| Parameter | Details |
|---|---|
| Product Name | Engine Oil Pressure Sensor |
| Part Number | YN52S00023P1 |
| Compatible Brands | Kobelco |
| Compatible Excavator Models | SK210-6E, SK230-6E, SK250-6E |
| Compatible Engine | Mitsubishi 6D34 / 6D16 / 6D24 (depending on model) |
| Material | Iron + Rubber + Brass/Copper |
| Packing | PP bag inside, carton box outside |
| Payment Terms | Western Union, L/C, T/T, MoneyGram, D/A, D/P |
| MOQ | Acceptable trial order (1 piece accepted) |
| Shipping Mode | By air, by sea, by express (FedEx, UPS, DHL, TNT, etc.) |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Stock Status | ✅ In Stock |
| Supply Capacity | 500 PCS |
The COGENG YN52S00023P1 Engine Oil Pressure Sensor is a high-precision, direct OEM replacement sensor specifically designed for Kobelco SK210-6E, SK230-6E, and SK250-6E hydraulic excavators. These popular medium-to-large excavators are widely used in construction, mining, and infrastructure projects worldwide.
This critical engine component continuously monitors engine oil pressure and transmits real-time signals to the ECU (Engine Control Unit) and/or dashboard gauge, ensuring proper engine lubrication and protecting your valuable equipment from costly damage caused by low oil pressure. Proper oil pressure is essential for:
Lubricating moving parts – Crankshaft, camshaft, pistons, turbocharger
Cooling engine components – Oil carries heat away
Hydraulic lifters – Proper valve train operation
Turbocharger protection – Prevents bearing failure
Engine longevity – Prevents premature wear and seizure
Manufactured under ISO9001 certified processes, the COGENG YN52S00023P1 features a durable iron housing, premium rubber seals, and precision internal components to withstand the demanding environment of heavy equipment – constant vibration, temperature extremes (-40°C to +125°C), and exposure to engine oil, fuel, and debris. Each unit undergoes 100% testing for accuracy, sealing integrity, and response time.
Why Choose COGENG YN52S00023P1?
| Feature | Benefit |
|---|---|
| ✅ Direct OEM Replacement | Plug-and-play for Kobelco SK210-6E, SK230-6E, SK250-6E |
| ✅ High Accuracy | Reliable oil pressure readings for ECU/gauge |
| ✅ Durable Iron Construction | Withstands vibration, heat, and corrosion |
| ✅ Leak-Proof Design | Premium rubber O-ring pre-installed |
| ✅ Wide Temperature Range | -40°C to +125°C – all climate operation |
| ✅ Fast Response | <10 ms response time |
| ✅ In Stock | Ready to ship immediately |
| ✅ ISO9001 Certified | Consistent quality you can trust |
| Component Name | Quantity | Description |
|---|---|---|
| Engine Oil Pressure Sensor | 1 | Complete assembly, ready to install |
| Rubber O-ring / Sealing Ring | 1 | Pre-installed on threaded base |
| Protective Plastic Cap | 1 | For shipping protection only |
| Installation Quick Guide | 1 | Basic instructions |
This oil pressure sensor is specifically designed for the following Kobelco excavator models:
| Model | Series | Engine | Typical Year Range |
|---|---|---|---|
| Kobelco SK210-6E | Dash 6E | Mitsubishi 6D34 | 1998–2005 |
| Kobelco SK230-6E | Dash 6E | Mitsubishi 6D34 / 6D16 | 1999–2005 |
| Kobelco SK250-6E | Dash 6E | Mitsubishi 6D24 | 1999–2005 |
Additional compatible models (verify before purchase):
| Model | Compatibility Level | Notes |
|---|---|---|
| Kobelco SK200-6E | ⚠️ Similar | Check connector type – may use YN13E01336P1 harness |
| Kobelco SK210LC-6E | ✅ Compatible | Same as SK210-6E (long chassis) |
| Kobelco SK230LC-6E | ✅ Compatible | Same as SK230-6E (long chassis) |
| Kobelco SK250LC-6E | ✅ Compatible | Same as SK250-6E (long chassis) |
| Kobelco SK210-6 (non-E) | ❌ Not compatible | Mechanical injection – different sensor |
| Kobelco SK230-6 (non-E) | ❌ Not compatible | Mechanical injection – different sensor |
| Kobelco SK250-6 (non-E) | ❌ Not compatible | Mechanical injection – different sensor |
| Kobelco SK210-7 / SK230-7 | ❌ Not compatible | Newer generation – different electrical system |
Important: The "-6E" designation indicates Electronic engine control (common rail or electronic injection pump). This sensor is for -6E models only. The non-E models (mechanical injection) use a different sensor or switch.
