مضخة هيدروليكية Rexroth AP2D18LV3RS7-881 31MH-10010 لـ حفارة صغيرة Hyundai R35-7Z R35Z-7A R35Z-9

Rexroth AP2D18LV3RS7-881 Hydraulic Pump
For: Hyundai R35-7Z, R35Z-7A, R35Z-9 Mini Excavator
OEM Part Numbers: 31MH-10010, 31MH-10020, 31MH-10030
Model: Rexroth (Uchida) AP2D18LV3RS7-881
Condition: New Aftermarket / Genuine / Remanufactured
Warranty: 12 monthsStock: Guangzhou warehouse in stock, 3–7 days delivery

1. Specifications
Type: Axial piston variable pump (tandem with gear pilot pump)
Displacement: 18 cm³/rev
Rated Pressure: 32 MPa (320 bar)
Max Pressure: 36 MPa (360 bar)
Rated Speed: 2,200 RPM; Max: 2,600 RPM
Max Flow: ~40 L/min @ 2,200 RPM
Control: Load-sensing + negative flow control
Weight: ~50 kg
Shaft: 11-tooth, φ25mm
Features: Compact, integrated pilot gear pump, NOK seals
2. OEM Number Cross-Reference
OEM Number Description Compatibility
31MH-10010 Main pump assembly (AP2D18LV3RS7-881) R35-7Z, R35Z-7A, R35Z-9
31MH-10020 Alternate revision, interchangeable Same as above
31MH-10030 Kit version (pump + gaskets) Same as above
AP2D18LV3RS7-881 Rexroth/Uchida model number Hyundai 3.5-ton mini excavator
3. Compatible Machines
✅ Hyundai R35-7Z (3.5-ton, old model)
✅ Hyundai R35Z-7A (3.5-ton, standard)
✅ Hyundai R35Z-9 (3.5-ton, latest)
❌ Not for R55-7 (AP2D25) or R28-7 (AP2D12)
4. Key Features
Rexroth/Uchida quality: Japanese manufacture, high precision
Compact & powerful: 18cc displacement for 3.5-ton class
Integrated pilot pump: Saves space, no separate pilot unit
Load-sensing control: Optimizes fuel efficiency, reduces heat
Direct bolt-on: Exact fit, no modification needed
Durable: Hardened components, long life in harsh conditions
5. Supply & Pricing
Condition: New aftermarket / genuine Rexroth / remanufactured
Warranty: 12 months (aftermarket) / 24 months (genuine)
Price range:
Aftermarket: USD 700–950
Genuine Rexroth: USD 1,400–1,800
Remanufactured: USD 500–700
Packing: Standard export wooden case with anti-rust treatment
Delivery: 3–7 days to main ports (Guangzhou/Shenzhen)
6. FAQ
Q: What’s the difference between AP2D18LV3RS7-881 and -872?
A: -881 is for Hyundai R35Z-7A/R35Z-9; -872 is for Doosan DX35Z, not interchangeable.
Q: Can I use 31MH-10020 instead of 31MH-10010?
A: Yes, they are full interchangeable OEM revisions.
Q: Are repair kits available?
A: Yes, full overhaul kits (pistons, cylinder block, valve plate, seals) in stock for AP2D18.