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Hydraulic Parts for Excavators: Pumps, Motors, Cylinders, Valves & Seal Kits

Hydraulic parts are the operating core of every excavator, governing every function from digging and lifting to swinging and travelling across the site. At Imara Engineering Supplies, we stock a complete range of OEM-quality excavator hydraulic parts designed to meet or exceed original manufacturer specifications. Aftermarket does not mean inferior; our hydraulic components are manufactured to the same tolerance and performance standards as genuine parts, at a price that keeps your operation cost-efficient.

Every component we supply is quality-inspected and backed by our fitment assurance, giving you full confidence whether you are carrying out a scheduled rebuild or an emergency repair. Below, you will find our complete range of excavator hydraulic parts organised by category, from hydraulic pumps and motors to cylinders, valves, and full seal kits.

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614 products

Komatsu PC200 Valve 702-21-57400 - Hydraulic Pump Solenoid

Hydraulic Main Pump Solenoid Valve 702-21-57400 for Komatsu PC200-7 PC200-8 Excavators

Regular price $377.00
Sale price $377.00 Regular price $331.00
Hydraulic Oil Cooler 20Y-03-31121 20Y0331121 for Komatsu PC200-7

Hydraulic Oil Cooler 20Y-03-31121 / 20Y0331121 for Komatsu PC200-7 Excavator

Regular price $1,766.00
Sale price $1,766.00 Regular price
Hydraulic Main Relief Valve 310-0395 306-4599 for CAT E320B E330C E320C Excavator

Hydraulic Main Relief Valve 310-0395 306-4599 for CAT E320B E320C E330C – Excavator

Regular price $146.00
Sale price $146.00 Regular price
Hydraulic Monoblock Valve P120 Directional Control Valve for Excavator – Control Valve

Hydraulic Monoblock Valve P120 Directional Control Valve for Excavator – Control Valve

Regular price $151.00
Sale price $151.00 Regular price
Hydraulic Fan Motor Pump 708-1U-00133 for Komatsu D275A-5

Hydraulic Fan Motor Pump 708-1U-00133 for Komatsu D275A-5 Bulldozer

Regular price $5,466.00
Sale price $5,466.00 Regular price $3,697.00
Hydraulic Fan Pump 564-9801 for Cat 336GC 345GC 349GC 352GC

Caterpillar

Hydraulic Fan Pump 564-9801 for Caterpillar 336GC 345GC 349GC 352GC – Excavator

Regular price $2,989.00
Sale price $2,989.00 Regular price $452.00
Hydraulic Axial Piston Pump 257-6254 / 20R-6568 for CAT

Hydraulic Axial Piston Pump 257-6254 / 20R-6568 for CAT – Excavator

Regular price $3,511.00
Sale price $3,511.00 Regular price $703.00
Hydraulic Fan Motor 307-3036 for CAT 216B 226B Steer Loader

Caterpillar

Hydraulic Fan Motor 307-3036 for CAT 216B 226B – Skid Steer Loader

Regular price $552.00
Sale price $552.00 Regular price $173.00
Hydraulic Fan Motor 512-0949 for CAT C-Series – Excavator

Excavators

Hydraulic Fan Motor 512-0949 for CAT C-Series – Excavator

Regular price $1,459.00
Sale price $1,459.00 Regular price $730.00
Hydraulic Fan Motor 512-0949 / 505-5180 / 505-5179 CAT 345GC

Hydraulic Fan Motor 512-0949 / 505-5180 / 505-5179 for CAT 345GC 349GC 336GC – Excavator

Regular price $1,204.00
Sale price $1,204.00 Regular price $602.00
Hydraulic Fan Motor 505-5179 for CAT 336GC – Excavator

Caterpillar

Hydraulic Fan Motor 505-5179 for CAT 336GC – Excavator

Regular price $301.00
Sale price $301.00 Regular price $151.00
Hydraulic Fan Pump 524-0925 / 564-9801 for CAT 340E 345

