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Hydraulic Pump Spare Parts Suppliers
A marine hydraulic pump that has lost pressure, started running hot, or begun to leak is usually rebuildable rather than scrap, and the fix is a set of internal parts matched to the pump. Hydraulic pump spare parts suppliers deal in exactly those items - the seal kits, rebuild kits, gear sets, and piston and vane parts that bring a worn pump back to its rated output. On this order the parts have to match the pump maker and model precisely, because a hydraulic pump lives or dies on internal clearances that a generic part will not hold.
What Wears Inside a Pump
The parts follow the pump type. A piston pump wears at the pistons, the cylinder barrel, the swash plate, and the valve or port plate, with the bearings and shaft seal behind them. A gear pump wears its gear set, wear plates, and bushings. A vane pump is usually renewed with a cartridge kit that carries the vanes, rotor, and ring together. Across all of them sit the common items - shaft seals, O-rings, gaskets, and bearings - that make up most seal and repair kits.
Seal Kit, Rebuild Kit, or Exchange Unit
There are three ways to buy the repair, and the right one depends on how far the pump has gone. A seal kit stops an external leak and little else. A full rebuild kit - seals, bearings, and the wear parts for that pump type - brings a tired unit back to pressure and is the usual choice for a pump worth keeping. Where the pump is too worn to rebuild, or the ship cannot spare it for the time a rebuild takes, a reconditioned exchange unit is often the answer: a tested, rebuilt pump supplied against the old one as a core. For long-lead steering and deck pumps, that exchange route is what keeps a vessel trading rather than waiting weeks for a new unit.
Genuine or Aftermarket Kit
Kits come as genuine maker parts or as aftermarket equivalents, and the choice is not automatic. On general deck machinery a quality aftermarket rebuild kit is often sound and cheaper. On a steering-gear pump it is not a choice at all: the parts carry the same class approval as the pump, and only the approved kit belongs on that duty. The risk with a cheap kit is not that it will not fit but that it will fit and still lose pressure, because a seal or piston a fraction out of tolerance rebuilds into a pump that never makes its rated output.
Identifying and Testing the Pump
The pump maker, model, and serial number define the hydraulic pump parts required, and Rexroth, Parker, Danfoss, Kawasaki, Vickers, and Hagglunds each build to their own internal designs. When the nameplate is corroded past reading, which is common on an old deck pump, a supplier works from the displacement, port pattern, and mounting to identify the unit. A rebuilt pump should be flow and pressure tested before it goes back into service, and many buyers keep a seal kit for the steering-gear pump aboard as a matter of course, since that is the one pump the ship cannot manage without. Fitting the kit is precise bench work, usually handled by a hydraulic systems service.
What to Confirm on Class-Critical Duty
Parts for an everyday deck pump are one thing; parts for a class-critical or oil-to-sea duty carry conditions worth checking before the order:
- Class approval held - for steering-gear and lifting-appliance pumps, parts that keep the unit's class type approval valid, because an unapproved kit can void it at survey.
- Seal compound matched to the fluid - seals rated for the fluid actually in the system, whether mineral, a fire-resistant HFC or HFDU grade, or an environmentally acceptable (EAL) grade on oil-to-sea duties such as thrusters and stabilizers.
- Material certificates where required - EN 10204 3.1 certification on pressure-containing and load-bearing parts for class acceptance.
- Cleanliness and testing - parts delivered clean and sealed against contamination, and any rebuilt unit flow and pressure tested with a report before it returns to service.
Give the pump maker, model, and serial number along with the symptom - a leak, lost pressure, or noise - and hydraulic pump spare parts suppliers can match the seal kit, rebuild kit, or exchange unit to the pump rather than to a generic parts list. When the barrel is scored, the swash plate is worn past tolerance, or the housing itself is cracked, no kit will bring the pressure back; at that point a new hydraulic pump costs less over its life than another rebuild that will not hold.
Find a Partner for Marine Hydraulic Pump Solutions
Finding the right hydraulic pump spare parts suppliers can make all the difference when it comes to keeping marine systems working reliably. At Records Marine, we connect you with trusted vendors offering marine-grade components built for long-lasting performance. Browse our list of verified suppliers and maintain consistent performance across your hydraulic systems.

