We supply high-precision genuine hydraulic main control valve with cross-reference part numbers 33Q6-17103 and 33Q6-17101, professionally engineered for perfect compatibility with HX220 and HX330 series excavators. As the core hydraulic distribution component of construction machinery, this main control valve dominates the overall hydraulic system operation, precisely regulating oil flow direction, pressure and flow rate for boom, arm, bucket, swing and travel movements. It directly determines the operating smoothness, digging efficiency, response sensitivity and overall working stability of HX220 and HX330 excavators, serving as an irreplaceable key spare part for daily maintenance and professional overhaul.
Manufactured under strict OEM manufacturing standards and industrial precision processing requirements, the 33Q6-17103 and 33Q6-17101 control valves feature accurate dimensional tolerance and complete assembly matching. The optimized integral valve body structure supports direct replacement for original aging, stuck, leaking or pressure-unstable valves without extra modification or complex debugging, effectively shortening maintenance cycles and reducing equipment repair costs. Adopting high-strength cast steel materials and wear-resistant internal valve cores, this hydraulic main valve maintains stable working performance under long-term heavy-load and high-frequency operation.
This premium main control valve effectively solves common hydraulic faults of HX220 and HX330 excavators, including slow action response, weak digging force, inconsistent operation speed, hydraulic oil leakage, system pressure failure and abnormal jitter during construction. Equipped with upgraded sealing assemblies and anti-corrosion internal structures, it delivers excellent pressure resistance, vibration resistance and dustproof performance, adapting perfectly to harsh construction site environments and ensuring long-term stable hydraulic output.
Every 33Q6-17103 and 33Q6-17101 main control valve undergoes rigorous hydraulic pressure testing, sealing inspection and performance aging tests before shipment to eliminate potential quality defects. As essential aftermarket construction parts, our products feature reliable durability and outstanding cost performance. We maintain sufficient in-stock inventory, support fast global delivery and offer 24/7 professional after-sales service, helping global customers minimize excavator downtime and restore optimal mechanical working efficiency.
OUR SERVICE
We can supply huge stock for excavator spare parts ( various brands etc) :
Engine parts: piston liner kits, main &con rod bearings, valves, cylinder gasket kits, plunger/delivery valve/nozzle,cylinder
block, cylinder head, crankshaft, camshaft, starting motor, oil /water / feed pump, fan blade, turbocharger,thermostat and so on.
Hydraulic parts: hydraulic pump assy , hydraulic pump parts(block assy, plate valve, guide retainer, retainer shoe, piston sub assy, cradle assy--cradle, cam rocker), swing motor, swing machinery, swing circle, main control valve, travel motor, boom cylinder, arm cylinder, bucket cylinder, hydrualic valve and so on.
Undercarriage parts: Chassis parts, track link assy, track shoe, sprocket, track roller, carrier roller, front idler, bucket ,Oil
cylinder assy and so on . cooling system: radiator assy, oil cooler assy, shroud, after cooler assy, condenser assy, water tank assy, air conditioner, air compressor assy and so on.
Hydraulic Parts:
Hydraulic pump, Travel motor, Swing motor, Travel gearbox, Swing gearbox, Main control valve, Hydraulic cylinder assy, Gear pump, Pump regulator,etc.
Cabin Parts:
Excavator cabin, Cabin door, Side door panel, Cabin seat, Cabin glass, Engine cover, Tool box, Door lock, etc.
Electric Parts:
Controller, Monitor, Panel, Throttle motor, Solenoid valve, Wire harness, etc.
