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Decompose pictures
| Reference Number | Part Name | Description & Function |
|---|---|---|
| 1 | Sensor Body (Iron Housing) | High-strength iron/steel main body with precision-machined threaded port. Provides robust protection and secure mounting into hydraulic or engine manifolds. |
| 2 | Pressure Sensing Element | Hermetically sealed piezoresistive or thin-film strain gauge transducer. Converts hydraulic, engine oil, or transmission pressure into a precise proportional electrical signal. |
| 3 | Rubber O-Ring / Sealing Gasket | Oil and temperature-resistant Viton/Nitrile rubber seal integrated at the mounting face. Ensures a leak-proof interface under high vibration and pressure conditions. |
| 4 | Electrical Connector Socket | Industry-standard sealed multi-pin connector interface (typically 3-pin). Accepts the JCB wiring harness plug for signal, ground, and 5V reference voltage. |
| 5 | Terminal Pins | Gold or tin-plated brass conductor pins inside the socket. Provide corrosion-resistant, low-resistance electrical continuity for accurate signal transmission. |
| 6 | Internal Signal Conditioning Circuit | Miniature encapsulated electronic PCB. Amplifies, temperature-compensates, and linearizes the raw transducer output to a standard 0.5–4.5V ratiometric signal. |
| 7 | Mounting Thread & Hex Shoulder | Precision-machined threaded section with hex shoulder. Allows secure installation using a standard deep socket or wrench. Thread size matches OEM specification. |
| 8 | Connector Locking Mechanism | Integrated locking tab, plastic clip, or metal bail retainer. Ensures the mating harness plug remains firmly engaged under severe machine vibration and shock. |
Parts list
| Item | OEM Reference No. | COGENG Part No. | Description | Qty |
|---|---|---|---|---|
| 1 | 701/80402 | CG-701-80402 | JCB Pressure Sensor — Complete Assembly (Iron Body + Rubber Seal) | 1 |
| 2 | 320/06194 | CG-320-06194 | JCB Pressure Sensor — Alternative OEM Cross-Reference | 1 |
| 3 | 335/C6732 | CG-335-C6732 | JCB Pressure Sensor — Alternative OEM Cross-Reference | 1 |
| 4 | 332-C0937 | CG-332-C0937 | JCB Pressure Sensor — Alternative OEM Cross-Reference | 1 |
| 5 | 335/C4128 | CG-335-C4128 | JCB Pressure Sensor — Alternative OEM Cross-Reference (3CX / 4CX) | 1 |
| 6 | — | CG-SEAL-JCB-PS | Universal Replacement Rubber O-Ring / Sealing Gasket Kit for JCB Sensors | 1 Set |
| 7 | — | CG-CONN-JCB-3P | Replacement 3-Pin Wiring Harness Connector Plug with Terminals & Seals | 1 (Optional) |
| Brand | Part Number |
|---|---|
| COGENG | 335/C4128 |
| JCB | 335/C4128 |
| Interchange | 335/C4129, 335/C4130, 335/C6732, 320/06194 |
| 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 for hydraulic |
| Brake Pressure Range | 0 - 200 bar (0 - 2,900 psi) for brake circuits |
| Measurement Type | Gauge pressure |
| 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) |
| 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 |
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