Baldwin PA2521 Engine Air Filter - Outer or Single

Overview of Baldwin PA2521 Engine Air Filter

The Baldwin PA2521 engine air filter is designed for use in heavy-duty trucks including International, Kenworth, Mercedes-Benz, Peterbilt, and Thomas models. This filter features a single attached gasket and precise dimensions to ensure proper fit and reliable engine protection.

• Compatible with International, Kenworth, Mercedes-Benz, Peterbilt trucks, and Thomas vehicles
• Height: 16 7/16 inches (417.5 mm)
• Inside diameter: 6 1/32 inches (153.2 mm)
• Outside diameter: 10 3/8 inches (263.5 mm)
• Includes one attached gasket for secure sealing
• Replaces International part number 476741-C1
• Related to long-life media version LL2521
• Designed for use with Baldwin PA2522

Detailed Product Description

The Baldwin PA2521 engine air filter is engineered to meet the filtration requirements of various heavy-duty truck models. Its dimensions—16 7/16 inches in height, 6 1/32 inches inside diameter, and 10 3/8 inches outside diameter—are tailored to fit specific air intake systems. The attached gasket ensures a tight seal, preventing unfiltered air from entering the engine. This filter is a direct replacement for International part number 476741-C1, making it suitable for fleet maintenance and individual vehicle service. The PA2521 is also related to the LL2521, which features long-life media for extended service intervals. For optimal performance, it is recommended to use this filter in conjunction with Baldwin PA2522.

Applications and Problem Solving

• Prevents engine damage caused by dust and debris in International, Kenworth, Mercedes-Benz, Peterbilt, and Thomas trucks
• Helps maintain engine performance by ensuring clean airflow
• Reduces risk of clogged air intake systems and associated power loss
• Supports compliance with manufacturer air filtration specifications
• Minimizes maintenance downtime with reliable fit and sealing

Installation Notes and Tips

When installing the Baldwin PA2521 engine air filter, ensure the attached gasket is properly seated to maintain an airtight seal. Verify the filter dimensions match the vehicle’s air intake housing to avoid fitment issues. It is advisable to inspect the air intake system for debris before installation. Replace the filter according to the vehicle manufacturer’s recommended service intervals or when performance issues arise.

Quality Assurance and Warranty

Baldwin filters are manufactured to meet industry standards for filtration efficiency and durability. The PA2521 undergoes rigorous quality control to ensure consistent performance. While specific warranty details are not provided, Baldwin products typically come with manufacturer-backed quality assurance to support reliable operation in commercial vehicle applications.