| Parameter | SK210-6E | SK230-6E | SK250-6E |
|---|---|---|---|
| Engine model | Mitsubishi 6D34 | Mitsubishi 6D34 / 6D16 | Mitsubishi 6D24 |
| Engine type | 6-cylinder diesel | 6-cylinder diesel | 6-cylinder diesel |
| Displacement | 6.0L | 6.0L / 6.9L | 7.5L |
| Net horsepower | 158 HP (118 kW) | 168 HP (125 kW) | 188 HP (140 kW) |
| Operating weight | 20,500 kg | 23,000 kg | 25,500 kg |
| Fuel system | Electronic injection | Electronic injection | Electronic injection |
| ECU type | Kobelco engine ECU | Kobelco engine ECU | Kobelco engine ECU |
Normal Oil Pressure Ranges (6D34 / 6D16 / 6D24 Engines):
| Condition | Pressure (PSI) | Pressure (bar) | Warning threshold |
|---|---|---|---|
| Hot idle (700 RPM) | 15–25 | 1.0–1.7 | Below 10 PSI |
| Cold idle | 40–60 | 2.8–4.1 | N/A |
| Working RPM (1500–2000 RPM) | 40–70 | 2.8–4.8 | Below 25 PSI |
| High load / full RPM | 50–80 | 3.5–5.5 | Below 30 PSI |
| Brand | Part Number | Notes |
|---|---|---|
| COGENG | YN52S00023P1 | Direct replacement |
| Kobelco (OEM) | YN52S00023P1 | Original equipment |
| Kobelco (alternate) | YN52S00023P1A | Updated version (compatible) |
| Mitsubishi | 43230-10050 | Similar (verify) |
| Aftermarket | OP-9320 | May vary |
*Note: Always match your original sensor part number. The "P1" suffix indicates a specific revision for the -6E series.*
✅ Direct OEM replacement for:
Kobelco part number: YN52S00023P1
Also compatible with: YN52S00023P1A (updated version)
✅ Designed for:
Kobelco SK210-6E excavator
Kobelco SK230-6E excavator
Kobelco SK250-6E excavator
Also fits LC (long chassis) variants of above models
✅ Engine compatibility:
Mitsubishi 6D34 (6.0L, 6-cylinder)
Mitsubishi 6D16 (6.9L, 6-cylinder) – SK230-6E variant
Mitsubishi 6D24 (7.5L, 6-cylinder) – SK250-6E
✅ Electrical specifications:
Operating voltage: 5V DC (from ECU) or 12V/24V (gauge type)
Output signal: 0.5V – 4.5V analog (ECU type) or variable resistance (gauge type)
Connector: 2-pin or 3-pin (matches Kobelco OEM)
✅ Mechanical specifications:
Thread size: 1/8-27 NPT (most common) or M10x1
Hex size: 22mm or 24mm
Pressure range: 0–150 PSI (0–10 bar)
⚠️ Before purchasing, please verify:
| Check Item | Details |
|---|---|
| Model series | Confirm your machine is -6E (electronic) – NOT -6 (mechanical) |
| Part number | Match old sensor – YN52S00023P1 |
| Connector type | 2-pin or 3-pin (photo recommended) |
| Application | Engine oil pressure (engine block, near oil filter) |
| Output type | Analog voltage or variable resistance |
❌ NOT compatible with:
Kobelco SK210-6, SK230-6, SK250-6 (non-E / mechanical injection)
Kobelco SK210-7, SK230-7, SK250-7 (newer generation)
Kobelco SK200-6E (uses YN13E01336P1 harness – different connector)
Kobelco SK200-6 (mechanical)
Non-Kobelco engines (Cummins, Isuzu, Perkins, etc.)
Q1: What is the function of the YN52S00023P1 sensor on Kobelco excavators?