Hydraulic Fan Pump 524-0925 / 564-9801 for CAT 340E 345 – Excavator

Regular price $1,766.00
Sale price $1,766.00 Regular price $883.00
Hydraulic Fan Motor 334-6234 for CAT 966H – Loader

Caterpillar

Hydraulic Fan Motor 334-6234 for CAT 966H – Loader

Regular price $522.00
Sale price $522.00 Regular price $261.00
Hydraulic Gear Pump 160-0196 for CAT 140H 140G 13G 120G

Excavators

Hydraulic Gear Pump 160-0196 for CAT 140H 140G 13G 120G – Motor Grader

Regular price $1,304.00
Sale price $1,304.00 Regular price $652.00
Hydraulic Fan Motor KYBMSF46 20460-34604 for Volvo

Caterpillar

Hydraulic Fan Motor KYB MSF46 20460-34604 for Volvo – Excavator

Regular price $2,859.00
Sale price $2,859.00 Regular price $891.00
Hydraulic Drive Motor 74318-DDA for Eaton – Travel Motor

Caterpillar

Hydraulic Drive Motor 74318-DDA for Eaton – Travel Motor

Regular price $1,605.00
Sale price $1,605.00 Regular price $803.00
Hydraulic Fan Gear Pump 194-8384 for CAT E330C – Excavator

Caterpillar

Hydraulic Fan Gear Pump 194-8384 for CAT E330C – Excavator

Regular price $1,154.00
Sale price $1,154.00 Regular price $216.00
Hydraulic Fan Piston Pump 235-2716 CAT 980H – Wheel Loader

Hydraulic Fan Piston Pump 235-2716 for CAT 980H – Wheel Loader

Regular price $2,468.00
Sale price $2,468.00 Regular price $602.00
Hydraulic Fan Motor & Piston Pump 266-8034 for CAT 330D

Hydraulic Fan Motor & Piston Pump 266-8034 for CAT 330D 345B – Excavator

Regular price $2,904.00
Sale price $2,904.00 Regular price $400.00

Collection: Hydraulic Parts

Hydraulic Pumps for Excavators

The hydraulic pump is the pressure source for your entire excavator system; without it, no attachments move, and no functions operate. Imara Engineering supplies a full range of excavator hydraulic pumps built for high-cycle, high-pressure working environments. Our pump range covers four key categories:

  • Main Hydraulic Pumps — The primary drive pump is responsible for generating full system pressure across all excavator functions. Available for Komatsu PC200, PC300, CAT 320, 323, Hitachi ZX series, and more. 
  • Gear Pumps — Used in auxiliary and charge circuits, gear pumps deliver consistent low-pressure flow for pilot, steering, and cooling functions across excavator and loader models.
  • Pilot Pumps — The pilot pump powers your joystick and control circuit, translating operator input into machine movement. A failing pilot pump results in sluggish or completely unresponsive controls. 
  • Piston Pumps — High-efficiency axial piston pumps built for the variable-displacement demands of modern excavators, manufactured to OEM tolerance for long service life. 

Hydraulic Motors for Excavators

Hydraulic motors convert pressurised fluid into the rotational force that drives your machine's movement and upper structure rotation. A worn or failing motor causes slow travel, loss of swing torque, and unsafe machine behaviour. Imara Engineering supplies motors for the two most critical drive functions on any excavator:

  • Travel Motors — Also called final drive motors, travel motors power the undercarriage tracks under continuous heavy load. We supply complete travel motor assemblies and internal components for all major excavator brands. 
  • Swing Motors — The swing motor drives the rotation of the upper structure. Slew motor failure is one of the most common and costly hydraulic failures on an excavator. Our replacements restore full slewing speed and torque. 

