ini excavators are widely used in landscaping, municipal works, indoor demolition and earthworks. The working conditions are dusty with complicated oil quality. Multiple filters across the whole machine protect core components including the engine, hydraulic pump and main control valve. Filters installed at different positions vary in function, structure and filtration accuracy. Below is the introduction by system:
Engine Air Intake System: Air Filter
Function: Filter dust and sand in construction-site air to prevent impurities from entering the cylinder and causing engine scuffing and wear. It is the most frequently consumed filter on mini excavators.
Structure: Most adopt double-core design (outer primary filter + inner safety filter), pleated filter paper with PU end caps. Some heavy-duty versions use membrane filter media for water and dust resistance.
Popular Part Numbers: P822686, P532409, 119808-12520, AF25557, compatible with Kubota, Yanmar, Sany, XCMG, IHI and other mainstream mini excavators.
Engine Lubrication System: Oil Filter
Function: Filter iron debris and sludge in engine lubricating oil to keep oil clean, protect crankshafts, connecting rods and camshafts, and ensure proper engine lubrication.
Structure: Spin-on integrated filter with built-in glass fiber / paper media, equipped with check valve and bypass valve.
Popular Part Numbers: LF16011, HH160-32093, 600-211-1341, compatible with Yanmar, Cummins and Kubota engines.
Hydraulic System (Core Filter Group for Mini Excavators)
3.1Hydraulic Return Filter
Function: Trap metal debris and rubber contaminants generated by wear of cylinders and valve blocks when hydraulic oil flows back to the tank. It is the core filter of the hydraulic system.
Structure: Pleated glass fiber media with inner metal support screen, most fitted with outer metal protective mesh.
Popular Part Numbers: 207-60-71183, 22B-60-11160, P584774
3.2Hydraulic Suction Filter
Function: Installed at the suction port of hydraulic tank for coarse filtration of large particles, preventing big debris from being sucked into the hydraulic pump for primary protection.
Structure: Metal woven mesh + pleated filter layer, most are reusable washable type.
3.3Pilot Filter
Function: Filter hydraulic oil in pilot control circuit to protect pilot control handles and solenoid valves. Clogging will directly lead to slow and jerky machine movements.
Our Supply Capability
We supply the full range of above filters for mini excavators: air filters, engine oil filters, fuel water separators, main fuel filters, hydraulic return filters, suction filters, pilot filters, breather filters and cabin air filters. We provide premium glass fiber, imported HV filter paper and stainless steel woven mesh as optional media. The precision, sealing and dimensions strictly match original parts.
We offer a wide range of models. Even for those that have been discontinued, we can provide corresponding alternative filters. We can also design and produce according to your specific requirements.
Post time: Nov-12-2026