Standard Efficiency Engine Air Filter - Primary It pays to choose genuine Cat Filters to protect the iron that generates your income. Contamination is your engine’s number one enemy, which is why it’s critical to protect your Cat equipment with genuine Cat Filter Elements. Cat Standard Efficiency Primary Engine Air Filters are your best value for normal duty applications, delivering increased engine protection and preventing equipment downtime. Offering a long service life and exceptional filtration, Cat Air Filters are also environmentally friendly and cost-effective. Designed to the exact specifications of your Cat equipment, genuine Cat Filters are a crucial factor in your machine’s ability to use air efficiently. A clean filter element protects internal mechanisms from being damaged by dirt. Consistently choosing Cat Air Filters is the best choice to ensure long life and optimum performance of your Cat machinery. Attributes: Quick serviceability Improved contamination control holds particulates during filter change SPECIFICATIONS Efficiency Rating: Standard Efficiency Primary vs Secondary: Primary Seal Type: Radial Seal COMPATIBLE MODELS Backhoe Loader 428E 416E 428D 416D 420E 442E 442D 432E 434E 420D 422E 430D 432D 430E 444E 414E 424D Track-Type Tractor D3K LGP D5K LGP D4K LGP D5K XL D3K XL D4K XL