# MagnaFlow 49886 Direct Fit OEM Grade Catalytic Converter for 2003-2006 Buick Rainier and More

### Performance Overview

The Magnaflow OEM Grade Catalytic Converters are the perfect replacement for your stock converter. They are crafted from high-quality stainless or aluminized steel for maximum durability. They are seam-welded for unbreakable bonds with no risk of vibrations. The catalytic converters are available with a lap inserted in the point where the neck meets the catalytic converter body. The neck is carefully formed to be sure that it doesn't reach the body where it can cause trouble to the exhaust flow. As an additional safety feature, the Catalytic Converter has a heavy duty heat shield to protect it against extreme heat and give additional stability.

### Key Features

-   Brand: MagnaFlow
-   Part number: 49886
-   Product type: Direct Fit OEM Grade Catalytic Converter
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2004 Buick Rainier, Note: Cxl, Cxl Plus; 5.3L; 2.50"; 2.50"
-   2003 Chevrolet Trailblazer Ext, Note: Ls, Lt, North Face; 5.3L; 2.50"; 2.50"
-   2004 Chevrolet Trailblazer Ext, Note: Ls, Lt, North Face; 5.3L; 2.50"; 2.50"
-   2005 Chevrolet Trailblazer Ext, Note: Ls, Lt; 5.3L; 2.50"; 2.50"
-   2006 Chevrolet Trailblazer Ext, Note: Ls, Lt; 5.3L; 2.50"; 2.50"
-   2003 GMC Envoy Xl, Note: Sle, Slt; 5.3L; 2.50"; 2.50"
-   2004 GMC Envoy Xl, Note: Sle, Slt; 5.3L; 2.50"; 2.50"
-   2005 GMC Envoy Xl, Note: Denali, Sle, Slt; 5.3L; 2.50"; 2.50"

### 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 49886.

**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

-   Direct Fit OEM Grade Catalytic Converter for Buick Rainier
-   49886 fitment
-   MagnaFlow Direct Fit OEM Grade Catalytic Converter
-   2003 Buick Rainier Direct Fit OEM Grade Catalytic Converter

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2004

Buick

Rainier

Cxl, Cxl Plus; 5.3L; 2.50"; 2.50"

2003

Chevrolet

Trailblazer Ext

Ls, Lt, North Face; 5.3L; 2.50"; 2.50"

2004

Chevrolet

Trailblazer Ext

Ls, Lt, North Face; 5.3L; 2.50"; 2.50"

2005

Chevrolet

Trailblazer Ext

Ls, Lt; 5.3L; 2.50"; 2.50"

2006

Chevrolet

Trailblazer Ext

Ls, Lt; 5.3L; 2.50"; 2.50"

2003

GMC

Envoy Xl

Sle, Slt; 5.3L; 2.50"; 2.50"

2004

GMC

Envoy Xl

Sle, Slt; 5.3L; 2.50"; 2.50"

2005

GMC

Envoy Xl

Denali, Sle, Slt; 5.3L; 2.50"; 2.50"

2006

GMC

Envoy Xl

Denali; 5.3L; 2.50"; 2.50"

2003

Isuzu

Ascender

Base, Limited, Ls; 5.3L; 2.50"; 2.50"

2004

Isuzu

Ascender

Limited, Ls; 5.3L; 2.50"; 2.50"

## Details

- **Price:** 1258.6 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit OEM Grade Catalytic Converter
- **Tags:** 2003 Chevrolet Trailblazer Ext, 2003 GMC Envoy Xl, 2003 Isuzu Ascender, 2004 Buick Rainier, 2004 Chevrolet Trailblazer Ext, 2004 GMC Envoy Xl, 2004 Isuzu Ascender, 2005 Chevrolet Trailblazer Ext, 2005 GMC Envoy Xl, 2006 Chevrolet Trailblazer Ext, 2006 GMC Envoy Xl, 49886, Auto Parts, Automotive, Catalytic Converter, Direct Fit OEM Grade Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-49886, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1258.60 CAD | In stock |

## Images

- MagnaFlow 49886 Direct Fit OEM Grade Catalytic Converter

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-buick-rainier-catalytic-converter-49886)
> Updated: 2026-07-16