# MagnaFlow 51333 Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD) for 2000-2005 Buick Lesabre 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: 51333
-   Product type: Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2000 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2001 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2002 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2003 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2004 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2005 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00"
-   2000 Buick Park Avenue, Note: Base; 3.8L; 3.00"; 3.00"
-   2001 Buick Park Avenue, Note: Base; 3.8L; 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 51333.

**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 (3" ID/3" OD) for Buick Lesabre
-   51333 fitment
-   MagnaFlow Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD)
-   2000 Buick Lesabre Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2000

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2001

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2002

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2003

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2004

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2005

Buick

Lesabre

Custom, Limited; 3.8L; 3.00"; 3.00"

2000

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2001

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2002

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2003

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2004

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2005

Buick

Park Avenue

Base; 3.8L; 3.00"; 3.00"

2000

Pontiac

Bonneville

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

2001

Pontiac

Bonneville

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

2002

Pontiac

Bonneville

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

2003

Pontiac

Bonneville

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

2004

Pontiac

Bonneville

Gxp, Se, Sle; 3.8L, 4.6L; 3.00"; 3.00"

2005

Pontiac

Bonneville

Gxp, Se, Sle; 3.8L, 4.6L; 3.00"; 3.00"

## Details

- **Price:** 417.43 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD)
- **Tags:** 2000 Buick Lesabre, 2000 Buick Park Avenue, 2000 Pontiac Bonneville, 2001 Buick Lesabre, 2001 Buick Park Avenue, 2001 Pontiac Bonneville, 2002 Buick Lesabre, 2002 Buick Park Avenue, 2002 Pontiac Bonneville, 2003 Buick Lesabre, 2003 Buick Park Avenue, 2003 Pontiac Bonneville, 2004 Buick Lesabre, 2004 Buick Park Avenue, 2004 Pontiac Bonneville, 2005 Buick Lesabre, 2005 Buick Park Avenue, 2005 Pontiac Bonneville, 51333, Auto Parts, Automotive, Catalytic Converter, Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51333, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 417.43 CAD | In stock |

## Images

- MagnaFlow 51333 Direct Fit OEM Grade Catalytic Converter (3" ID/3" OD)

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> Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-buick-lesabre-catalytic-converter-51333)
> Updated: 2026-06-13