# MagnaFlow 5551209 California Universal Catalytic Converter for 2011 Chevrolet Silverado 2500 Hd 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: 5551209
-   Product type: California Universal Catalytic Converter
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2011 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L
-   2011 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L
-   2011 GMC Sierra 2500 Hd, Note: Denali, Sle, Slt, Wt; 6.0L
-   2011 GMC Sierra 3500 Hd, Note: Denali, Sle, Slt, Wt; 6.0L

### 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 5551209.

**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 Universal Catalytic Converter for Chevrolet Silverado 2500 Hd
-   5551209 fitment
-   MagnaFlow California Universal Catalytic Converter
-   2011 Chevrolet Silverado 2500 Hd California Universal Catalytic Converter

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2011

Chevrolet

Silverado 2500 Hd

Lt, Ltz, Wt; 6.0L

2011

Chevrolet

Silverado 3500 Hd

Lt, Ltz, Wt; 6.0L

2011

GMC

Sierra 2500 Hd

Denali, Sle, Slt, Wt; 6.0L

2011

GMC

Sierra 3500 Hd

Denali, Sle, Slt, Wt; 6.0L

## Details

- **Price:** 2005.35 CAD
- **Vendor:** MagnaFlow
- **Type:** California Universal Catalytic Converter
- **Tags:** 2011 Chevrolet Silverado 2500 Hd, 2011 Chevrolet Silverado 3500 Hd, 2011 GMC Sierra 2500 Hd, 2011 GMC Sierra 3500 Hd, 5551209, Auto Parts, Automotive, California Universal Catalytic Converter, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-5551209, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2005.35 CAD | In stock |

## Images

- MagnaFlow 5551209 California Universal Catalytic Converter

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-silverado-2500-hd-catalytic-converter-carb-5551209)
> Updated: 2026-07-16