wheel Drive
-   2004 Pontiac Aztek, Note: Base, Rally; 3.4L; 2.25"; 2.25"; All Wheel Drive

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

**What part number is this?**  
The listed part number is 4551039.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

### Common Searches

-   California Direct Fit Catalytic Converter (2.25" ID/2.25" OD) for Buick Rendezvous
-   4551039 fitment
-   MagnaFlow California Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
-   2001 Buick Rendezvous California Direct Fit Catalytic Converter (2.25" ID/2.25" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2002

Buick

Rendezvous

Cx, Cx Plus, Cxl, Cxl Plus; 3.4L; 2.25"; 2.25"; All Wheel Drive

2003

Buick

Rendezvous

Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive

2004

Buick

Rendezvous

Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive

2005

Buick

Rendezvous

Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25"; All Wheel Drive

2001

Pontiac

Aztek

Base, Gt; 3.4L; 2.25"; 2.25"; All Wheel Drive

2002

Pontiac

Aztek

Base; 3.4L; 2.25"; 2.25"; All Wheel Drive

2003

Pontiac

Aztek

Base; 3.4L; 2.25"; 2.25"; All Wheel Drive

2004

Pontiac

Aztek

Base, Rally; 3.4L; 2.25"; 2.25"; All Wheel Drive

2005

Pontiac

Aztek

Base, Rally; 3.4L; 2.25"; 2.25"; All Wheel Drive

## Details

- **Price:** 2712.95 CAD
- **Vendor:** MagnaFlow
- **Type:** California Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
- **Tags:** 2001 Pontiac Aztek, 2002 Buick Rendezvous, 2002 Pontiac Aztek, 2003 Buick Rendezvous, 2003 Pontiac Aztek, 2004 Buick Rendezvous, 2004 Pontiac Aztek, 2005 Buick Rendezvous, 2005 Pontiac Aztek, 4551039, Auto Parts, Automotive, California Direct Fit Catalytic Converter (2.25" ID/2.25" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4551039, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2712.95 CAD | In stock |

## Images

- MagnaFlow 4551039 California Direct Fit Catalytic Converter (2.25" ID/2.25" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-buick-rendezvous-catalytic-converter-carb-4551039)
> Updated: 2026-07-16