Iowa Hydrostatic Transmission & Agricultural Hydraulic Repair

Precision Pump, Motor & Transmission Rebuilding for Iowa Farms & Fleets

In Iowa's agriculture-driven economy, equipment uptime during planting and harvesting seasons is critical. A failed hydrostatic ground drive on a combine, sprayer, or utility tractor can quickly stall operations during tight weather windows. Agricultural producers, equipment dealerships, and construction contractors need a hydraulic repair partner capable of delivering rapid, dependable rebuilds backed by rigorous quality testing.

At Hydrostatic Transmission Service, LLC, we have over 100 years of combined experience specializing in the rebuilding, repairing, testing, and calibration of hydrostatic transmissions, high-pressure hydraulic pumps, and drive motors. Serving customers across Des Moines, Cedar Rapids, Davenport, Sioux City, Waterloo, Ames, and rural farming communities statewide, we restore hydraulic systems to exact factory standards.

Agricultural & Construction Machinery Solutions

We provide complete hydrostatic and hydraulic repair solutions for mobile and stationary machinery across Iowa:

Harvesting & Planting Machinery

Precision rebuilding of hydrostatic transmissions, variable displacement pumps, and wheel drive motors for combines, corn pickers, grain carts, self-propelled sprayers, and fertilizer applicators.

Heavy Utility & Row-Crop Tractors

Complete overhauls of main hydrostatic drive systems, steering charge pumps, and auxiliary hydraulic drive units for agricultural tractors.

Construction & Earthmoving Equipment

Restoring track drive motors, swing drives, and variable displacement pumps on skid steers, compact track loaders, backhoes, bulldozers, and wheel loaders.

Grain Handling & Industrial Equipment

Complete rebuild services for hydraulic power units, material handling machinery, packaging systems, and industrial drive units.

Why Rebuild with Hydrostatic Transmission Service?

Purchasing brand-new OEM hydraulic assemblies often leads to significant markups and lengthy factory backorders. Rebuilding through Hydrostatic Transmission Service delivers proven advantages:

  • Significant Cost Savings: Rebuilding restores full OEM operating performance at a fraction of the cost of new replacements.
  • Complete Component Restoration: Replacement of worn swash plates, cylinder blocks, pistons, valve plates, bearings, and complete seal assemblies.
  • 100% Dynamic Bench Tested: Every rebuilt unit is thoroughly tested under operating load to verify hydraulic pressure, flow rates, case leakage, and efficiency before shipment.
  • Strict Quality Standards: Every repair follows structured quality control procedures from failure analysis to final calibration.

Our Structured Repair Process

Every hydraulic component received at our facility follows a proven 7-step repair workflow:

Step 1 – Initial Inspection & Verification

We document component condition, check serial numbers, and verify exact OEM repair specifications.

Step 2 – Complete Teardown & Failure Analysis

Each unit is completely disassembled, cleaned, and measured to identify the root cause of failure (contamination, overheating, internal leakage, or wear).

Step 3 – Itemized Estimate & Approval

Customers receive a clear repair recommendation, replacement parts list, turnaround estimate, and repair cost before any work begins.

Step 4 – Precision Assembly & Bench Testing

Units are rebuilt with new OEM-specification components and run through extensive dynamic bench testing to ensure full performance under operating pressure.

Major Agricultural & Industrial Brands Serviced

Our technicians specialize in the repair and rebuilding of components from leading manufacturers:

John Deere Case IH New Holland Sauer-Danfoss / Danfoss Eaton Parker Hannifin Bosch Rexroth Sundstrand Kubota Bobcat Caterpillar Hydro-Gear Vickers Char-Lynn White Drive Products

Iowa Shipping & Short-Time Exchange Program

Shipping hydraulic components from Iowa to our facility is simple. Our team provides step-by-step guidance on draining fluids, capping ports, and packaging your unit securely for parcel or freight transit.

During peak planting or harvesting seasons when machine downtime cannot wait, ask about our Short-Time Exchange Program to receive an already rebuilt, fully tested replacement unit from inventory quickly.

Need a Hydrostatic Repair Estimate for Your Iowa Equipment?

Contact our experienced technical team today to discuss your repair needs or check exchange availability.

Contact Us Today