Baldwin PA2439 Engine Air Filter

Overview of Baldwin PA2439 Engine Air Filter

The Baldwin PA2439 engine air filter is designed specifically for use in Brockway and Mack trucks, providing reliable filtration to maintain engine performance. Featuring two attached gaskets and precise dimensions, this filter supports efficient air flow and engine protection.

• Compatible with Brockway and Mack trucks
• Two attached gaskets for secure sealing
• Height: 15 inches (381 mm)
• Inside diameter: 8 11/32 inches (211.9 mm)
• Outside diameter: 12 3/4 inches (323.8 mm)
• Replaces Mack part number 57MD31
• Inside-out flow direction for optimal filtration
• Optional gasket available: G422-AF

Detailed Product Description

The Baldwin PA2439 engine air filter is engineered to meet the filtration needs of heavy-duty Brockway and Mack trucks. It features two attached gaskets, including the furnished G25-AF gasket, ensuring a tight and reliable seal within the air intake system. The filter measures 15 inches in height with an inside diameter of 8 11/32 inches and an outside diameter of 12 3/4 inches, dimensions that align with OEM specifications for proper fitment.

This filter operates with an inside-out flow direction, which helps trap contaminants effectively while allowing clean air to reach the engine. It is sometimes used in conjunction with the PA2438 filter in vertical configurations, providing flexibility for specific engine setups. The PA2439 replaces the Mack 57MD31 filter, making it a direct replacement option for maintenance and repair.

Applications and Problem Solving

• Prevents engine damage caused by dust and debris
• Maintains optimal air flow for fuel efficiency
• Reduces engine wear in Brockway and Mack trucks
• Helps avoid clogging and air intake restrictions
• Supports consistent engine performance under heavy-duty conditions

Installation Notes and Tips

When installing the Baldwin PA2439 engine air filter, ensure the inside-out flow direction is correctly oriented to maintain filtration efficiency. The two attached gaskets should be inspected for proper seating to prevent air leaks. This filter may be used alongside the PA2438 in vertical installations, so verify compatibility with your specific engine setup. Replacement of the original Mack 57MD31 filter with the PA2439 should follow manufacturer guidelines for torque and sealing.

Quality Assurance and Warranty

Baldwin filters are manufactured to meet industry standards for durability and filtration performance. The PA2439 is constructed with quality materials to withstand demanding operating conditions typical of Brockway and Mack trucks. While specific warranty details are not provided here, Baldwin products generally come with a limited warranty against defects in materials and workmanship. Consult Baldwin or your parts provider for exact warranty terms.