Piston Pump - Komatsu

Komatsu is one of the world's largest manufacturers of heavy equipment, with a global reputation for durability, fuel efficiency, and advanced hydraulics. Komatsu equipment operates in construction, mining, and industrial applications on every continent. At HE PUMP, we supply OEM-compatible Komatsu hydraulic pumps and engine components for the full Komatsu equipment range. Whether you need a hydraulic pump for a Komatsu PC200 excavator, a WA470 wheel loader, or a D65 bulldozer, we have the parts you need. Every product is manufactured to Komatsu OEM specifications for drop-in fitment and includes 12-month warranty coverage.

Komatsu Equipment Coverage

We supply hydraulic pumps and engine components for the complete Komatsu equipment lineup:

  • Hydraulic Excavators: PC130, PC138, PC200, PC210, PC220, PC228, PC300, PC350, PC360, PC400, PC450, PC600, PC650, PC700, PC800, PC1250, PC2000, PC3000 series — Komatsu hydraulic excavators known globally for durability, fuel efficiency, and advanced hydraulics
  • Wheel Loaders: WA180, WA200, WA250, WA300, WA320, WA380, WA420, WA470, WA480, WA500, WA600, WA700, WA800 series — Komatsu wheel loaders for material handling, construction, and aggregate handling
  • Bulldozers: D37, D39, D50, D65, D75, D85, D155, D275, D355, D375, D475, D575 series — Komatsu crawler tractors for dozing, grading, and heavy construction
  • Motor Graders: GD555, GD655, GD705, GD825 series — Komatsu motor graders for road construction, maintenance, and precision grading
  • Dump Trucks: HD325, HD405, HD465, HD605, HD785, HD985 series — Komatsu rigid-frame dump trucks for mining and heavy construction haulage

Komatsu Engine Series

Komatsu manufactures its own diesel engines for most equipment models:

  • SA6D108, SA6D125, SAA6D140, SAA6D170 Series: Komatsu EPA Tier 3 and Tier 4 engines — known for fuel efficiency, durability, and advanced emissions control
  • Engine Coverage: We supply water pumps, oil pumps, and fuel transfer pumps for all Komatsu engine series

Available Komatsu Hydraulic Pump Products

Komatsu equipment relies on high-performance hydraulic pumps:

  • Hydraulic Piston Pumps (Main & Pilot): For Komatsu excavator main hydraulics, wheel loader implement circuits, bulldozer blade hydraulics, and dump truck hoist systems — high-pressure pumps delivering the power Komatsu equipment demands
  • Hydraulic Gear Pumps (Charge & Steering): Charge pumps for main pump case pressure maintenance, and steering pumps for wheel loaders and graders — reliable, cost-effective pumps for medium-pressure circuits
  • Hydraulic Pump Assemblies: Complete pump units ready for bolt-on installation, including integrated charge pumps, pilot pumps, and control valves where applicable

Komatsu Engine Component Products

We supply engine components for Komatsu-owned diesel engines:

  • Engine Water Pumps: Coolant circulation pumps for Komatsu diesel engines — overheating causes rapid engine damage, particularly in mining and severe-duty applications
  • Engine Oil Pumps (Lube Pumps): Lubrication system pumps for Komatsu diesel engines — low oil pressure causes rapid engine wear
  • Fuel Transfer Pumps (Lift Pumps): Fuel delivery pumps for Komatsu diesel engines — ensures consistent fuel supply to the high-pressure common rail injection system

Signs of Hydraulic Pump Failure in Komatsu Equipment

Watch for these warning signs that a Komatsu hydraulic pump is failing:

  • Reduced hydraulic power: Slow implement movement, inability to lift rated load — internal leakage across worn piston shoes and cylinder block
  • Increased pump noise: Rattling, knocking, or whining from pump area — piston shoes damaged or valve plate badly worn
  • Overheating hydraulic oil: System temperature rises rapidly under load — internal leakage generating heat through fluid bypass
  • Metal particles in hydraulic oil: Magnetic drain plug or filter captures metal shavings — internal component wear debris
  • Loss of steering or grader function: Wheel loader steering or grader blade control becomes stiff — steering pump or control valve failure

Why Choose HE PUMP for Komatsu Parts?

Komatsu equipment operates in the world's most demanding environments — construction sites, open-pit mines, and industrial operations. Downtime costs are massive. HE PUMP helps you get back to work fast with:

  • OEM-Compatible Quality: Every part manufactured to Komatsu original specifications — drop-in fitment with no modifications required
  • Komatsu Engine Expertise: We understand Komatsu's unique engine designs (SA6D, SAA6D series) and supply precision-matching pumps and components
  • Comprehensive Equipment Coverage: Parts for Komatsu excavators, wheel loaders, bulldozers, motor graders, and dump trucks — one supplier for your entire Komatsu fleet
  • 12-Month Warranty: All products include 12-month warranty coverage against manufacturing defects
  • Competitive Pricing: Dealer-level quality at significantly lower prices — reduce equipment maintenance costs without sacrificing quality, critical for high-hour mining and construction operations
  • Worldwide Shipping: Fast shipping to job sites, mine sites, workshops, and warehouses worldwide, with express options available for urgent downtime situations

Keep Your Komatsu Equipment Productive

Don't let a failed hydraulic pump sideline your Komatsu excavator, wheel loader, bulldozer, grader, or dump truck. With HE PUMP's growing inventory of Komatsu hydraulic pumps and engine components, you can get back to work fast. All products are in stock and ready to ship. Contact our team with your Komatsu equipment model or pump part number for fast, accurate matching.

📧 Request a Quote for Komatsu Hydraulic Pumps or browse our hydraulic piston pump collection and gear pump collection for additional options.