40MR-2 Hydraulic Distributing Control Valve Assembly | Aftermarket Hydraulic Replacement Spare Parts For Mini Excavator 40MR-2 Hydraulic System
Welcome to HanRui hydraulic supply. We specialize in providing the complete 40MR-2 mini excavator multi-way distributing control valve assembly, precision-manufactured as a heavy-duty aftermarket replacement part for small heavy construction machinery equipped with 40MR-2 hydraulic power system. All internal valve spools, valve blocks and oil sealing assemblies are CNC precision machined and passed strict factory pressure & flow testing, stable light-load hydraulic output for small mine, road and municipal construction, plug-and-play direct fit without modification, cost-effective overhaul spare part for global small machinery repair workshops.
- Africa & Australia small open-pit stone quarry excavation, short-distance ore loading operation
- Southeast Asia rural road reconstruction, ultra-shallow foundation pit digging for residential projects
- Europe & Middle East urban municipal pipeline laying, garden landscape renovation
- Small river dredging, village reservoir flood control water conservancy engineering
- Indoor demolition, narrow basement backfilling and small site excavation work
- Valve spool sticking causes unresponsive boom, arm and bucket digging action
- Internal valve leakage leads to automatic cylinder sinking when machine static
- Valve joint oil stain and frequent hydraulic oil consumption
- Overflow valve failure triggers system overpressure and hydraulic high temperature alarm
- Unstable flow output leads to digging jitter under light mining load
- Piston & valve plate wear leads to insufficient whole machine hydraulic pressure
- Pump overheating, metal knocking vibration and front shaft oil seal leakage
- Blocked oil suction filter creates cavitation, weak digging force under load
- Long-term high temperature accelerates pump core aging damage
- Swing weak & slope sliding: Internal seal aging leads to high-pressure oil internal leakage, machine cannot stay steady on slopes
- Swing abnormal noise & jitter: Worn reducer bearing and gear friction produce metal vibration noise
- Swing oil leakage: Front oil seal abrasion causes continuous hydraulic oil spillage
- Swing stuck rotation: Deformed piston blocks smooth rotary movement under full mining load
- Swing overheating: Long continuous swing operation triggers whole hydraulic system high temperature failure
- Inconsistent two-side motor displacement leads to mini excavator travel deviation
- Broken travel reducer gear results in unilateral no driving force
- Slow climbing and heavy-load stall on mountain village roads
- Long-term operation produces gear wear noise and persistent oil leakage
- Engine power drop causes insufficient hydraulic valve output under heavy load
- Engine black smoke and fuel consumption rise when multi-way valve works at full flow
- Engine cooling system blockage accelerates whole machine overheating
- 100% consistent mounting dimension for mini excavator 40MR-2 hydraulic power system, no cutting or refitting required
- Precision CNC machined valve spool & valve block, tiny matching clearance, greatly reduce internal leakage
- 100% factory pressure, flow and sealing pressure testing before delivery, reduce on-site overhaul breakdown rate greatly
- High temperature resistant fluorine rubber sealing parts, adapt tropical high-temperature small construction sites
- Support single piece trial order and large batch wholesale for global machinery repair shops & spare parts distributors
- Export shockproof wooden case packaging to avoid collision damage during long-distance sea transportation
- 6 months full factory official quality warranty for all 40MR-2 distributing valve assemblies
- Model Number: 40MR-2
- OEM Reference Part No: 723-46-13300
- Applicable Equipment: Mini Excavator Equipped With 40MR-2 Hydraulic Power System
- Product Type: Complete Aftermarket Multi-way Hydraulic Distributing Control Valve Assembly
- Core Function: Control boom, arm, bucket and swing multi-way hydraulic flow
- Warranty Period: 6 Months Factory Quality Warranty
| Component Category | Model & OEM Part Number |
|---|---|
| Multi-way Distributing Control Valve | 40MR-2(723-46-13300), 30MR-2, 35-8 Main Valve |
| Complete Diesel Engine Assembly | M11(4024735), DE12, C18, QSK23-C Engine Assembly |
| Hydraulic Main Pump | K3V180(400910-0003), K5V200, AP2D18 Hydraulic Pump |
| Swing Rotary Motor & Gearbox | PC120-8(706-75-01120), DX300, ZX350-6 Swing Motor Assembly |
| Travel Final Drive Motor | GM60(9155025), GM65, GM85 Large Excavator Travel Motor |
This 40MR-2 multi-way distributing valve is aftermarket replacement spare part fully fitted for mini excavator equipped with 40MR-2 hydraulic power system, used for complete hydraulic system overhaul replacement.
It fixes hydraulic valve spool sticking, internal oil leakage, valve overheating; also solves swing weak, swing abnormal noise, swing oil leakage and swing stuck common rotary hydraulic breakdowns for mini excavator 40MR-2 series machinery.
No, this is brand new aftermarket replacement distributing valve assembly matched original installation size for mini excavator 40MR-2 hydraulic power system, direct maintenance replacement without modification.
Yes, MOQ is 1 piece, sufficient factory stock for global small machinery repair workshops and spare parts distributors.
We supply full series distributing valves, hydraulic pumps, swing motors, travel motors and engine aftermarket replacement parts for mini excavator 40MR-2 hydraulic power system, matched overhaul repair kits and wear parts.
Global small machinery maintenance factories and spare parts wholesalers are welcome to send inquiries. Provide your machine model number to get free part matching verification service.
