Filter Oils

2 products

Our Filter Oils for Harley-Davidson are purpose-made lubricants for treating reusable performance air filters on Big Twin, Touring, Softail, Dyna and Sportster bikes. Iron Stable is run by Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, and we pick filter oils that suit the high-flow intakes fitted to a wide range of modern Harley-Davidson builds. This range is supplied by K&N, the brand most closely associated with washable cotton-gauze performance filters worldwide. Whether you are maintaining a stock air cleaner on your Harley-Davidson, servicing a Stage 1 intake upgrade or keeping a custom open filter running properly, the right filter oil is essential for filtration, airflow and engine protection. Browse the full range below.