Wix 49421 Engine Air Filter
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Wix 49421 Engine Air Filter

Brand Wix 49421
Class W
Duty Type Ld
Height 1.673
Inner Diameter Top Closed
Length 11.417
Media Material Cellulose
Style Air filter panel
Width 10.177
Fits Buick and Saab · 6 vehicles

OE service interval fit. Recommended for OEM air filter change intervals in normal and severe driving conditions.

Enhanced cellulose media. Phenolic resin treatment adds durability and moisture resistance.

High-efficiency filtration. Laboratory tested to at least 99.5% efficiency per ISO 5011.

Cross-references ACDelco A3172C, ACDelco PC 3347 E and AL Filter ALA-8867/1 for the same application. See all 37.

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Engine Air Filter Overview

WIX 49421 is a panel-style engine air filter built for light-duty applications that need dependable airflow control and engine protection. It is a direct replacement style filter for compatible Buick Regal and Saab 9-5 applications, with fitment covering 2010-2013 model years.

Key Features

  • Panel air filter design for standard airbox service.
  • Enhanced cellulose media for filtration performance and durability.
  • Phenolic resin treatment helps resist moisture ingestion.
  • 30% more media than OES filters, based on WIX testing and design comparison.
  • High-tear strength polyurethane seal is used when applicable for temperature resistance.
  • Laboratory-tested to at least 99.5% efficiency per ISO 5011, based on WIX 42389.

Detailed Description

WIX 49421 is an engine air filter designed to support normal and severe driving conditions, including stop-and-go traffic, dirt roads, construction zones, short trips, and highway use. The cellulose media is treated with phenolic resin to improve durability in moisture-prone environments, while the panel construction supports consistent filtration in the air intake system. This part cross-references ACDelco A3172C and FRAM CA12041 for the same application. For buyers servicing a Buick Regal or Saab 9-5, WIX 49421 offers a service replacement option aligned with OEM air filter change intervals.

What It Helps Address

  • Restricted airflow from a loaded or dirty air filter.
  • Reduced filtration performance in dusty driving conditions.
  • Moisture-related media breakdown in the intake system.
  • Premature service intervals caused by demanding daily driving.
  • Air intake contamination that can affect engine protection.

Installation Notes and Tips

Replace the filter at the interval specified for the vehicle and inspect the airbox for debris before installation. Confirm the panel dimensions and filter style match the existing unit before ordering. This part number 49421 is used in compatible Buick Regal and Saab 9-5 applications, so verify the air filter housing shape and size against the original filter.

Quality Assurance

WIX states this filter is recommended for OEM air filter change intervals and has been laboratory tested to at least 99.5% efficiency per ISO 5011, based on WIX 42389.

Related reading

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2013BuickRegal2.0LL4—
2012BuickRegal2.0LL4—
2011BuickRegal2.0LL4—
2011Saab9-52.0LL4—
2011Saab9-52.8LV6—
2010Saab9-52.8LV6—
Directly replaces or cross-references 37 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — A3172CACDelco — PC 3347 EAL Filter — ALA-8867/1Baldwin — PA10345BluePrint Engines — ADW192202Bosch — 0 986 AF2 955Bosch — F 026 400 244Bosch — S0244clean filters — MA 3189COMLINE Auto Parts — EAF802Filtron — AP 152/5FRAM — CA12041General Motors — 13319421General Motors — 95519047Hastings — AF1560Hengst — E1083LJapan Parts — 20-0W-W16Japan Parts — FA-W16SK&N — 33-2962Mann-Filter — C 29 012Mapco — 60383Micronair — AF172Mighty Distributing System — A3172Motaquip — LVFA 1494Mueller — PA3579NAPA Gold Filters — 9421Opel — 834125Opel — 834895Purflux — A1797Saab — 13319421Sakura — A-32030Tecnocar — A2574VAICO — V40-0893Valeo — 585409Wix Europe — WA9740ELP9199LX 3062