Hydraulic valves
4WE, 4WS, DBEM, 4WRPH, and 0811 series across the combined Bosch Rexroth hydraulic catalog. Spool service, pilot stage rebuild, coil work, and bench testing.
NC Servo Technology - Westland, Michigan
734-326-6666
Independent Repair Shop. Not Bosch Rexroth.
Third-Party Repair of Bosch Rexroth Valves & Drives
Independent third-party repair across the combined Bosch Rexroth range that came out of the 2001 merger: hydraulic valves on one side, IndraDrive servo drives and legacy Indramat hardware on the other. Backed by a 19,000+ unit in-house inventory we pull aftermarket and donor parts from. NC Servo is not affiliated with Bosch Rexroth. Working on this kind of hardware since 1975.
Hydraulics and electronics
Bosch Rexroth valves and IndraDrive units serviced under one roof.
Heritage to current production
Older Mannesmann Rexroth and Bosch hardware alongside new Bosch Rexroth units.
One-year warranty
Standard on parts and workmanship for Bosch Rexroth repairs and rebuilt units.
2001 Merger
A wide catalog from one merger
Bosch Rexroth came out of the 2001 acquisition where Bosch bought Rexroth (formerly Mannesmann Rexroth) and folded it into the company. Indramat, Rexroth's drive division, became Bosch Rexroth's electric-drive arm. Today Bosch Rexroth covers hydraulics, electrics, motion control, and the IndraDrive family that pulls them together. We service the whole combined range.
- Labeled "Bosch Rexroth" with current production part numbers: send it our way as-is.
- Labeled "Mannesmann Rexroth" or older Rexroth-only hardware: same shop, just legacy badging.
- IndraDrive servo drive of any vintage: handled on the electronics bench.
- Older Indramat drives like DDS, DKC, DKS: still serviced from inventory.
Service Coverage
What NC Servo handles on the Bosch Rexroth side
Bosch Rexroth's range is wide: hydraulic valves on the heritage Rexroth side, drive electronics on the heritage Indramat side, and IndraDrive products that pull them together. The shop opens each unit, finds what failed, and rebuilds it at the component level.
IndraDrive servo drives
HCS, HMV, HMS, HCQ IndraDrive families. Power-stage diagnostics, gate-driver replacement, control-board work, and feedback-interface checks.
Legacy Indramat lines
ECODRIVE, DDS, DKC, and DKS drive hardware from before IndraDrive. Donor parts pulled from inventory keep older lines in service.
Combined Range
Bosch Rexroth families on the bench
We are a small repair shop, not a Bosch Rexroth distributor. The families below are the ones that come through the door often enough to be familiar. If your unit is not listed, send the part number anyway.
4WE / 4WS / DBEM
Heritage Rexroth hydraulic valves. Proportional directional, servo, and pressure-control families still in service across industrial machinery.
0811 series
Heritage Bosch hydraulic valves. Proportional and directional units used heavily on mobile and industrial equipment.
IndraDrive HCS / HMV / HMS
Current Bosch Rexroth servo drives covering single-axis, multi-axis, and supply units.
Indramat ECODRIVE, DDS
Legacy drive families that predate IndraDrive. Still common on production lines from the 1990s and early 2000s.
Common Faults
What goes wrong on Bosch Rexroth hardware
Bosch Rexroth splits cleanly into two failure profiles: hydraulic-side issues on the valve families and electronic-side issues on the IndraDrive and Indramat drive lines. Both come through the shop.
| Hydraulic valve internals | Spool wear, contamination scoring, pilot stage faults, internal leakage, or sluggish step response on 4WE, 4WS, or 0811 valves. |
|---|---|
| IndraDrive electrical | Power-stage damage, gate-driver failure, DC-bus faults, or feedback-interface communication errors on IndraDrive HCS, HMV, HMS units. |
| Legacy Indramat drives | ECODRIVE, DDS, DKC, DKS hardware faults: capacitor aging, control-board failures, resolver issues, or relay faults. |
| Physical condition | Heat damage, contamination on hydraulic units, corroded connectors, or evidence of prior repair attempts on either side of the catalog. |
Repair Path
From part number to ship-back
Most Bosch Rexroth jobs follow the same four steps. Lead time varies because some repairs need parts pulled off a donor, so we only commit to timing once a tech has the unit in front of them.
