| Specification Category | Details |
|---|---|
| COGENG Part Number | PS-KOB-003P1 |
| Replaces OEM Number | Kobelco YN52S00003P1 |
| Product Type | Hydraulic Pressure Sensor |
| Compatible Brands | Kobelco |
| Compatible Models | SK200-5, SK200-6, SK200LC-5 |
| Application | Hydraulic System Pressure Monitoring |
| Electrical Connection | Standard OEM multi-pin connector |
| Body Material | High-Strength Steel/Stainless Steel |
| Seal Material | High-Grade Nitrile (NBR) or equivalent |
| Pressure Rating | Designed to meet OEM specifications for SK200 series hydraulic systems |
| Output Signal | Compatible with Kobelco control system (voltage/current output) |
| Quality Standard | ISO 9001:2015 |
| NO | Number | Name | Qty |
| A1 | ZS28C06025 | SCREW M06x1.0x25mm | 8 |
| A2 | ZW16K0600 | WASHER ID 06xOD 11.5xTh1.6mm | 8 |
| A4 | ZH42X06000 | ELB⁰W45°-[Incls.O-Ring 237-6006 | 5 |
| A5 | YN68H01045P1 | CLAMP | 2 |
| A6 | YN68H01001D1 | HOSE PF 3/8,2050mm Long [80-45/64 in].Red | 1 |
| A7 | YN68H01001D3 | HOSE PF 3/8.2050mm Long [80-45/64 in].Greer | 1 |
| AB | YN68H01001D2 | HOSE PF 3/8.2050mm Long [80-45/64 in].Blue | 1 |
| A9 | YN68H⁰ 1001D4 | HOSE PF 3/8.2050mm Long [80-45/64 in],Gray | 1 |
| A10 | YW68H01010D1 | HOSE PF 3/8.2150mm Long [84-41/94 in].Red | 1 |
| A11 | YW68H01010D3 | HOSE PF 3/8.2150mm Long [84-41/94 in].Green | 1 |
| A12 | YW68H01010D2 | HOSE PF 3/8,2150mm Long (84-41/94 in),Blue | 1 |
| A13 | YW68H01010D4 | HOSE PF 3/8,2150mm Long [84-41/94 in],Gray | 1 |
| A14 | 2444R1119D220 | FLEXIBLE HOSE [2200] | 1 |
| A15 | 2444R1119D100 | HOSE 3/8"PF.1000mm Long [39-3/8 in] | 2 |
| A16 | 2420R349D100 | HOSE 1000mm Long (39-3/8 in) | 2 |
| A17 | YN68H01035P | CLAMP | 2 |
| A18 | 2432Z290D4 | Wire Ties…365mm Long | 1 |
| A19 | YN68H01041D1 | HOSE(500) | 2 |
| A20 | ZS18C08060 | SCREW M08x1.25x60mm | 4 |
| A21 | 2W16X08000 | WASHER ID 08x0D 17xTh1.6mm | 4 |
| A22 | HH45X04004G2 | ELBOW45° ·1/4"PF [Incls.0-RingZD12P01100 | 1 |
| A23 | ZH22X06000 | HYD CONNECTOR [Incls.O-Ring ZD12P01400 | 6 |
| A24 | HH25X04004G1 | HYD CONNECTOR (WITH FILTER) | 1 |
| A25 | 2432Z290 | CLIP Wire Ties --185mm Long | 1 |
| A27 | HH55Q06006G1 | TEE 3/8"PF(Incls.O-Ring ZD12P01400) | 1 |
| A28 | ZH32X04006 | ELB0W90°-1/4"x3/8"PF[Incls.0-Ring 237-6006 Altenate ZD12P01400 | 1 |
| YN64H00028F1 | CONTROL LINES BLOCK | AR | |
| B1 | 2420R537D110 | HOSE ASSY.(1100 | 2 |
| B2 | 2420R537D100 | HOSE 1000.00 mm | 2 |
| B3 | 2420R537D095 | HOSE 950mm Long [37-25/64 in] | 1 |
| B4 | 2420R537D120 | HOSE ASSY.1200mm Long [47-1/4 in | 2 |
| B5 | ZH22X06000 | HYD CONNECTOR Incls.O-Ring ZD12P01400 | 15 |
| B6 | YN64H01051P1 | BLOCK ASSY | 1 |
| B7 | YN52S00003P1 | PRESSURE SWITCH (L.P.) | 6 |
| B7-2 | ZD11P01100 | 0-RING [PI1A | 1 |
| B8 | YNOGHO1006P7 | CONNECTION | 1 |
| B9 | ZS18C10025 | SCREWM10x1.50x25mm | 2 |
| B10 | ZW16H10000 | WASHER ID 11xOD 24xTh 3.2mm | 4 |
| B11 | 2432R225D14 | CLIP Clamp,Single-ID 46x84mm Long | 1 |
