Description
This heavy‑duty gear‑type engine oil pump serves as a core lubrication component for Caterpillar 3406B and 3406C diesel engines. Built with precisely machined gear assemblies and integrated pressure relief valve, it delivers stable and consistent pressurized oil flow to crankshaft bearings, camshaft and other critical moving parts.
It maintains proper lubrication under heavy‑load, high‑temperature and long‑hour continuous operating conditions, effectively reducing metal‑to‑metal friction and slowing component wear.
Precision‑matched mounting dimensions support direct bolt‑on fitment without extra modification. Every unit undergoes strict bench testing to verify oil flow rate and relief‑valve performance, ensuring steady output under fluctuating working loads. It adapts well to tough working environments of construction sites, mining yards and stationary power equipment.
Wide application scope covers multiple heavy‑duty machines powered by 3406B and 3406C engines. It is widely used on 980C, 980G wheel loaders, large excavators, off‑highway trucks and diesel generator sets.





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