Year Founded: 2011
RM verifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
Air Compressors
Air Horns
Air Starters
Diesel Generators
Electrical Horns
Engines (2-Stroke)
Engines (4-Stroke)
Filters
Fresh Water Generators
High Pressure Fuel Pumps
High Pressure Oil Pumps
MGPS (Marine Growth Prevention Systems)
Piston Pumps
(1)
BRAND:
DESMI
HEISHIN
HAMWORTHY
IMO
SHINKOKINZOKU
(6)

Year Founded: 2022
VerifiedCATEGORIES:
Hydraulic Pumps
Accomodation Ladders & Gangways
Diesel Generators
Electrical Winch & Windlass
Engine Room Ventilation Fans
Engine Starting Systems
Engines (2-Stroke)
Engines (4-Stroke)
Air Compressors
Lifeboat Davits
WAREHOUSES:
Indonesia
Singapore

Year Founded: 2021
VerifiedCATEGORIES:
Hydraulic Pumps
AIS (Automatic Identification Systems)
Air Compressors
Automation Control Equipment & Control Units
Centrifugal Pumps
Diesel Generators
Electrical Cranes
Electrical Winch & Windlass
Engines (2-Stroke)
Engines (4-Stroke)
WAREHOUSES:
India
United Arab Emirates

Year Founded: 2019
RM verifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
Accommodation Ladder Davits
Accomodation Ladders & Gangways
Air Compressors
Air Driven Motors
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
Boiler Automation Equipment
BWTS (Ballast Water Treatment Systems)
Compass (Gyro & Magnetic)
Control Air Dryers
CPP Systems (Controllable Pitch Propeller)
Cranes
Echo Sounder
Elevators
Exhaust Gas Boilers
Galley Equipment
Gas Detection Systems
Gearboxes & Planetary Reduction Systems
(24)

Year Founded: 2018
VerifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
(195)
BRAND:
DRAGFLOW
MARCO PUMPS
MarFlex
GemmeCotti
KSB
(60)
CLASS APPROVED:
IACS: ABS, ClassNK, CCS, BV
WAREHOUSES:
China

Year Founded: 2011
VerifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
(177)
BRAND:
DRAGFLOW
MARCO PUMPS
MarFlex
GemmeCotti
KSB
(60)
CLASS APPROVED:
IACS: DNV
WAREHOUSES:
Singapore
United Arab Emirates
Angola
Austria
Australia (209)

Year Founded: 2004
VerifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Accommodation Ladder Davits
Accomodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
Alpha Lubrication Systems
Anemometers
(162)
CLASS APPROVED:
IACS: ClassNK, BV

Year Founded: 2025
VerifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Accommodation Ladder Davits
Accomodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
Alpha Lubrication Systems
Anemometers
(166)
WAREHOUSES:
Hong Kong

Year Founded: 2020
RM verifiedCATEGORIES:
Hydraulic Pumps
Air Compressors
Air Driven Motors
Air Horns
Air Starters
Alpha Lubrication Systems
Automation Control Equipment & Control Units
BackWash Filters
Boiler Automation Equipment
Centrifugal Pumps
Control Air Dryers
Cranes
Diesel Generators
Distance Rings & Spacer Rings for Stern Tube
Engine Fuel Injection High Pressure Pipes (2-Strok
(66)
WAREHOUSES:
Turkey
China
Greece
Japan
South Korea (1)

Year Founded: 2021
RM verifiedCATEGORIES:
Hydraulic Pumps
15 PPM Monitoring Equipment
Accommodation Ladder Davits
Accomodation Ladders & Gangways
Air Compressors
Automation Control Equipment & Control Units
Boat Engines
Boiler Automation Equipment
Centrifugal Pumps
Cranes
(46)
BRAND:
MARCO PUMPS
KSB
DESMI
ShinShin
PLEUGER INDUSTRIES
(3)
WAREHOUSES:
China