The Fleetguard AF851 Air Filter is designed for heavy-duty performance, ensuring maximum engine protection and reliability in demanding conditions. Its cartridge format delivers exceptional filtration efficiency—approximately 99.9% full life efficiency—to keep contaminants out and preserve engine performance. This robust filter is an excellent choice for Cummins engines and other heavy-duty applications.

Key Specifications

• Filter Type: Primary air filter in a cartridge design
• Dimensions: Detailed measurements for height, length, and outer and inner diameters are available in the technical documentation
• Efficiency Rating: Approximately 99.9% full life efficiency
• Material & Weight: Constructed from high-quality, durable materials built to withstand harsh environments
• Rated Flow: Engineered for optimal flow rates to enhance engine performance

OEM & Compatibility

• OEM Part Number: AF851
• Compatible Engines: Ideal for Cummins engines and similar heavy-duty systems
• Alternative Options: Suitable for various heavy-duty applications requiring reliable air filtration

Fast & Reliable Service

Every order is processed with speed and precision, with items typically shipping within one business day. Our genuine Fleetguard parts require no minimum order and are supported by dedicated 24/7 customer service. For additional options and more details on our selection, visit our Air Filters Collection.