Get in touch
Phone or email with the Bosch Rexroth part number and a quick note on the symptom. The shop picks up from there.
Bench review
Once the unit arrives, a tech opens it, inspects internals or boards, and runs it on the appropriate stand to confirm the fault.
Cost & approval
We call back with the cost and a rough turnaround. Nothing happens without your sign-off.
Repair, test, ship
Failed components are replaced from inventory or off donor units, the repair is verified on the bench, and the unit ships back.
Bench Verification
Hydraulic and electrical checks before ship
Bosch Rexroth valves go on the Hagen-Busch hydraulic stand for current units and the legacy stands for older 4WE and 4WS hardware. IndraDrive and Indramat drives get checked on the electronics bench under load with the appropriate communication interface (CANbus, PROFIBUS, EtherCAT, sercos).
- Hagen-Busch hydraulic stand for current Bosch Rexroth valves and CANbus-capable hardware.
- Older legacy stands kept on hand for heritage Rexroth and Bosch valve series.
- Drive bench supports IndraDrive HCS / HMV / HMS, plus legacy Indramat ECODRIVE / DDS.
- Repair backed by a 1-year warranty on parts and workmanship.
Inventory & Parts Pool
A 19,000+ unit pool spanning Bosch and Rexroth heritage
NC Servo's in-house inventory holds over 19,000 hydraulic valves and drives accumulated since 1975. That pool includes parts from both heritage sides of the Bosch Rexroth combined catalog plus newer IndraDrive and Indramat hardware.
- Aftermarket and donor parts for 4WE, 4WS, DBEM, 0811, IndraDrive, ECODRIVE, and DDS families.
- If we have a rebuilt match for your part number, trade in your old unit for a discount on the rebuilt.
- No match on the shelf? We can suggest a comparable Bosch Rexroth or cross-brand option, or repair yours.
- Rebuilt units carry the same 1-year warranty as a fresh repair.
Find Your Unit
Pick the closest match for what is on your nameplate
Bosch Rexroth's catalog covers a lot of ground. If your nameplate is more specific than just "Bosch Rexroth", these pages cover the heritage lines in more detail.
Bosch hydraulic valves
0811 series and other Bosch-labeled proportional and directional valves on mobile and industrial machinery.
Rexroth hydraulic valves
4WE, 4WS, DBEM, 4WRPH series. Older Mannesmann Rexroth hardware shows up here too.
Indramat servo drives
ECODRIVE, DDS, DKC, DKS legacy lines and current IndraDrive families on the electric-drive side.
Valve repair hub
The full range of servo and proportional valve repair NC Servo handles.
Servo drive repair hub
Drive and amplifier repair, including IndraDrive and other brands the shop sees regularly.
Repair vs replace
When component-level repair makes sense versus buying new or rebuilt.
Bosch Rexroth unit down?
Give us a call with the part number, a photo of the nameplate, or a fault code from the IndraDrive display. We will check the shelf, and if we have a rebuilt match you can swap your old one for a discount. If we do not, we can suggest a comparable unit or repair the one you have.
FAQ
Common questions about Bosch Rexroth repair
A few things customers ask before sending a unit in. Anything not covered, give us a call at 734-326-6666.
Is NC Servo affiliated with Bosch Rexroth?
No. NC Servo Technology is an independent, third-party repair facility and is not affiliated with, authorized by, or endorsed by Bosch Rexroth AG, Mannesmann Rexroth, or Robert Bosch GmbH. All Bosch Rexroth trademarks are the property of their respective owners.
Do you repair IndraDrive servo drives?
Yes. Component-level repair on IndraDrive families (HCS, HMV, HMS, HCQ) and legacy Indramat drive lines (ECODRIVE, DDS, DKC, DKS). Power-stage damage, gate-driver failure, control-board faults, and feedback-interface work are typical repairs.
