A: Common signs include oil mist leaking from the cap, hydraulic tank deformation caused by pressure build-up, and pump cavitation noise. A clogged filter inside the breather stops the air exchange, pulling a vacuum inside the system.
A: Simply thread the cap by hand onto the tank neck until fully seated, ensuring the rubber sealing gasket stays level. Clean the surrounding area before installation, and replace the cap every 1000 operating hours in dusty mining conditions.
A: Cross-reference the OEM part number 4343365. This breather cap is a standard fit for large-scale fleets including EX200-2, EX1200-5, ZX200, ZX330, and ZX450 hydraulic systems.
A: Yes. The internal valves and premium sealing rings operate efficiently between -35 and 110 degrees Celsius. It will not freeze up or crack when exposed to continuous UV rays or high ambient temperatures.
A: We pack all shipments in sturdy, moisture-proof commercial boxes to prevent thread damage during long sea freight. We offer flexible MOQ options and bulk pricing structures to help you boost profit margins.
Q: What quality options are available?
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies





