Hydraulic Cylinders for Excavators

Hydraulic cylinders are the linear actuators of your excavator, extending and retracting to move the boom, arm, and bucket through their full working range. A leaking or seized cylinder reduces breakout force, creates safety risks on site, and significantly slows productivity. Imara Engineering supplies hydraulic cylinders and circuit components across four categories:

  • Boom Cylinders — The largest cylinders on your excavator, responsible for raising and lowering the boom under full load. Supplied as complete assemblies for Komatsu, CAT, Hitachi, and other brands. 
  • Arm Cylinders — Also called stick cylinders, arm cylinders control the reach and curl of the dipper arm. Available for all major excavator models with direct bolt-on fitment. 
  • Bucket Cylinders — Bucket cylinders deliver curling and dumping force at the working end of your machine. Matched to your model for guaranteed fitment. 
  • Hydraulic Hoses & Pipes — High-pressure hydraulic hoses, pipes, and fittings connecting your entire hydraulic circuit. Available in standard sizes and custom lengths for all excavator types. 

Hydraulic Valves for Excavators

Hydraulic valves regulate pressure, flow, and direction across your excavator's entire hydraulic circuit. A faulty valve causes erratic machine behaviour, pressure loss, and uncontrolled movement, making it one of the most critical service items on any excavator. Our valve range covers three key types:

  • Control Valves — The main control valve (MCV) distributes hydraulic flow to each function: boom, arm, bucket, travel, and swing. We supply complete assemblies and individual spool sections. 
  • Relief Valves — Pressure relief valves protect your hydraulic system from overpressure damage, preventing costly failures in pumps, cylinders, and motors downstream. 
  • Regulator Valves — Flow and pressure regulator valves maintain consistent hydraulic performance under variable load conditions, ensuring smooth, predictable machine response at all times. 

Hydraulic Seals & Kits for Excavators

Hydraulic seals are the most frequently replaced components in any hydraulic system. A worn or damaged seal causes fluid leakage, pressure loss, and internal contamination, accelerating wear across the entire circuit if left unaddressed. Imara Engineering offers a complete hydraulic seal kit range covering every major assembly on your excavator:

  • Pump Seal Kits — Rebuild your hydraulic pump without replacing the entire unit. Includes all internal seals, o-rings, and gaskets for a full pump overhaul. Shop Pump Seal Kits →
  • Motor Seal Kits — Complete seal kits for travel and swing motor rebuilds. Restore internal operating pressure and eliminate external leaks. 
  • Hydraulic Cylinder Seal Kits — Full seal and wiper ring kits for boom, arm, and bucket cylinder rebuilds. Restore cylinder efficiency and eliminate rod seal leaks. 
  • Centre Joint Seal Kits — The centre joint (swivel joint) connects the upper and lower hydraulic circuits through the slew ring. Our kits restore fluid-tight operation and prevent cross-circuit contamination. 
  • Transmission Seal Kits — Final drive and gearbox seal kits for travel system rebuilds. Prevent oil migration and maintain full drive efficiency. 
  • O-Ring Kits — Comprehensive o-ring assortment kits for hydraulic circuit maintenance, available in metric and imperial sizes compatible with all major excavator brands. 

Why Source Your Hydraulic Parts from Imara Engineering?

When your machine is down, every decision counts. Here is why operators and fleet managers across Africa trust Imara Engineering for their excavator hydraulic parts:

  1. OEM-Grade Quality — All parts are manufactured to original equipment specifications — same tolerances, materials, and pressure ratings as genuine components.
  2. Guaranteed Fitment — Every part is cross-referenced by machine model, serial number, and OEM part number for a direct, no-modification fit.
  3. Ready Stock, Fast Dispatch — We maintain inventory on all high-demand hydraulic parts for prompt order processing and fast dispatch to your site.
  4. Wide Brand Coverage — Komatsu, Caterpillar, Hitachi, Volvo, Doosan, Kobelco, Bobcat, Case, and more — all covered under one roof.
  5. Parts Specialist Support — Not sure which part you need? Our team will match the correct component to your machine before you place your order.

Frequently Asked Questions

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