Can you recover programs or parameters from a failed Bosch Rexroth drive?
Most failures are hardware, and the unit comes back working with its program intact. Corrupted programs are rare; if one is already corrupted before the unit reaches us, that's the one thing we can't recover.
How long does a Bosch Rexroth repair take?
It varies. NC Servo is a small independent shop, and lead time depends on the unit, what is wrong with it, and whether parts have to come off a donor unit. Give us a call once the unit ships in, and we can give a current estimate after a tech has looked at it.
What happens if the valve or drive is beyond economic repair?
If the unit is not fixable, we will let you know and help source a replacement: a rebuilt match if we have one on the shelf, or a comparable Bosch Rexroth or cross-brand alternative.
What is the warranty on a Bosch Rexroth repair?
One year on parts and workmanship for repairs and rebuilt units. Standard exclusions apply for contamination on valves and for power surges, environmental damage, and software-driven faults on drives.
Bosch Rexroth Products We Service
15 models available
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-403-577
Every minute your Bosch Rexroth 0811-403-577 is down costs your operation. We offer expedited repair...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-039
When your Bosch Rexroth 0811-404-039 valve fails, production stops. subject to availability. NC Servo Tech...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-142
Stop searching for a Bosch Rexroth 0811-404-142 replacement. Repair often restores the valve to working...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-152
Expert Reconditioning for your Bosch Rexroth 0811-404-152. We offer cost-effective solutions. Inquire today!
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-251
When your Bosch Rexroth 0811-404-251 valve fails, production stops. limited stock. NC Servo Tech offers...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-315
For Bosch Rexroth 0811-404-315 valve repair, NC Servo Tech offers teardown, rebuild, and testing, backed...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-481
Don't let a faulty Bosch Rexroth 0811-404-481 valve slow you down. Our technicians specialize in...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-603
When your Bosch Rexroth 0811-404-603 valve fails, production stops. NC Servo Tech provides repair services...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-637
Don't let a faulty Bosch Rexroth 0811-404-637 valve slow you down. Our technicians specialize in...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 0811-404-801
Trust your Bosch Rexroth 0811-404-801 repair to a shop that understands servo and proportional valve...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 1-815-109-208
When your Bosch Rexroth 1-815-109-208 valve fails, production stops. subject to availability. NC Servo Tech...
BOSCH REXROTH
BOSCH REXROTH
BOSCH REXROTH 4WRPEH6C3B04L-20/G24K0/A1M-816
Every minute your Bosch Rexroth 4WRPEH6C3B04L-20/G24K0/A1M-816 is down costs your operation. We offer expedited repair...
All Bosch Rexroth Products
- BOSCH REXROTH 0811-403-577 - Model: 0811-403-577
- BOSCH REXROTH 0811-404-039 - Model: 0811-404-039
- BOSCH REXROTH 0811-404-142 - Model: 0811-404-142
- BOSCH REXROTH 0811-404-152 - Model: 0811-404-152
- BOSCH REXROTH 0811-404-251 - Model: 0811-404-251
- BOSCH REXROTH 0811-404-315 - Model: 0811-404-315
- BOSCH REXROTH 0811-404-481 - Model: 0811-404-481
- BOSCH REXROTH 0811-404-603 - Model: 0811-404-603
- BOSCH REXROTH 0811-404-637 - Model: 0811-404-637
- BOSCH REXROTH 0811-404-801 - Model: 0811-404-801
- BOSCH REXROTH 1-815-109-208 - Model: 1-815-109-208
- BOSCH REXROTH 4WRPEH6C3B04L-20/G24K0/A1M-816 - Model: 4WRPEH6C3B04L-20/G24K0/A1M-816
- BOSCH REXROTH FESX16CA-10/125LZ4M - Model: FESX16CA-10/125LZ4M
- BOSCH REXROTH 0811-004-102 - Model: 0811-004-102
- BOSCH REXROTH 0811-404-307 - Model: 0811-404-307
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