KOMATSU PC3000-1 PC3000-6 PC4000-6 H255S Hydraulic Control Valve Block 90774640 65516840 90774240 65516740 For Excavator Spare Parts

• Product: Refurbished Hydraulic Control Valve Block
• OEM Numbers: 90774640, 65516840, 90774240, 65516740
• Compatible Models: KOMATSU PC3000‑1, PC3000‑6, PC4000‑6, H255S
• Appliion: Excavator Spare Parts
• Condition: Refurbished

• Bench tested to match OEM performance requirements
• Worn spools, seals and critical components replaced during refurbishment
• Precise flow distribution for main working functions
• Economical solution for large mining excavator overhaul

• Valve Type: Main multi‑section control valve block
• Function: Boom, arm, bucket, swing and travel hydraulic distribution control
• Working Medium: Hydraulic oil ISO VG46 / VG68
• Rated Working Pressure: 31.5 MPa
• Max Relief Pressure: 34.5 MPa
• Mounting: Direct fit original mounting position
• Port Specifiion: Matches original port size, thread and connection layout
• Refurbishment Process: Complete disassembly → ultrasonic cleaning → defective parts replacement → assembly → full pressure & flow bench test → leakage test
• Weight: 865kg approx

Q1: Does this valve block fit mining excavator directly?

A1: Yes, bench tested, direct replacement after system flushing.

Q2: What is the warranty for refurbished valve block?

A2: Half‑year warranty under proper installation and maintenance.

Q3: Are solenoid valves included in standard supply?

A3: Standard package excludes extra solenoids unless specified.