Hydraulic Hammer & Breaker Rebuilds

Hydraulic
Pump
Repair in Chino, CA

General Engineering LA provides professional hydraulic pump repair for industrial facilities, construction contractors, mobile equipment operators, and manufacturing plants across Southern California. With over 40 years of hydraulic repair experience, our Chino shop rebuilds and restores hydraulic pumps of all types and brands diagnosing the root cause of failure and returning your pump to full rated performance.

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IMG 2493 Original

What We Repair

Hydraulic Pump Types We Repair

Hydraulic pumps are the heart of any hydraulic system. When the pump fails, the entire system goes down. General Engineering LA repairs all major pump types used in industrial, mobile, and process applications:
Piston Pumps (Axial & Radial)

The most common pump type in high-pressure industrial systems. Axial piston pumps are used in excavators, presses, injection molding machines, and heavy equipment. We rebuild variable displacement and fixed displacement piston pump assemblies, including replacement of pistons, cylinder blocks, valve plates, swashplates, and rotating groups.
Vane Pumps

See Our Process
IMG 1351 Original

Common Failures

Hydraulic Pump Problems We Repair

40 Years of Hydraulic Expertise

Hydraulic pump repair is a precision trade that requires proper tooling, measurement equipment, and experience. We have all three.

All Work Performed In-House

Every disassembly, inspection, measurement, and rebuild is done by our own technicians in our Chino facility for faster turnaround and tighter quality control.

Pressure-Tested Before Delivery

Every repaired pump is hydraulically tested to confirm rated pressure and flow before we release it.

Honest, Itemized Quotes

We provide a written quote after inspection and before any work begins. You approve the repair, then we do it.

Root Cause Diagnosis

We do not just replace what is broken. We find out why it broke and tell you if contamination, incorrect fluid, or system pressure caused the failure.

Industrial-Grade Parts

We source OEM and OEM-equivalent replacement parts instead of substandard components that shorten rebuild life.

IMG 3939
IMG 3938
IMG 3937
IMG 3171
IMG 2996
IMG 2495 Original
IMG 2494 Original
IMG 2493 Original
IMG 2489 Original
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Hydraulic Pump Repair vs. Replacement Which Is Right?

Repair is typically right when:

  • The pump housing and major castings are structurally sound.
  • Failure is confined to internal wear components such as the rotating group, seals, or valve plate.
  • Repair cost is less than 40–50% of a replacement pump's cost.

Replacement may make more sense when:

  • The pump housing has cracks, severe erosion, or structural damage.
  • The pump is obsolete and internal parts are no longer available.
  • Contamination damage is so extensive that total rebuild cost approaches replacement cost.

Hydraulic Breaker Repair FAQ

Standard pump rebuilds are completed in 3–7 business days from receipt of the unit and approval of the repair quote. Pumps requiring special-order parts or with extensive damage may take longer we communicate lead times upfront.

Cost depends on the pump type, size, and extent of wear. A shaft seal replacement is far less expensive than a full rotating group rebuild. We provide an itemized written quote after inspection diagnostic evaluation is typically at no charge.

Yes. Pumps that have sat idle often develop dry-start damage when first operated again, and seals can degrade over time. We assess the extent of damage and provide a repair recommendation.

We can help you diagnose this. Symptoms like slow cylinder movement or low pressure can come from the pump, relief valves, or downstream components. If you bring in the pump, we will test it and tell you whether it is the source of your system problem.

Yes. Contamination damage is one of the most common failure modes we see. We rebuild contaminated pumps regularly. We will also advise on system flushing procedures before the pump goes back into service.

Get Your Hydraulic Pump Rebuilt Right

A failed hydraulic pump brings your entire operation to a stop. General Engineering LA provides fast, expert hydraulic pump repair from our Chino, CA facility with pressure testing and documented results on every rebuild.

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Serving Chino, CA and all of Southern California · Open Mon–Fri 7AM–5PM