# MagnaFlow 93439 Direct Fit Standard Catalytic Converter (3" ID/3" OD) for 1984-1987 Buick Regal and More

### Performance Overview

The Direct Fit Catalytic Converter is designed with a ribbed body that can reduce expansion and distortion when the converters heat up. These ribs holds the ceramic catalyst in a proper position and it also forms a channel that shields the cushioning mat from direct exposure to exhaust gases. The ceramic coating is made for maximum surface area and flow, and the coating method is strictly controlled so that exact

### Key Features

-   Brand: MagnaFlow
-   Part number: 93439
-   Product type: Direct Fit Standard Catalytic Converter (3" ID/3" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1984 Buick Regal, Note: Grand National, T-Type; 3.8L; 3.00"; 3.00"
-   1985 Buick Regal, Note: Grand National, T-Type; 3.8L; 3.00"; 3.00"
-   1986 Buick Regal, Note: Grand National, T-Type; 3.8L; 3.00"; 3.00"
-   1987 Buick Regal, Note: Grand National, Limited; 3.8L; 3.00"; 3.00"
-   1985 Buick Riviera, Note: Base, Luxury, T-Type; 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 93439.

**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 Standard Catalytic Converter (3" ID/3" OD) for Buick Regal
-   93439 fitment
-   MagnaFlow Direct Fit Standard Catalytic Converter (3" ID/3" OD)
-   1984 Buick Regal Direct Fit Standard Catalytic Converter (3" ID/3" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1984

Buick

Regal

Grand National, T-Type; 3.8L; 3.00"; 3.00"

1985

Buick

Regal

Grand National, T-Type; 3.8L; 3.00"; 3.00"

1986

Buick

Regal

Grand National, T-Type; 3.8L; 3.00"; 3.00"

1987

Buick

Regal

Grand National, Limited; 3.8L; 3.00"; 3.00"

1985

Buick

Riviera

Base, Luxury, T-Type; 3.8L; 3.00"; 3.00"

## Details

- **Price:** 493.0 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit Standard Catalytic Converter (3" ID/3" OD)
- **Tags:** 1984 Buick Regal, 1985 Buick Regal, 1985 Buick Riviera, 1986 Buick Regal, 1987 Buick Regal, 93439, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (3" ID/3" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-93439, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 493.00 CAD | In stock |

## Images

- MagnaFlow 93439 Direct Fit Standard Catalytic Converter (3" ID/3" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-buick-regal-catalytic-converter-93439)
> Updated: 2026-07-16