# MagnaFlow 51233 Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD) for 1997-2007 Ford Freestar 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: 51233
-   Product type: Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2004 Ford Freestar, Note: Base, Limited, S, Se, Sel, Ses; 3.9L, 4.2L; 1.75"; 1.75"
-   2005 Ford Freestar, Note: Base, Limited, S, Se, Sel, Ses; 3.9L, 4.2L; 1.75"; 1.75"
-   2006 Ford Freestar, Note: Base, Limited, Se, Sel; 3.9L, 4.2L; 1.75"; 1.75"
-   2007 Ford Freestar, Note: Base, Limited, Se, Sel; 3.9L, 4.2L; 1.75"; 1.75"
-   2000 Honda Insight, Note: Base; 1.0L; 1.75"; 1.75"
-   2001 Honda Insight, Note: Base; 1.0L; 1.75"; 1.75"
-   1997 Plymouth Prowler, Note: Base; 3.5L; 1.75"; 1.75"
-   1999 Plymouth Prowler, Note: Base; 3.5L; 1.75"; 1.75"

### 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 51233.

**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 (1.75" ID/1.75" OD) for Ford Freestar
-   51233 fitment
-   MagnaFlow Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD)
-   1997 Ford Freestar Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2004

Ford

Freestar

Base, Limited, S, Se, Sel, Ses; 3.9L, 4.2L; 1.75"; 1.75"

2005

Ford

Freestar

Base, Limited, S, Se, Sel, Ses; 3.9L, 4.2L; 1.75"; 1.75"

2006

Ford

Freestar

Base, Limited, Se, Sel; 3.9L, 4.2L; 1.75"; 1.75"

2007

Ford

Freestar

Base, Limited, Se, Sel; 3.9L, 4.2L; 1.75"; 1.75"

2000

Honda

Insight

Base; 1.0L; 1.75"; 1.75"

2001

Honda

Insight

Base; 1.0L; 1.75"; 1.75"

1997

Plymouth

Prowler

Base; 3.5L; 1.75"; 1.75"

1999

Plymouth

Prowler

Base; 3.5L; 1.75"; 1.75"

2000

Plymouth

Prowler

Base; 3.5L; 1.75"; 1.75"

2001

Plymouth

Prowler

Base; 3.5L; 1.75"; 1.75"

2000

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

2001

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

2002

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

2003

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

2004

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

2005

Toyota

Celica

Gt; 1.8L; 1.75"; 1.75"

## Details

- **Price:** 310.3 CAD
- **Vendor:** MagnaFlow
- **Type:** Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD)
- **Tags:** 1997 Plymouth Prowler, 1999 Plymouth Prowler, 2000 Honda Insight, 2000 Plymouth Prowler, 2000 Toyota Celica, 2001 Honda Insight, 2001 Plymouth Prowler, 2001 Toyota Celica, 2002 Toyota Celica, 2003 Toyota Celica, 2004 Ford Freestar, 2004 Toyota Celica, 2005 Ford Freestar, 2005 Toyota Celica, 2006 Ford Freestar, 2007 Ford Freestar, 51233, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51233, Muffler, Performance Exhaust, Performance Parts, Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD), Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 310.30 CAD | In stock |

## Images

- MagnaFlow 51233 Universal OEM Grade Catalytic Converter (1.75" ID/1.75" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-ford-freestar-catalytic-converter-51233)
> Updated: 2026-07-16