A: This is an engine oil pressure sensor. It continuously monitors oil pressure in the Mitsubishi 6D34/6D16/6D24 engine and sends real-time signals to the ECU and/or dashboard gauge. This allows the ECU to:
Trigger warning lights if pressure drops too low
Derate or shut down engine to prevent damage
Log fault codes for diagnostics
Display oil pressure to the operator
Q2: What are the symptoms of a failing oil pressure sensor on a Kobelco SK210-6E?
A: Common signs include:
Oil pressure warning light stays on or flashes (even with correct oil level)
Oil pressure gauge reads zero or maximum constantly
Intermittent warning light, especially when engine is hot
Engine derates or goes into "limp mode" (ECU protection)
Error codes related to oil pressure circuit
Engine knocking or ticking (actual low oil pressure not detected)
No oil pressure reading on display
Q3: Is this a genuine Kobelco OEM part?
A: No. This is a COGENG aftermarket replacement manufactured to meet or exceed OEM specifications. It is a direct replacement for Kobelco part number YN52S00023P1.
Q4: Will this sensor fit my Kobelco SK210-6E?
A: Yes – this sensor is specifically designed for the SK210-6E.
Q5: Will this sensor fit my Kobelco SK230-6E?
A: Yes – this sensor is specifically designed for the SK230-6E.
Q6: Will this sensor fit my Kobelco SK250-6E?
A: Yes – this sensor is specifically designed for the SK250-6E.
Q7: What is the difference between SK210-6E and SK210-6 (non-E)?
A: The "-6E" series has electronic engine control (ECU, sensors, common rail or electronic injection pump). The "-6" (non-E) series has mechanical injection (no ECU for engine control). This sensor is for -6E models only. The non-E models use a different pressure switch/sensor.
Q8: What is the pressure range of this sensor?
A: The sensor measures from 0–150 PSI (0–10 bar) , covering the full operating range of the Mitsubishi engines (normal operating pressure is 40–80 PSI at working RPM).
Q9: What is the output signal type?
A: This depends on your specific application:
ECU-controlled engines (common rail): 0.5V – 4.5V analog signal
Gauge-only applications: Variable resistance (typically 0–250 ohms)
Verify your application before ordering.
Q10: Is this sensor in stock for immediate shipping?
A: Yes – COGENG maintains stock of 500+ units. Orders ship within 24–48 hours.
Q11: What is the warranty?
A: COGENG provides a 6-month warranty against manufacturing defects.
Q12: How long does shipping take?
A:
Express (DHL/FedEx/UPS/TNT): 3–7 business days worldwide
Air freight: 7–12 days
Sea freight: 20–40 days
Q13: Do I need any special tools to install this sensor?
A: No. A standard 22mm or 24mm wrench is all you need.
Q14: Do I need to use thread sealant?
A: No – the rubber O-ring provides the oil seal. Never use PTFE tape – it can clog oil passages.
Q15: Can I install this sensor myself?
A: Yes, with basic mechanical skills (15–20 minutes). If uncomfortable, professional installation is recommended.
Q16: How do I place a trial order?
A: Contact your COGENG distributor directly. MOQ is 1 piece for trial orders – we welcome first-time buyers.
Q17: Will this sensor work on a Kobelco SK210LC-6E?
A: Yes – the LC (long chassis) variant uses the same engine and same sensor.
