WIX Filters 49959 Diesel Heavy Duty Air Filter

Description:

The WIX 49959 Heavy Duty Diesel Air Filter is used in commercial truck and industrial diesel engine air intake systems for filtering airborne contaminants before air enters turbocharged diesel engines. Commonly installed in Freightliner M2 trucks, Western Star commercial vehicles, buses, and medium-duty diesel fleet equipment requiring corrugated primary air filtration. Maintenance teams, diesel technicians, and fleet service facilities use this air filter for preventive maintenance, engine protection, and replacement of clogged or contaminated intake air filters.

Applications:

The WIX 49959 air filter is widely used in heavy-duty diesel environments requiring reliable filtration of dust, dirt, soot, and airborne debris to protect turbocharged diesel engines from premature wear and airflow restriction. It is commonly integrated into Freightliner M2 100, M2 106, M2 112, and Western Star truck platforms where clean intake airflow is critical for maintaining engine performance, fuel efficiency, turbocharger protection, and long-term engine reliability. The corrugated primary filter design supports high airflow requirements and continuous-duty commercial fleet applications.

Technical Specifications:

• Brand: WIX
• Part Number: 49959
• Product Type: Heavy Duty Diesel Engine Air Filter
• Filter Style: Corrugated Primary Air Filter
• Service Type: Heavy Duty Air Filtration
• Filtration Media: Flame Retardant Cellulose
• Height: 7.996 Inches
• Outer Diameter Top: 12.854 Inches
• Outer Diameter Bottom: 10.000 Inches
• Inner Diameter Top: Closed
• Inner Diameter Bottom: 0.750 Inches
• Duty Type: Heavy Duty
• Application Type: Diesel Engine Air Filtration
• Installation Type: Primary Air Cleaner Housing Installation
• Function: Airborne Contaminant Removal and Engine Protection
• Compatible Equipment: Freightliner M2 Trucks, Western Star Trucks, Commercial Buses
• Industry Applications: Commercial Trucking, Fleet Maintenance, Industrial Equipment
• Cross References: NAPA Gold 9959, CARQUEST 83959
• OEM References: Donaldson P607960, Fleetguard AF4202, Luber-Finer LAF3233FR
• Secondary Filter Pairing: WIX 49910 Secondary Element
• Operating Function: Diesel Engine Air Intake Protection

Common Replacements:

• Donaldson P607960
• Fleetguard AF4202
• Baldwin CA5420