Product Description
Air Filter 4798989 is a replacement primary engine air filter designed for heavy-duty construction machinery air intake systems. It helps remove dust, sand, soot, and airborne particles before they enter the engine, supporting cleaner airflow, stable engine performance, and reliable engine protection.
This air filter uses a compact high-efficiency filtration structure with a durable plastic housing and sealing design. It is suitable for excavators, track-type tractors, wheeled excavators, motor graders, off-road machinery, and other diesel-powered equipment working in dusty environments.
For machines operating in construction sites, mines, earthmoving projects, and harsh outdoor conditions, a reliable air filter can help reduce engine wear, maintain intake efficiency, and extend maintenance intervals.
Applications
Air Filter 4798989 / 479-8989 is commonly listed for Caterpillar construction machinery applications, including CAT 320, 320 GC, 320 GX, 323, 323 GC, 323 GX, 325, 326, 326 GC, 333 GC, 335, D4, D5, M317, M318, M319, M320, and Motor Grader 120.
It is suitable for construction machinery repair shops, excavator service companies, spare parts importers, distributors, fleet maintenance customers, and aftermarket service providers. Please confirm the OE number, air filter size, air cleaner housing, and machine model before ordering.
Features
1. Primary air filter design helps protect the engine intake system from dust and airborne contaminants.
2. High-efficiency filtration structure supports cleaner airflow and strong dust-holding capacity.
3. Durable plastic housing helps keep the filter stable under heavy-duty working conditions.
4. Reliable sealing design helps reduce unfiltered air leakage into the engine.
5. Suitable for dusty construction sites, mining areas, earthmoving work, and off-road machinery operation.
6. Helps reduce engine wear, maintain intake efficiency, and support longer equipment service life.
7. Factory direct supply, OEM/ODM service, neutral packing, and customer brand packing are available.
Product OE Number
Main OE Number: Caterpillar 479-8989
Alternative Writing: 4798989 / 479 8989 / 479-8989
Common Cross Reference Numbers: Caterpillar 4798989, Caterpillar 479-8989, HIFI-FILTER SA 160066, HIFI SA160066, SF-FILTER SL 82517.
Customer Case
Customer Case – Ali from UAE
Ali is a construction machinery spare parts distributor in Dubai, UAE. He mainly supplies filters for Caterpillar excavators, loaders, and repair workshops. He was looking for Air Filter 4798989 and related CAT excavator filters with stable quality, accurate cross reference numbers, and customer brand packaging. After checking the sample, filter structure, dimensions, and packing details, he placed a trial order for his local aftermarket customers.














