# PUR 57-42728 Air Filter for 1999-2006 Subaru Impreza, Subaru Legacy and Select Vehicles

### Performance Overview

The PUR 57-42728 Air Filter is designed as a direct replacement part for compatible Subaru select vehicles applications. It is built to support reliable performance, proper fitment, and straightforward installation when replacing a worn or damaged component.

### Key Features

-   Keeps damaging particles from entering the engine and causing increased engine wear
-   Improves engine response time Protects the operational performance of your engine
-   Reduces ecological footprint through fuel economy
-   Boosts fuel economy by 6% to 11%
-   98% Efficiency Against Rocks And Other Debris on the Road

### Interchange Numbers

**Interchange / Cross Reference Part Numbers:** XA5353, CA9113, AF9113, AF1082, PA5353, A25353, 42728

Please compare these interchange numbers with your original part number and confirm vehicle compatibility before ordering.

### Vehicle Fitment

Review the vehicle fitment list below to confirm this part matches your vehicle before purchase.

-   1999 Subaru Impreza
-   1999 Subaru Legacy
-   2000 Subaru Forester
-   2001 Subaru Forester
-   2002 Subaru Forester
-   2003 Subaru Forester
-   2000 Subaru Impreza
-   2001 Subaru Impreza
-   2000 Subaru Legacy
-   2001 Subaru Legacy
-   2002 Subaru Legacy
-   2003 Subaru Legacy
-   2000 Subaru Outback
-   2001 Subaru Outback
-   2002 Subaru Outback
-   2003 Subaru Outback
-   2002 Subaru Impreza
-   2003 Subaru Impreza
-   2003 Subaru Baja
-   2004 Subaru Baja
-   2004 Subaru Forester
-   2004 Subaru Impreza
-   2004 Subaru Legacy
-   2004 Subaru Outback
-   2005 Subaru Baja
-   2006 Subaru Baja

### Vehicle Fitment Table

   

Year

Make

Model

Position

1999

Subaru

Impreza

1999

Subaru

Legacy

2000

Subaru

Forester

2001

Subaru

Forester

2002

Subaru

Forester

2003

Subaru

Forester

2000

Subaru

Impreza

2001

Subaru

Impreza

2000

Subaru

Legacy

2001

Subaru

Legacy

2002

Subaru

Legacy

2003

Subaru

Legacy

2000

Subaru

Outback

2001

Subaru

Outback

2002

Subaru

Outback

2003

Subaru

Outback

2002

Subaru

Impreza

2003

Subaru

Impreza

2003

Subaru

Baja

2004

Subaru

Baja

2004

Subaru

Forester

2004

Subaru

Impreza

2004

Subaru

Legacy

2004

Subaru

Outback

2005

Subaru

Baja

2006

Subaru

Baja

### FAQ

**Will this fit a 1999 Subaru Impreza?**  
Yes, this Air Filter fits the vehicles listed in the Vehicle Fitment section above. Please confirm the year, make, model, and position before ordering.

**What position does this part fit?**  
Please confirm the required installation position using the vehicle fitment information above.

**Can I use the interchange numbers to confirm compatibility?**  
Yes. Compare the interchange or cross-reference numbers shown above with your original part number, then verify the vehicle fitment before ordering.

**Is professional installation recommended?**  
Professional installation is recommended to help ensure proper fit, safe operation, and correct system performance.

### Common Searches

-   Air Filter for Subaru select vehicles
-   Air Filter for 1999 Subaru Impreza
-   PUR 57-42728 Air Filter
-   replacement 57-42728 Air Filter
-   1999-2006 Subaru select vehicles Air Filter

## Details

- **Price:** 10.81 CAD
- **Vendor:** PUR
- **Type:** Air Filter
- **Tags:** 1999 Subaru Impreza, 1999 Subaru Legacy, 1999-2006 Subaru select vehicles Air Filter, 2000 Subaru Forester, 2000 Subaru Impreza, 2000 Subaru Legacy, 2000 Subaru Outback, 2000-2001 Subaru Impreza, 2000-2003 Subaru Forester, 2000-2003 Subaru Legacy, 2001 Subaru Forester, 2001 Subaru Impreza, 2001 Subaru Legacy, 2001 Subaru Outback, 2001-2003 Subaru Outback, 2002 Subaru Forester, 2002 Subaru Impreza, 2002 Subaru Legacy, 2002 Subaru Outback, 2002-2003 Subaru Impreza, 2003 Subaru Baja, 2003 Subaru Forester, 2003 Subaru Impreza, 2003 Subaru Legacy, 2003 Subaru Outback, 2004 Subaru Baja, 2004 Subaru Forester, 2004 Subaru Impreza, 2004 Subaru Legacy, 2004 Subaru Outback, 2005 Subaru Baja, 2005-2006 Subaru Baja, 2006 Subaru Baja, 42728, 57-42728, A25353, AF1082, AF9113, AI Readable Fitment, Air Filter, Air Filter fitment, Air Filter for 1999 Subaru Impreza, Air Filter for Subaru select vehicles, CA9113, Engine air filter, Filter, PA5353, PUR, PUR 57-42728 Air Filter, PUR Air Filter, replacement 57-42728 Air Filter, replacement auto part, Subaru Baja, Subaru Forester, Subaru Impreza, Subaru Legacy, Subaru Outback, vehicle fitment, XA5353

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.81 CAD | In stock |

## Images

- PUR_Air Filter_57-42728

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/air-filter-for-subaru-impreza-forester-outback-legacy-baja-57-42728)
> Updated: 2026-06-02