Experience unparalleled performance and reliability with the Donaldson P521686 air filter—a robust solution engineered to keep your Caterpillar equipment operating at its best. Constructed with durability and quality in mind, this genuine air filter is ideal for both enthusiasts and professional drivers. Purchase the Donaldson P521686 air filter with assurance, and shop online for a proven, dependable performance upgrade.
Key Benefits
• Genuine, brand-new product designed for optimal performance
• Rapid shipping—typically dispatched within 1 business day
• No minimum order requirement for flexible purchasing
• Built for heavy-duty applications and enhanced durability
• Trusted quality supported by decades of experience in aftermarket parts
Technical Details
• Outer Diameter: 22.4 inches (568.96 mm)
• Inner Diameter: 21.9 inches (556.26 mm)
• Length: 23.97 inches (608.84 mm)
• Cross-references: BALDWIN PA3633FOAM, Caterpillar 4W7103
• Manufactured in the United States, adhering to stringent quality standards
Fit & Application
Optimized for Caterpillar models—including those in the 4W7103 series—this air filter is perfect for heavy-duty and demanding operational environments. Boost your vehicle’s performance and longevity with a filter that meets both rigorous technical specifications and the highest performance standards.
For more premium air filter options, explore our Air Filters collection.
