D665/D661/D664/D662/D663/D633 Series Hydraulic Control Valve – Precision Engineered for Heavy-Duty Performance

High-Grade Material
Industrial-grade cast iron body with hardened steel components ensures extreme durability and corrosion resistance under high-pressure conditions.
Precision Machining
CNC-milled spools and ports guarantee leak-proof operation and smooth fluid control, minimizing energy loss in hydraulic systems.
Wide Compatibility
Direct replacement for D633-520B/521B/522B/523B/524B/525B models, ideal for excavators, loaders, and agricultural machinery.
Optimized Flow Design
Low-pressure drop design maximizes efficiency in construction, mining, and industrial automation applications.
Global Stock Availability
Shipped worldwide at unbeatable wholesale prices—bulk orders receive priority logistics support.
Trusted Supplier
Backed by rigorous QA testing and OEM-equivalent craftsmanship, ensuring reliability for large-scale procurement.