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Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Specifications
Part name :
Hydraulic pump
Model Number :
U35-4 KX033-4
Warranty :
1 Year
Price :
Negotiated price
Packaging Details :
Wooden Case Packing
Shipment :
Sea / Air / Express DHL FEDEX UPS
Supply Ability :
100 PCS / Months
Part number :
RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124
Place of Origin :
Japan
Quality :
OEM
Brand Name :
Belparts
Certification :
ISO9001 / 2006/42/EC
Type :
PVD-0B-24
Payment Terms :
T/T,trade assurance,PayPal,L/C,D/P,D/A,Western Union,MoneyGram
Application :
Excavator
Delivery Time :
1~5 days
Model :
U35-4 KX033-4
MOQ :
1PCS
Description
# Part No. Description Qty
010 RC788-61113 ASSY PUMP,PISTON; Serial No. >=22345; Replacement 1
010 RC788-61112 ASSY PUMP,PISTON; Serial No. <=22344 1
020 RP471-70040 SHAFT 1
030 RP471-70010 ASSY CYLINDER 1
040 RP471-70020 ASSY PISTON 10
050 RC788-69060 PLATE 1
060 RB401-69030 PIN 2
070 RP471-70050 SPRING 1
080 RB411-69020 HOLDER,SPRING 1
090 RC788-69030 GUIDE(SPRING) 1
100 RB401-69310 PIN 1
110 RC788-69040 ROD 1
115 RC788-69070 WASHER 1
120 RP471-70070 WASHER 1
130 RC788-69050 PIN 1
140 RC788-69080 PIN 1
150 RB401-69100 PIN 1
160 RP471-70110 HOLDER, SEAL 1
170 RC401-69020 BEARING,BALL 1
175 RC401-69030 BEARING,NEEDLE 1
180 RB401-69340 SPRING,PLATE 4
190 RC401-69060 RING,SNAP 1
200 04612-00250 CIR-CLIP EXTERNAL 1
210 RB401-69260 PLUG 1
220 RP471-70120 SCREW,HEX SOC CAP 5
230 RC401-69190 PLUG 5
240 RB401-69260 PLUG 1
250 RC401-69230 WASHER,SPRING 5
260 05411-00616 PIN SPRING 1
270 RB401-69370 SCREW,SET 1
280 RC401-69290 NUT,LOCK 1
290 RP471-70000 PUMP,GEAR 1
300 RP471-70130 COUPLING 1
310 RB401-69190 COLLAR 1
320 RB401-69420 BOLT 2
330 RB401-69430 WASHER,PLAIN 2
340 RP471-70032 KIT SEAL; Serial No. >=22345; Not Interchangeable 1
340 RP471-70030 KIT SEAL; Serial No. <=22344 1
350 RB401-69220 GASKET 1
360 RB401-69350 SEAL,OIL 1
370 04810-50750 O RING 1
380 04817-00110 O RING 2
390 04817-00120 O RING 2
400 RB401-69390 WASHER SEAL; ORDER BY REF.No.440; Serial No. <=22344 1
400 RA251-69390 WASHER(SEAL); Serial No. >=22345; Not Interchangeable 1
410 04817-00070 O RING 1
420 04810-50550 O RING 1
430 04817-00080 O RING 1
440 RA251-99390 WASHER; OPTION; Serial No. <=22344 1
RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 Main Hydraulic Pump for Kubota U35-4 KX033-4 Mini Excavator
1. OEM Part Number & Machine Compatibility
  • Original pump model: Nachi PVD-0B-28P-6G3-5243A tandem variable displacement piston pump assembly
  • Kubota OEM part numbers: RC788-61112, RC788-61113, RC788-61122, RC788-61123, RC788-61124
  • Fully compatible mini excavator models: Kubota U35-4, KX033-4
  • All five listed part numbers are upgraded supersession versions with identical mounting structure and internal hydraulic configuration, fully interchangeable for direct replacement on these two machine models
2. Core Technical Specifications
  • Structure type: Dual variable axial piston main pump integrated with built-in pilot charge gear pump
  • Main pump displacement: 28 cm³/rev × 2; pilot gear pump displacement: 10.8 cm³/rev
  • Rated continuous working pressure: 23.5 MPa; preset maximum relief pressure: 27.0 MPa for system overload protection
  • Rated operating speed range: 2200–2400 rpm, precisely matched to the original D1703 engine configuration of U35-4 and KX033-4
  • Mounting bolt layout, input shaft spline dimension and hydraulic port positioning strictly comply with Kubota OEM dimensional drawings
  • Pump housing adopts high-strength ductile iron; internal pistons, valve plates and friction components use quenched wear-resistant alloy steel to extend service lifespan