| B12 | ZN18C10008 | NUT M10x1.50mn | 1 |
| B13 | ZS18C10060 | SCREWM10x1.50x60mm | 1 |
| B15 | 2420R537D09( | FLEXIBLE HUSE 9UUmm Long [35-?716 im | 1 |
| B18 | YN21V00005F1 | VALVE Check.[Incls.0-Ring ZD12P01400 | 1 |
| YNO6H00011F | CONTROL LINES,MAIN | AR | |
| C1 | 2444Z2359 | TEE 3/8"PT [Incls.0-Ring ZD12P01400] | 1 |
| C2 | ZH32X04000 | HYD CONNECTOR EIbow,90°-PF 1/4.[Incls.0-Ring 237-6004] | 3 |
| C3 | 2444R1120D030 | HOSE 300mm Long (11-13/16 in) | 1 |
| C4 | YN52S00003P1 | PRESSURE SWITCH [L.P. | 1 |
| C5 | 2420R349D030 | HOSE 300.00 mm | 1 |
| C6 | 2444T2524 | HYD CONNECTOR 1/4"PFx50mm Long [Incls.0-Ring ZD12P01100] | 1 |
| C7 | ZH32X06000 | HYD CONNECTOR EIbow,90°--[Incls.0-Ring ZD12P01400]Alternate 0-Ring 237-6006 | 9 |
| C8 | ZH32X04006 | ELBOW90°-1/4'x3/8"PF [Incls.0-Ring 237-6006 Altenate ZD12P01400 | 8 |
| C9 | 2444R1120D040 | HOSE 400mm Long (15-3/4 in) | 1 |
| C10 | 244423711 | HYD CONNECTOR [Incls.0-RingZD12P01400 | 1 |
| C11 | 2444Z2891 | HYD CONNECTOR (Incls.O-Ring ZD12P01400 | 2 |
| C12 | 2444Z233E | HYD CONNECTOR Tee·1/4"x3/8"x3/8"PF [Incls.0-Ring ZD12P01100] | 1 |
| C13 | ZH22X0600C | HYD CONNECTOR (Incls.O-Ring ZD12P01400 | 5 |
| C15 | YN06H01006P1 | CONNECTION | 1 |
| C16 | HH55Q06006G1 | TEE 3/8"PF [Incls.0-Ring ZD12P01400 | 2 |
| C17 | ZH22X04006 | HYD CONNECTOR [Incls.O-Ring 237-6006] | 2 |
| C18 | YN64H01048P1 | TEE [Incls.0-Ring ZD12P01400] | 1 |
| C21 | 2444R1119D070 | HOSE 700mm Long [27-1/2 in] | 1 |
| C22 | 2444R1119D080 | FLEXIBLE HOSE (800 | 1 |
| C29 | 2420R349D085 | HOSE 850.00 mm,850mm Long [33-29/64 in] | 2 |
| C31 | YN06H01017P1 | HYD CONNECTOR 3/8"PF-3/8"PFx35mm Long [Incls.0-Rings ZD12P01400] | 2 |
| C32 | 2444Z3943 | ELEC CONNECTOR 3/8"PF-3/8'PFx 35mm Long [Incls.0-Ring ZD12P01400] | 1 |
| C34 | PY68H01001P | PROTECTOR TUBE | 1 |
SYSTEM DEPRESSURIZATION: Completely lower all attachments to the ground. Turn off the engine and slowly operate all hydraulic control levers through their full range to release residual system pressure.
POWER DISCONNECTION: Always disconnect the negative (-) battery terminal before beginning work to prevent electrical shorts and ensure safety.
CLEANLINESS: Thoroughly clean the area around the sensor port and connection before disassembly to prevent contamination of the hydraulic system.
Q: What Kobelco models use the YN52S00003P1 hydraulic pressure sensor?
A: The COGENG YN52S00003P1 hydraulic pressure sensor is a direct OEM replacement designed for select Kobelco excavator models where this part number is specified. This sensor is typically used in the hydraulic system to monitor 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 Kobelco 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 and fuel efficiency.
Q: How does the hydraulic pressure sensor affect excavator operation?
A: The YN52S00003P1 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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