Wix 46603 Engine Air Filter

WIX HD Engine Air Filter 46603

The WIX 46603 is a heavy-duty engine air filter built for dependable airflow control and high-efficiency contaminant capture. It uses premium cellulose media, metal ends, and a durable expanded-metal structure to support OEM air filter change intervals in demanding service.

• Part number: 46603
• Heavy-duty air filter for engine intake systems
• Cellulose filter media with pleat stabilization features where applicable
• Metal ends for added durability
• High-strength construction for long service life
• Laboratory-tested to ISO 5011 standards with minimum 99.9% contaminant removal, based on WIX reference testing
• Airflow rating: 230 CFM

Filter Construction and Performance

WIX HD air filters are built around premium filtration media and a reinforced structure that helps maintain consistent intake performance. The 15.125-inch height, 7.025-inch bottom outer diameter, 6.000-inch top outer diameter, and 3.609-inch inner diameter bottom provide the dimensional profile needed for the correct air cleaner housing fit. This WIX 46603 is a direct replacement style engine air filter for applications that call for a durable, high-efficiency intake filter.

Compatible with select Ford, Baldwin, Fleetguard, and NAPA Gold cross-reference applications, this part number 46603 is commonly searched for heavy-duty engine air filter replacement needs. It is also referenced in searches for Ford 81DB9601JA and Ford 81DB9601TB applications.

Common Problems This Filter Helps Address

• Restricted airflow from a loaded or dirty intake filter
• Excess dust and debris entering the engine intake
• Premature filter breakdown in heavy-duty service
• Reduced intake efficiency caused by worn filter media
• Incorrect replacement sizing for the air cleaner housing

Installation Notes and Fitment Tips

Verify housing dimensions before installation and compare the filter height, inner diameter, and outer diameters to the original part. For fitment-based searches, this WIX 46603 is used in heavy-duty and industrial applications, including Ford 81DB9601JA and Ford 81DB9601TB references. Confirm the air cleaner assembly matches the listed dimensions before service.

Quality Assurance

WIX HD air filters are engineered with reinforced end caps and expanded metal support for durability in demanding operating conditions. The manufacturer cites ISO 5011 laboratory testing and a minimum 99.9% contaminant removal rating based on referenced WIX test parts.