Excavator Oil Pump
Excavator Oil Pump
If you're seeing low oil pressure warnings or hearing engine knock on your Doosan DX225, DH225-7, or DH258-7, the root cause is often a failing excavator oil pump. As the pump's gears wear or clearances open up, it can no longer maintain the pressure needed to feed oil to the crankshaft, camshaft, and other critical components. Without proper lubrication, you're looking at expensive engine damage before you know it. This DB58 engine oil pump, built to OEM specs (part numbers 65.05101-7025 and 400915-00011A), is the reliable replacement to protect your engine.
We only carry pumps that meet the original flow and pressure requirements exactly. We've seen too many cheap aftermarket pumps that barely meet the minimum specs, leading to premature wear and repeat failures. Every unit we supply is tested to ensure consistent oil pressure under full load, so you don't have to worry about mid-job shutdowns. It's engineered as a direct-fit replacement, designed to drop right into your DB58 engine without modifications.
From experience, we always recommend replacing the oil filter and inspecting the pickup tube when installing a new excavator oil pump. Even small amounts of debris in the oil pan can clog the strainer and starve the new pump, so taking the extra time to clean the system will save you from repeat issues down the line.
At Yantai Dayun Machinery Parts, we keep this oil pump in stock for fast shipping, backed by a 1-year warranty. If you're unsure about fitment for your serial number, just send us a photo of the old unit or your engine model, and we'll help you confirm it's the right part for your machine.
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