| Parameter | Value |
|---|---|
| Sensor Type | Piezoresistive / Thick-film ceramic |
| Pressure Range | 0 – 150 PSI (0 – 10 bar) |
| Maximum Overload | 200 PSI (13.8 bar) |
| Burst Pressure | 300 PSI (20.7 bar) |
| Output Signal (ECU type) | 0.5V – 4.5V analog (linear) |
| Output at 0 PSI | 0.5V (±0.1V) |
| Output at 150 PSI | 4.5V (±0.1V) |
| Output Signal (Gauge type) | 0–250 ohms variable resistance |
| Operating Voltage | 5V DC (ECU type) or 12V/24V (gauge type) |
| Current Consumption | <15 mA |
| Accuracy | ±2% full scale (typical) |
| Response Time | <10 ms |
| Operating Temperature | -40°C to +125°C |
| Storage Temperature | -50°C to +130°C |
| Temperature Compensation | 0°C to +100°C |
| Thread Size | 1/8-27 NPT (most common) or M10x1 |
| Hex Size | 22mm or 24mm |
| Housing Material | Zinc-plated iron |
| Diaphragm Material | Ceramic or Stainless steel |
| Seal Material | Nitrile rubber (NBR) or Viton/FKM |
| Connector Type | 2-pin or 3-pin (matches Kobelco OEM) |
| Protection Class | IP67 (waterproof when mated) |
| Vibration Resistance | 10g (10–500 Hz) |
| ISO Standard | ISO9001:2015 certified facility |
| Country of Origin | China (Guangdong) |
| HS Code | 90262090 |
| Weight | Approx. 85g |
| Condition | Pressure (PSI) | Pressure (bar) | Action |
|---|---|---|---|
| Hot idle (700 RPM) | 15–25 | 1.0–1.7 | Normal |
| Hot idle low warning | Below 10 | Below 0.7 | Check oil level, sensor |
| Cold idle | 40–60 | 2.8–4.1 | Normal (thick oil) |
| Working RPM (1500) | 40–70 | 2.8–4.8 | Normal |
| Working RPM low | Below 25 | Below 1.7 | Check engine |
| Full load / high RPM | 50–80 | 3.5–5.5 | Normal |
| Full load low | Below 30 | Below 2.1 | Check oil pump, bearings |
| High pressure warning | Above 100 | Above 6.9 | Check relief valve |
If your sensor reads outside these ranges, verify with a mechanical gauge before replacing the sensor.
| Symptom | Possible Cause | Solution |
|---|---|---|
| No oil pressure reading (0 PSI) | Bad sensor, disconnected wire, no power | Check connector, measure voltage |
| Gauge pegged at maximum | Shorted signal wire (gauge type) | Inspect wiring harness |
| Warning light stays on | Low oil pressure OR bad sensor | Check actual pressure with mechanical gauge |
| Intermittent reading | Loose connector, damaged wire | Inspect and clean connector |
| Oil leak at sensor | Worn O-ring, over-tightened | Replace O-ring, reinstall with correct torque |
| Error code (oil pressure circuit) | Sensor circuit fault | Test sensor output, replace if needed |
| Engine derates / limp mode | ECU detecting no oil pressure | Replace sensor |
| Pin | Function | Wire Color (Kobelco typical) | Voltage/Signal |
|---|---|---|---|
| 1 | Power (5V) | Red or Yellow | 5V DC |
| 2 | Ground | Black or Brown | 0V |
| 3 | Signal output | Green or White | 0.5-4.5V |
Wiring Guide (2-Pin – Gauge Type):
| Pin | Function | Wire Color (typical) |
|---|---|---|
| 1 | Signal (to gauge) | White/Blue |
| 2 | Ground | Black |
Note: Pin configurations may vary. Verify with your Kobelco wiring diagram or old sensor.
Testing the sensor (bench test – ECU type):
Apply 5V DC between Pin 1 (+) and Pin 2 (-)
Measure voltage between Pin 3 (signal) and Pin 2 (ground)
At 0 PSI (atmospheric): Should read ~0.5V
Apply pressure (with hand pump): Voltage should increase to ~4.5V at 150 PSI
| Order Option | Details |
|---|---|
| Minimum Order Quantity (MOQ) | 1 piece (trial order accepted) |
| Stock Status | ✅ 500+ pieces in stock |
| Lead Time | Ships within 24–48 hours |
| Payment Methods | Western Union, L/C, T/T, MoneyGram, D/A, D/P |
| Shipping Methods | FedEx, UPS, DHL, TNT, air freight, sea freight |
| Packaging | PP bag inside, carton box outside |
How to Order in 3 Simple Steps:
| Step | Action |
|---|---|
| 1️⃣ | Send inquiry with your Kobelco model (SK210-6E, SK230-6E, or SK250-6E) |
| 2️⃣ | Confirm engine is Mitsubishi 6D34/6D16/6D24 and machine is -6E (electronic) |
| 3️⃣ | Place order – we send invoice + tracking number within 24 hours |
*Shipping Details Delivery Return*
Sales Price:
The displayed price is for reference only. Please contact COGENG sales support for the exact price.
Shipping Method:
Sea, land, or air transport; the specific method is determined based on the nature of the shipment.
Estimated Delivery Time:
Based on the dispatch time from the logistics carrier; the displayed arrival time serves as the reference.
Contact information is provided at the bottom of the page.
Merchant Return Policy:
Products shipped are not eligible for return or exchange.
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