# MagnaFlow 51559 Universal OEM Grade Catalytic Converter (3" ID/3" OD) for 1996-2005 Chevrolet Express 3500 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: 51559
-   Product type: Universal OEM Grade Catalytic Converter (3" ID/3" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1996 Chevrolet Express 3500, Note: Base, Ls; 7.4L; 3.00"; 3.00"
-   1997 Chevrolet Express 3500, Note: Base, Ls; 7.4L; 3.00"; 3.00"
-   1998 Chevrolet Express 3500, Note: Base, Ls; 7.4L; 3.00"; 3.00"
-   1999 Chevrolet Express 3500, Note: Base, Ls; 7.4L; 3.00"; 3.00"
-   2000 Chevrolet Express 3500, Note: Base, Ls; 7.4L; 3.00"; 3.00"
-   2000 Ford F-250 Super Duty, Note: Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"
-   2001 Ford F-250 Super Duty, Note: Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"
-   2002 Ford F-250 Super Duty, Note: Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

### 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 51559.

**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

-   Universal OEM Grade Catalytic Converter (3" ID/3" OD) for Chevrolet Express 3500
-   51559 fitment
-   MagnaFlow Universal OEM Grade Catalytic Converter (3" ID/3" OD)
-   1996 Chevrolet Express 3500 Universal OEM Grade Catalytic Converter (3" ID/3" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1996

Chevrolet

Express 3500

Base, Ls; 7.4L; 3.00"; 3.00"

1997

Chevrolet

Express 3500

Base, Ls; 7.4L; 3.00"; 3.00"

1998

Chevrolet

Express 3500

Base, Ls; 7.4L; 3.00"; 3.00"

1999

Chevrolet

Express 3500

Base, Ls; 7.4L; 3.00"; 3.00"

2000

Chevrolet

Express 3500

Base, Ls; 7.4L; 3.00"; 3.00"

2000

Ford

F-250 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2001

Ford

F-250 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2002

Ford

F-250 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2003

Ford

F-250 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2000

Ford

F-350 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2001

Ford

F-350 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2002

Ford

F-350 Super Duty

Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2003

Ford

F-350 Super Duty

King Ranch, Lariat, Xl, Xlt; 7.3L; 3.00"; 3.00"

2005

Pontiac

Bonneville

Se, Sle; 3.8L; 3.00"; 3.00"

## Details

- **Price:** 450.15 CAD
- **Vendor:** MagnaFlow
- **Type:** Universal OEM Grade Catalytic Converter (3" ID/3" OD)
- **Tags:** 1996 Chevrolet Express 3500, 1997 Chevrolet Express 3500, 1998 Chevrolet Express 3500, 1999 Chevrolet Express 3500, 2000 Chevrolet Express 3500, 2000 Ford F-250 Super Duty, 2000 Ford F-350 Super Duty, 2001 Ford F-250 Super Duty, 2001 Ford F-350 Super Duty, 2002 Ford F-250 Super Duty, 2002 Ford F-350 Super Duty, 2003 Ford F-250 Super Duty, 2003 Ford F-350 Super Duty, 2005 Pontiac Bonneville, 51559, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51559, Muffler, Performance Exhaust, Performance Parts, Universal OEM Grade Catalytic Converter (3" ID/3" OD), Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 450.15 CAD | In stock |

## Images

- MagnaFlow 51559 Universal OEM Grade Catalytic Converter (3" ID/3" OD)

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> Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-chevrolet-express-3500-catalytic-converter-51559)
> Updated: 2026-06-13