Hydraulic Gear Komatsu/CAT Pump

KOMATSU WA380-3 WA350-3 LOADER GEAR PUMP 705-55-34180 705-55-34181 Four Joint section

 

Our 705-55-34180  705-55-34181 hydraulic gear pump is a premium aftermarket replacement tailored for Komatsu WA350-3 and WA380-3 wheel loaders. The 705-55-34181 is the upgraded supersession of 705-55-34180, with full interchangeability in installation size, flow parameter and working performance, enabling plug-and-play replacement without any modification.

Featuring a 100+50+36+25cc multi-section integrated structure, this gear pump independently provides stable hydraulic power for the loader’s steering system and working device circuits including boom and bucket. Made of high-strength wear-resistant alloy and processed with precise machining technology, it delivers outstanding pressure resistance, low noise operation and excellent anti-leakage performance, perfectly adapting to long-duration heavy-duty construction working environments.

Manufactured in strict compliance with OEM standards, this hydraulic gear pump features accurate mounting dimensions and superior sealing stability. It is a reliable, high-cost performance replacement part to renovate faulty hydraulic pumps, effectively restoring the hydraulic system sensitivity and overall working efficiency of Komatsu loaders, which is the ideal choice for machinery maintenance and commercial replacement.
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Product Details

 

 

It adopts 100+50+36+25cc multi-section structure.

 

4-stage integrated multi-circuit design provides independent, stable power for steering and lifting systems, no mutual interference.

 

Upgraded wear-resistant alloy + precision sealing solves common aftermarket pump issues: oil leakage, pressure drop and short service life.

 

Factory-upgraded supersession part, 100% OEM interchangeable. No modification, no pipe adjustment, no fit error — save labor time and repair cost.

Main pump 705-11-34100 W90-3
Steering  Pump 705-11-33100  W90-2
transmission pump 385-10079282 W90-3.W120-3
transmission pump 385-10234561  W120-1-2-3.530
Steering  Pump 705-11-36100 W90-2-3.W120-3
Main pump 705-51-32000  W90-3.W120-3
Main pump 705-11-38000 W180-1.545/540-1/540-B-1/545-1
Steering  Pump 705-11-36000 W120-2
Main pump 705-55-34000 W260
Main /Steering pump 705-11-33011 WA100-1/WA120-3
Main pump 705-11-34011 WA120-1
Lift/dump/steering pump 705-51-20070 WA180-1.WA300-1
Lift/dump/steering pump 705-51-20150 WA200-1 SN10001-19999
Lift/dump/steering pump 705-51-20290 WA200-1 SN20001-
Lift/dump/steering pump 705-51-20090 WA180-1/WA200-1 SN20001-
Lift/dump/steering pump 705-51-20240 WA250-1
Lift/dump/steering pump 705-51-20400 WA200-1
Lift/dump/steering pump 705-51-20290 WA250-3
  705-56-36040  WA250-5
Lift/dump/steering pump 705-51-22000 WA300-1/WA320-1
Lift/dump/steering pump 705-51-20140 WA300-1/WA320-1
Lift/dump/steering pump 705-51-20280 WA300-1/WA320-1
transmission pump 705-51-20480 WA320-3
Lift/dump/steering pump 705-55-24130 WA300-3L/WA320-3CS.WA320-3DZ
transmission pump 705-51-20430 WA320-3CS.WA320-3DZ
  705-56-36051 WA320-5
transmission pump 705-11-35010 WA350-1/WA380-1/WA400-1/WA420-1
Lift/dump/steering pump 705-52-30080 WA350-1
Lift/dump/steering pump 705-55-34110 WA350-1
transmission pump 705-51-20440 WA380-3/WA380-3DZ
  705-55-34181 WA380-3
  705-55-34190 WA38-3DZ
Power pump 705-51-30600 WA380-5
Lift/dump/steering pump 705-55-33080 WA380-5
Lift/dump/steering pump 705-56-34040 WA400-1
transmission pump 705-22-40070 WA420-3/WA470-3/WA420-3DZ
switch/steering pump 705-52-30360 WA420-3/HD255-5
transmission pump 705-55-33100  WA430-5
Steering  Pump 705-12-37010 WA450-1/WA470-1
Steering  Pump 705-12-37040 WA450-1/WA470-1
transmission pump 705-12-36010 WA450-1/WA470-1
switch/ p.p.c pump 705-52-20240 WA450-1/WA470-1
switch /p.p.c pump 705-52-20190 WA450-1/WA470-1
switch /p.p.c pump 705-52-20100 WA450-1/WA470-1/PC60-1
Steering  Pump 705-12-40010 WA450-1/WA470-1/WA500-1/HD465-2-3
transmission pump 705-12-38010 WA500-1/3
Steering  Pump 705-52-30260 WA500-1
Steering  Pump 705-52-30130 WA500-1
trans/lub/switch pump 705-58-46001 WA600-1
Gear Pump 705-41-08070 PC20-7
Gear Pump 705-86-14000 PC30-5
Gear Pump 705-41-08001 PC30-6
Gear Pump 705-41-08010 PC40-6
Gear Pump 705-41-08090 PC40-7
Gear Pump 20T-60-00400 PC50UU-1
Gear Pump 705-52-20010 PC60-1
Gear Pump 705-58-24010 PC60-2
Gear Pump 705-56-24080 PC60-3
Gear Pump 705-52-20050 PC80-1
Gear Pump 705-56-34000  PC100-1
Gear Pump 705-58-34000 PC120-1
Gear Pump 705-56-24020 PC200-1
Gear Pump 705-56-24030 PC220-1
Gear Pump 704-24-28200 PC200-3
Gear Pump 704-24-28230 PC200-5
Gear Pump 704-24-24420 PC200-6
Gear Pump 705-58-34010 PC300-1
transmission pump 23A-60-11400 GD510R-1
Main pump 23A-60-11301  GD510R-1
transmission pump 23A-60-11200 GD521A-1/GD611A-1/GD661A-1
Main pump 23A-60-11100 GD511A-1/ GD521A-1
Hydraulic Pump 07430-66100 GD37-6/GD40/GD705R2
Work pump 23B-60-11100 GD521A-1/GD611A-1/GD661A-1
Hydraulic Pump 07430-67100 GD705R-2
transmission pump 705-12-32010 GD405A-1/GD505A-2
transmission pump 705-11-33011 GD605A-3
Transmission Pump 705-11-34011 GD705A-4
Hydraulic Pump 705-52-20090 GD705A-4
Hydraulic Pump 705-12-34010 GD705A-4
hoist pump 705-11-38110 HD200D-3
hoist/steering pump 705-52-22000 HD205-3
brake cooling pump 705-12-36010 HD205-3
transmission pump 705-11-36010 HD205-3
steering pump 705-12-36010 HD320-3/HD325-3-5
brake/trans cooling pump 705-52-30040 HD320-3/HD325-3-5
hoist/steering pump 705-52-30051 HD325-3-5-6
transmission pump 07441-67502 HD460-1
hoist/steering pump 07443-66503 HD460-1
hoist/steering/brake pump 705-52-32000 HD465-2-3-5/HD605-5
transmission pump 705-12-40010 HD465-2-3-5/HD605-5
hoist/steering/brake pump 705-52-32001 HD465-2-3-5/HD605-5

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