This 173-1203 Pilot Gear Pump (Charge Pump) is high-quality auxiliary hydraulic pump, specially matched with the SBS80 main piston pump for Caterpillar excavators. It provides stable pilot pressure for the control system to operate joystick, boom, arm and bucket.
Direct replacement for original part, no modification required, widely used for repair and rebuild of Cat 312C, 315B excavators.
✅ Fit Info：
Part Number: 173-1203 Compatible Models: Caterpillar 312C, 315B Excavator Matched Main Pump: SBS80 Hydraulic Main Pump
Komatsu Engine 4D94E-1 Bulldozer D20P-6 Hydraulic Clutch Pump 07421-71401
This 07421-71401 Main Clutch Gear Pump is a high-quality aftermarket hydraulic replacement pump for Komatsu bulldozers.
It supplies hydraulic oil for the main clutch system, ensuring stable clutch engagement and smooth bulldozer operation.
✅ Fit Models：
Komatsu Bulldozer D20A, D20P, D20Q, D20S, D20-5, D20-6, D20-7, D20-8 Part Number: 07421-71401
This AP2D25 pilot gear pump is a high-quality replacement hydraulic part for excavators.
Fit for Daewoo DH55, DH60, DH80, DH80-7, Hyundai R55-5, R55-7, R60-5, R60-7, R80-7.
Manufactured to strict OEM specifications, stable performance, low noise, good sealing, long service life.
Perfect replacement when your original pilot pump leaks, weak pilot pressure or broken.
We also supply full hydraulic spare parts including main pump, travel motor, swing motor, control valve, seal kit.
Komatsu D60 D70 D65 Dozer 07441-67503 Hydraulic Gear Pump
Part Number: 07441-67503 Product: Hydraulic Gear Pump / Dozer Hydraulic Oil Pump
Fitment: Komatsu D60, D70, D65 Bulldozer / Dozer
This 07441-67503 hydraulic gear pump is a direct replacement spare part for Komatsu D60, D70 and D65 series bulldozers. It provides reliable hydraulic power to control the bulldozer blade, widely used in earthmoving, land clearing and construction projects.
Made from high-strength alloy steel gears with precision machining, this hydraulic pump delivers steady oil flow, low noise and great wear resistance. Every unit is pressure tested before shipment to ensure stable performance under harsh heavy-load working conditions.
Part Number: 07446-66200, 07446-66103
Product: Work Equipment Hydraulic Gear Pump / Bulldozer Work Pump
Fitment: Komatsu D155A-2 Bulldozer, also compatible D150A-1, D155A-1, D155A-2A, D455A-1
This 07446-66200 / 07446-66103 work equipment pump is a direct replacement hydraulic gear pump for Komatsu D155A-2 bulldozer.
It supplies hydraulic power to the bulldozer blade and ripper system for earthmoving and mining projects.
Made with high-strength alloy steel gears, precision machining ensures low noise, stable oil flow and outstanding wear resistance. Every pump passes strict pressure testing before shipment to guarantee reliable performance under severe heavy-load working environments.
23A-60-11200 Hydraulic Gear Pump for Komatsu GD623 GD611 GD511 Motor Grader.
High quality grader hydraulic oil pump, direct replacement construction machinery spare parts.
Part Number: 23A-60-11200 Product: Hydraulic Gear Pump / Grader Oil Pump Fitment: KOMATSU Motor Grader GD623, GD611, GD511 (Also compatible GD505, GD521, GD605, GD625, GD661 series)
This 23A-60-11200 hydraulic gear pump is a direct replacement part for Komatsu motor grader. Adopts high-strength alloy gear, precise machining for low noise and steady oil flow. Strict pressure testing before delivery, durable for road construction, highway maintenance and earthmoving work.
✅ Advantages • OEM equivalent dimension, easy installation • Wear-resistant alloy gear, long service life • Stable hydraulic pressure output • Rigorous factory inspection
Hydraulic Gear Pump Part Numbers: 07444-66102, 07444-66200, compatible with Komatsu D80A-18 and D85A series bulldozers.
It serves as the transmission hydraulic oil pump, delivering reliable power for dozer transmission system.
Made to OEM dimension standards, precision machining, good sealing, low leakage and long service life.
Perfect replacement spare part for construction and mining dozers to reduce machine downtime.
Hydraulic Gear Pump Assembly Part No. 705-58-44050, compatible with Komatsu D375A-3, D375A-5 bulldozers.
SAR4+140+71+22
This triple hydraulic gear pump supplies hydraulic power for dozer steering and working system.
Manufactured to OEM specifications, tight tolerance, low noise, reliable performance under heavy load.
Ideal replacement part for construction and mining dozers, with long service life.
