About This Unit

We handle a wide range of MOOG D634E359B units. Each one receives inspection, internal cleaning, and reconditioning before it ships.

About Our Shop

We stock common wear parts in-house, so most rebuilds don’t require outside sourcing. Less waiting, faster turnaround.

Frequently Asked Questions

Yes, rush service is available for an additional fee. Let us know your deadline when you submit your request.

Yes. We diagnose first, then provide a repair recommendation with our findings. No work begins without your approval.

We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.

Not required, but removing excess oil or loose debris before packing helps keep things clean in transit.

Yes. If the unit can’t be repaired, we contact you with options before doing anything further.

Disassembly and Rebuild Procedure

We disassemble every valve, inspect it inside and out, and clean all moving parts. Components that fail inspection are swapped out before the valve is rebuilt and tested.

  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Teardown: Every valve is disassembled for internal inspection.

Diagnostic Testing

NC Servo Tech operates thirteen in-house test stands, including setups for proportional and servo valves. Every valve goes through performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our performance testing verifies spec-level operation.

Where the MOOG D634E359B Is Used

Our trusted repair services for the MOOG D634E359B are trusted across various sectors including Automotive, Defense, and Paper & Pulp. We understand the unique demands of valves in these environments.

Maintenance Tips

  • Keep a spare MOOG D634E359B on hand to minimize downtime during unplanned failures.
  • Check valve alignment carefully to prevent undue stress on internal components.
  • Document all maintenance activities to track performance trends over time.

Start Your MOOG D634E359B Reconditioning Process

Request pricing, availability, and turnaround for your MOOG D634E359B. NC Servo Tech provides warrantied repair with a 1-year warranty. Contact us to schedule your repair.

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NC Servo Tech is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by MOOG or any original equipment manufacturer (OEM), nor do we claim to be a MOOG service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.