3. Internal Structure & Functional Introduction
  • Dual main piston pumps output high-pressure hydraulic oil to drive boom, arm, bucket, travel and swing operational movements
  • Integrated pilot gear pump supplies stable pressurized oil for pilot control circuits and system hydraulic oil replenishment
  • Built-in load-sensing power regulator automatically adjusts total pump flow output according to real-time load changes, preventing engine stall during heavy digging and loading operations
  • Compact tandem integrated layout perfectly fits the limited hydraulic compartment space of U35-4 and KX033-4 compact excavators
4. Product Advantages
  • Exact 1:1 OEM outer casting dimensions, supporting plug-and-play installation without modification to hydraulic pipelines or chassis mounting structure
  • Every finished pump undergoes comprehensive hydraulic bench inspection covering pressure stability, flow consistency and internal leakage testing before shipment
  • Complete maintenance spare parts are held in stock, including overhaul seal kits, piston assemblies, swash plates and valve plates for separate component replacement during repair work
  • Multiple supersession part numbers fit two machine models, simplifying spare part ordering and inventory management for suppliers and repair workshops
5. Packaging & Global Delivery Details
  • Input shaft and all hydraulic ports are coated with anti-rust grease and sealed with protective dust plugs
  • The entire pump is wrapped with moisture-proof plastic film and secured inside export-grade solid wooden crate to prevent collision and moisture damage during long-distance sea or air transportation
  • In-stock items can be dispatched within 3 to 5 working days after order confirmation
  • Multiple global shipping solutions are available: international air express, sea LCL/FCL bulk shipment and overland truck transportation for global customers
6. FAQ
  • Q: Are all five RC788 series part numbers mutually interchangeable?
    A: Yes, RC788-61112, RC788-61113, RC788-61122, RC788-61123 and RC788-61124 are iterative upgraded part numbers for the same Nachi PVD-0B-28P pump assembly, fully cross-replaceable for U35-4 and KX033-4.
  • Q: Can this pump install directly on both U35-4 and KX033-4?
    A: Yes, unified mounting sizing and factory-calibrated hydraulic parameters enable direct bolt-on fitting for both models with no extra adjustment or modification required.
  • Q: Are individual repair spare parts available for this hydraulic pump?
    A: Corresponding full overhaul seal kits, piston shoe assemblies, valve plates, swash plates and standalone pilot gear pump spare parts are all available for partial overhaul and individual component replacement work.
  • Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
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Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part

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Product Detail
Part name :
Hydraulic pump
Model Number :
U35-4 KX033-4
Warranty :
1 Year
Price :
Negotiated price
Packaging Details :
Wooden Case Packing
Shipment :
Sea / Air / Express DHL FEDEX UPS
Contact Supplier
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part
Kubota U35-4 KX033-4 Main Hydraulic Pump RC788-61112 RC788-61113 RC788-61122 RC788-61123 RC788-61124 OEM for Mini Excavator part

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED

Verified Supplier
6 Years
guangzhou
Since 2013
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Hydraulic Excavator Parts, Hydraulic Pump Excavator Parts, Travel Motor Assy
Total Annual :
900000-3000000
Employee Number :
50~93
Certification Level :
Verified Supplier
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