Description

P544243 Engine Air Filter for Peterbilt 367 & Cummins ISM11 Engines

The P544243 Engine Air Filter is a high-performance heavy-duty air filter designed to protect diesel engines operating in demanding trucking environments. Engineered as a direct replacement for Fleetguard AF25955, Wix 42798, and Mack 57MD318, this filter provides exceptional filtration efficiency while maintaining optimal airflow to the engine.

Commercial trucks equipped with Cummins ISM11 engines require a constant supply of clean air to ensure efficient combustion and reliable performance. Dust, dirt, and airborne contaminants can cause premature engine wear, reduced fuel economy, and costly maintenance issues. The P544243 air filter is manufactured with advanced filtration media to capture harmful particles while maintaining low airflow restriction.

Designed for long-haul transportation, regional fleets, and vocational truck applications, this filter helps maximize engine protection and operational efficiency.

Product Features

• Direct replacement for P544243
• Compatible with Fleetguard AF25955
• Replaces Wix 42798 and Mack 57MD318
• High-efficiency filtration media
• Excellent dust-holding capacity
• Optimized airflow performance
• Durable heavy-duty construction
• Protects turbochargers and engine components
• OEM-quality fit and sealing
• Suitable for fleet maintenance programs
• OEM and ODM manufacturing available

Product Specifications

Compatible Vehicle Applications

Peterbilt Trucks

• Peterbilt 367

Compatible Engine

• Cummins ISM11 Diesel Engine

This filter is commonly used in heavy-duty trucks operating in:

• Long-haul transportation
• Regional freight delivery
• Construction support fleets
• Vocational truck applications
• Municipal and utility fleets

Fitment may vary depending on engine configuration and production year. Always verify part numbers before ordering.

Cross Reference Numbers

This air filter replaces:

• P544243
• Fleetguard AF25955
• Wix 42798
• Mack 57MD318

Additional aftermarket cross references may be available depending on regional applications.

Product Benefits

Superior Engine Protection

Effectively removes dust, dirt, soot, and airborne contaminants before they enter the engine intake system.

Improved Engine Efficiency

Maintains clean airflow for proper combustion, helping support power output and fuel economy.

Extended Engine Life

Reduces wear on cylinders, pistons, turbochargers, and other critical engine components.

Lower Maintenance Costs

High dust-holding capacity helps extend service intervals and reduce unplanned downtime.

Product Parameters

Quality Assurance

Every P544243 air filter undergoes comprehensive quality testing, including:

• Filtration efficiency testing
• Airflow restriction testing
• Dust capacity testing
• Structural integrity inspection
• Seal performance verification
• Dimensional accuracy testing

These quality procedures ensure consistent OEM-level performance and reliability.

Why Choose Our Air Filters?

As a professional truck filter manufacturer, we provide reliable filtration solutions for distributors, fleet operators, and truck parts wholesalers worldwide.

Our Advantages

• OEM-quality manufacturing standards
• Factory-direct pricing
• Stable production capacity
• Custom branding support
• Private-label packaging available
• Fast international shipping
• Low MOQ for distributors

Frequently Asked Questions

What engine uses the P544243 air filter?

This filter is commonly used in Peterbilt 367 trucks equipped with Cummins ISM11 diesel engines.

Is this a direct replacement for AF25955?

Yes. It is designed as a direct replacement for Fleetguard AF25955 and equivalent references.

What are the benefits of replacing the air filter regularly?

Regular replacement helps maintain engine performance, fuel economy, and protection against harmful contaminants.

Do you support OEM and wholesale orders?

Yes. We offer OEM production, customized packaging, and private-label branding for distributors and wholesalers.