EHR-B Control Unit Agricultural Machine Lifter New Holland T
- DiPa Code:
- CTRLEHRB001R
- OEM Code:
- 84159263
- Brand:
- BOSCH
- Cod.Cross:
- Condition:
- Remanufactured
Details
The EHR-B control unit OE 87654386 is an original CNH electronic unit for New Holland, Case IH and Steyr tractors. Manufactured by Bosch Rexroth, it manages the electronic lift (Electronic Draft Control) and the vehicle's electrohydraulic functions. It operates at 12 V, controlling valves and sensors to regulate position, draft and implement depth with precise and safe movements. Integrated with transmission and PTO, it ensures reliability, comfort and productivity.
Typical Errors and Defects
Typical faults:
Total absence of lifter movement
Irregular or jerky movements of the lifter
Difficulty maintaining the set height or effort (DRAFT)
Indicator lights illuminated on the instrument panel
Applications
NEW HOLLAND
NEW HOLLAND T4 (PowerStar)
| Model | Year of Production | Displacement | KW | HP | Cylinders | Fuel Type | Engine Code |
|---|---|---|---|---|---|---|---|
| T4 (PowerStar) | 2011-06-01 - | 3200 cc | 41 KW | 56 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3200 cc | 55 KW | 75 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3400 cc | 55 KW | 75 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3400 cc | 73 KW | 99 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3400 cc | 84 KW | 114 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3200 cc | 48 KW | 65 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3200 cc | 57 KW | 78 HP | Cylinders | ||
| T4 (PowerStar) | 2011-06-01 - | 3387 cc | 71 KW | 97 HP | Cylinders |
Techinical Info
The control unit with OE code 87654386 is an electronic CNH unit used on New Holland, Case IH and Steyr tractors for controlling the electronic lift and some of the vehicle's electrohydraulic functions. It is an EHR-B/EDC (Elektronische Hubwerksregelung/ Electronic Draft Control) device, i.e. electronic lift regulation, developed on a Bosch Rexroth basis, which automatically and proportionally manages the lift movements and integrates the control logic with the transmission and chassis.
The module is housed in an enclosure installed in a protected area of the tractor (chassis or technical compartment), connected via sealed multi-pin connectors to the vehicle wiring, the hydraulic valves and the dedicated sensors.
Technical specifications
- Electronics manufacturer: Bosch Rexroth (EHR-B family for mobile hydraulics).
- Supply voltage: 12 V DC, in line with the electrical system of the tractors concerned.
- Die-cast aluminum housing with mounting brackets and sealed multi-pin connectors.
- Internal architecture with microcontroller, analog and digital inputs, power drivers for driving proportional and on/off valves.
- Inputs from lift position sensors, draft/force sensors, hydraulic pressure sensors and user controls.
- Outputs to the rear lift solenoid valves and, in some cases, to related auxiliary hydraulic circuits.
DIPA can intervene to overhaul these components thanks to its experience and expertise.
Functions
- Electronic control of the lift (Electronic Draft Control) in position, draft (force) and mixed modes.
- Automatic management of working height and implement depth based on signals from draft and position sensors.
- Adjustment of lowering speed and lift travel limits via parameters set by the operator.
- Actuation of the lift electrohydraulic valves to achieve smooth, precise and repeatable movements.
- Management of external controls to the lift.
- Integration with transmission and PTO safety logic.
- Self-diagnosis of the EHR-B system with storage of internal errors and exchange of fault codes with official CNH diagnostics.
Model applications
- New Holland T series
- Case IH CS Pro series
- Case IH CVX series
- Steyr 9000/CVT series
Typical faults
- No lift movement at all
- Irregular or jerky lift movements
- Difficulty maintaining the set height or draft (DRAFT)
- Warning lights illuminated on the dashboard
Final conclusions
The EHR-B New Holland 87654386 control unit is a key component of the electrohydraulic system on mid-to-high-range New Holland, Case IH and Steyr tractors. It coordinates the electronic lift control and interacts with the transmission and chassis, ensuring work precision, comfort and safety.
DIPA has a wide range of spare parts dedicated to the Agri world: from vehicle-related parts to those for auxiliary equipment. It also offers reconditioned components with performance equivalent to new, enabling savings on replacement while contributing to environmental protection through the circular economy. If the spare part you need is not available, don’t worry: DIPA can overhaul your part on demand, restoring full functionality and safety in a short time.