Wix 46433FR Engine Air Filter - Outer

Engine Air Filter Overview

This Wix HD engine air filter is built for heavy-duty air intake service and fits a wide range of commercial trucks and medium-duty applications. The 46433FR uses a radial seal design with flame-retardant cellulose media for dependable filtration in demanding operating conditions.

Key Features

• Radial seal air filter design for secure air intake sealing.
• Flame-retardant cellulose media for heavy-duty filtration performance.
• Premium filtration media with pleat stabilization features where applicable.
• Polyurethane or corrosion-resistant end caps and expanded metal body construction.
• Laboratory-tested to ISO 5011 standards with 99.9% contaminant removal.

Detailed Description

Wix 46433FR is an engine air filter engineered for heavy-duty use in commercial vehicles that require a radial seal element. The filter media is designed to maintain airflow while capturing fine contaminants, and the durable end-cap and body construction supports long service life in demanding duty cycles. This part number, 46433FR, is listed across applications such as Ford F-650, Peterbilt 320, and Kenworth T370 fitments, making it a practical replacement for fleets and service shops working with mixed medium- and heavy-duty platforms. This part cross-references NAPA Gold Filters 6433FR and CARQUEST Premium Filters 88433FR for the same application.

Common Uses

• Restricted engine airflow caused by a loaded air filter.
• Dust and debris entering the intake system.
• Reduced filtration performance during heavy-duty operation.
• Service replacement at OEM air filter change intervals.
• Wear from repeated exposure to harsh road and worksite conditions.

Installation Notes and Tips

Verify the filter style, dimensions, and fitment before installation, especially on applications that list outer or N/A positions. Confirm the housing accepts a radial seal filter and match the part number 46433FR to the vehicle’s specified service application. For best results, inspect the air cleaner housing for dirt buildup before installing the new filter.

Quality Assurance

Wix HD air filters are recommended for OEM air filter change intervals and are laboratory tested to ISO 5011 standards. The 46433FR is built with durable media and reinforced construction intended for long service in heavy-duty environments.