- EN
| Parameter | Specification |
|---|---|
| Product Name | Pressure Sensor |
| COGENG Part Number | 4332040 |
| OEM Equivalent | Hitachi 4332040, John Deere 4332040 |
| Product Type | Hydraulic Pressure Sensor |
| Sensor Type | Piezoresistive pressure transducer |
| Output Type | 4-20 mA or 0.5-4.5V (application dependent) |
| Application | Hydraulic system pressure monitoring |
| Compatible Models | Hitachi EX120-5, EX200-3, EX200-5, ZAX200; John Deere equivalents |
| Material | Iron + Rubber (seals: NBR / FKM) |
| Packing | PP bag inside, carton box outside |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Supply Capacity | 500 PCS |
| Brand | Part Number |
|---|---|
| COGENG | 4332040 |
| Hitachi | 4332040 |
| John Deere | 4332040 |
| Interchange | 4332041, 4332042, 4332043, 4332044, 4452700 |
| Parameter | Specification |
|---|---|
| Supply Voltage | 8-36V DC (typically 24V system) |
| Output Signal | 4-20 mA (current loop) or 0.5-4.5V analog |
| Current Draw | ≤ 25 mA |
| Response Time | < 5 ms |
| Insulation Resistance | ≥100MΩ @ 500V DC |
| Reverse Polarity Protection | Yes |
| Overvoltage Protection | Yes |
| Parameter | Specification |
|---|---|
| Pressure Range | 0 - 350 bar (0 - 5,075 psi) typical |
| Measurement Type | Gauge pressure (relative to atmosphere) |
| Accuracy | ±1.0% to ±2.0% of full scale |
| Overpressure Limit | 525 bar (7,600 psi) |
| Burst Pressure | 875 bar (12,700 psi) |
| Compensated Temperature | -40°C to +105°C |
| Parameter | Specification |
|---|---|
| Connector Type | 3-pin Deutsch DT / AMP |
| Mounting Thread | 7/16-20 UNF or M12 × 1.5 (OEM spec) |
| Hex Size | 19 mm (3/4") or 22 mm (7/8") |
| Housing Material | Stainless steel / Zinc-nickel plated steel |
| Diaphragm Material | 17-4PH stainless steel |
| Seal Material | NBR / FKM (Viton) |
| Weight | 0.10 - 0.15 kg (0.22 - 0.33 lbs) |
| Overall Length | 55-65 mm |
| Pin | Function | Signal Type | Wire Color (Typical) |
|---|---|---|---|
| Pin 1 | Sensor Supply (+) | 24V DC | Red |
| Pin 2 | Sensor Signal | 4-20 mA or 0.5-4.5V | Yellow/White |
| Pin 3 | Sensor Ground (-) | 0V | Black |
| Pressure (bar) | Pressure (psi) | Output (mA) | Condition |
|---|---|---|---|
| 0 | 0 | 4.0 ±0.1 | No pressure |
| 87.5 | 1,269 | 8.0 ±0.1 | Low pressure |
| 175 | 2,538 | 12.0 ±0.1 | Medium pressure |
| 262.5 | 3,806 | 16.0 ±0.1 | High pressure |
| 350 | 5,075 | 20.0 ±0.1 | Maximum pressure |
| Pressure (bar) | Pressure (psi) | Output (V) | Condition |
|---|---|---|---|
| 0 | 0 | 0.5 ±0.1 | No pressure |
| 87.5 | 1,269 | 1.5 ±0.1 | Low pressure |
| 175 | 2,538 | 2.5 ±0.1 | Medium pressure |
| 262.5 | 3,806 | 3.5 ±0.1 | High pressure |
| 350 | 5,075 | 4.5 ±0.1 | Maximum pressure |
| Parameter | Rating |
|---|---|
| Operating Temperature | -40°C to +105°C (-40°F to +221°F) |
| Storage Temperature | -40°C to +125°C (-40°F to +257°F) |
| Ingress Protection | IP67 / IP69K (connector mated) |
| Vibration Resistance | 20G @ 50-2000Hz |
| Shock Resistance | 100G |
| Media Compatibility | Hydraulic oil, diesel fuel |
| Corrosion Protection | 500+ hours salt spray |
| Model | Series | Application |
|---|---|---|
| EX120-5 | Dash 5 | Hydraulic / implement pressure |
| EX120LC-5 | Dash 5 | Hydraulic / implement pressure |
| Model | Series | Application |
|---|---|---|
| EX200-3 | Dash 3 | Hydraulic / implement pressure |
| EX200-5 | Dash 5 | Hydraulic / implement pressure |
| EX200LC-3 | Dash 3 | Hydraulic / implement pressure |
| EX200LC-5 | Dash 5 | Hydraulic / implement pressure |
| Model | Series | Application |
|---|---|---|
| ZAX200 | Original | Hydraulic / implement pressure |
| ZAX200LC | Original | Hydraulic / implement pressure |
| Model | Series | Application |
|---|---|---|
| 200D | D-Series | Hydraulic / implement pressure |
| 210D | D-Series | Hydraulic / implement pressure |
| 200G | G-Series | Hydraulic / implement pressure |
| 210G | G-Series | Hydraulic / implement pressure |
Note: Verify compatibility with your equipment model, serial number, and ECU configuration before ordering. Contact COGENG with your machine details for exact application verification.
Q: What Hitachi and John Deere models use the 4332040 pressure sensor?
A: The COGENG 4332040 pressure sensor is a direct OEM replacement designed for Hitachi excavator models including EX120-5, EX200-3, EX200-5, and ZAX200 series, as well as equivalent John Deere excavator models where this sensor part number is specified. This sensor is typically used in the hydraulic system for monitoring pump discharge pressure, pilot pressure, or other critical hydraulic circuits. Always verify this part number against your machine's parts manual or the original sensor's identification markings to confirm exact compatibility before ordering.
Q: What are the symptoms of a failing hydraulic pressure sensor on a Hitachi or John Deere excavator?
A: Common symptoms include erratic or incorrect hydraulic pressure readings on the monitor panel, active diagnostic trouble codes related to the pressure sensor circuit, degraded hydraulic performance, the machine entering a failsafe or limp mode, intermittent hydraulic function response, or the engine control system failing to properly match engine speed to hydraulic load demand. A faulty pressure sensor can significantly impact overall machine performance, digging force, and fuel efficiency.
Q: How does the hydraulic pressure sensor affect excavator operation?
A: The 4332040 sensor provides real-time hydraulic pressure data to the machine's electronic control system. This information is used to manage pump displacement, engine speed matching, and implement response. Accurate pressure sensing is essential for smooth hydraulic operation, preventing system overloads, and optimizing fuel consumption.
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