Over 20 Years of Experience in Hydraulic Repair Services
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Caterpillar Hydraulic Repairs - Pumps, Motors and more

Do you need Caterpillar hydraulic repairs? Fill out the enquiry form and one of our team will be in touch with you to organise getting your Caterpillar hydraulic unit or hydraulic equipment repaired or serviced as soon as possible. Can’t wait? If it is an emergency, you can give us a call at:

Experience with over 20+ brands

All our work comes with a 12-month warranty

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Caterpillar Hydraulic Service & Repair Specialists

CJ Plant, offer a comprehensive repair service for your Caterpillar requirements.

We have the facilities to service and repair hydraulic units fitted to a range of Caterpillar machines.

We service & repair the following components: 

Fitted to Complete Range of Machines

  • Excavators
  • Bulldozers
  • Wheel Loaders
  • Dump Trucks.
  • Motor Graders
  • Mobile Crushers
  • Backhoe Loaders
  • Skid Steer Loaders
caterpillar component

We strip and inspect all hydraulic units FREE of charge

Our Hydraulic Repair Services

Hydraulic pump repair services to restore efficiency at CJ Plant.
Hydraulic Pump Repair
Hydraulic motor repair services for reliable operation at CJ Plant.
Hydraulic Motor Repair
Swing gearbox repair services to maintain optimal function at CJ Plant
Hydraulic Repair Services
Centre swivel joint repair services for improved stability at CJ Plant
Centre Swivel Joint Repair
Control valve repair services to ensure optimal performance at CJ Plant
Control Valve Block Repair

Our Process

Contact us to arrange a quote when your plant and machinery is down, you need a solution fast. We can provide rapid pick up, evaluation, diagnosis, and accurate quote to get you up and running in the quickest possible time. Our professional team are skilled in all aspects of hydraulic repair and rebuilding, and pride ourselves on helping our clients minimise their downtime and any interruption to their operations.

Free Inspection

All units received into the workshop are cleaned before being stripped. One of our skilled engineers will then carefully dismantle and inspect your unit free of charge.

No Obligation Quote

Our inspection is followed up with comprehensive findings report and competitive no obligation quote for any required work.

Repair Process

As part of the repair process, all damaged and worn parts will be replaced, along with all bearings and seals. Mating faces will be reworked, and the unit will be thoroughly cleaned before being rebuilt back to OEM specifications. As standard, any unit received with fittings will be returned to customers cleaned and all O-rings will be replaced.

Full Post Repair Testing

The unit will then be tested on our custom-built test rig. Our test rig has been designed specifically for purpose and has the flexibility to test the majority of products available.

What Our Clients Say

UK HardwoodsTeam
An excellent service from beginning to end. We had fantastic communication throughout and couldn't be more thankful for all of the advice offered. Have already recommended you as a company to others.
Christopher Kinahan
A fantastic business that provides a great service and run by a nice family. There's a great deal of knowledge in this company and you can rest assure that your hydraulic pump or motor is in good hands.
desmond JENKINS
C J Plqnt repaired an obsolete pump for us and the service was second to none . I also know a few others who have dealt with them in the past and the work has been spot on first rate service and good rates too 👍👍
craig magnet
Helpfull and friendly people

FAQs

Caterpillar excavators utilise various hydraulic pump brands, including Kawasaki, Rexroth, Nachi as well as Caterpillar-branded pumps, and other OEM (Original Equipment Manufacturer) pumps. Piston pumps are favoured in excavator hydraulic systems for their high-pressure capabilities and efficiency. Vane pumps, found on older models, are also used.

You may need to look at a full hydraulic pump repair service if your Caterpillar pump starts exhibiting slow or jerky hydraulic movements, unusual noises, fluid leaks, overheating, low pressure or consistently unreliable operation. Regular inspection and monitoring performance changes help prevent major failures and costly downtime.

Oil contamination – Dirt, debris or degraded oil enters the system, reducing lubrication and causing blockages
Excessive heat – Overheating from worn seals, clogged cooling or faulty components increases stress and wear
User or mechanical mistakes – Using incorrect parts, wrong fluids or exposing the pump to sudden loads
Cavitation – Drawing in more fluid than the pump can handle creates collapsing bubbles that harm internal parts
Aeration – Low oil, loose clamps or damaged hoses allow air in, producing knocking or squealing noises

Of course. Every hydraulic pump or motor rebuild and repair completed by CJ Plant engineers, no matter the size or initial complexity, undergoes thorough testing. Using purpose-built jigs, we rigorously assess all repaired equipment to ensure optimal performance, reliability and safety.

Get in Touch

To find out more information about our Caterpillar hydraulic repair services, please contact our expert team.