Crankcase Pressure Sensors
Crankcase Pressure Sensors
Key Features
- Compatible with major diesel engine platforms including Cummins, Volvo, CAT
- ±0.5% FS typical accuracy ensures stable crankcase pressure measurement
- ≤2 ms response time enables fast real-time signal output
- Operating temperature range from -40°C up to +150°C
- 316L stainless steel diaphragm resists oil vapor and corrosion
- Vibration resistance up to 20 g RMS under harsh conditions
- Shock resistance rated up to 100 g half-sine pulse
- Analog 0.5–4.5 V output plus optional SENT or CAN
- 5 V supply voltage with ratiometric signal output design
- Plug-and-play installation requiring no field calibration steps
- Designed for long-term durability exceeding ten million cycles
- AEC-Q100 qualified electronics for automotive-grade reliability performance
- IP67 standard protection, IP69K optional for high-pressure washdown environment
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Crankcase Pressure Sensor Series for Cummins, Volvo, CAT & Detroit Diesel Engines
Product Overview
This crankcase pressure sensor series is engineered as a multi-platform OEM-compatible solution for heavy-duty diesel engines across leading global brands.
Instead of a single replacement part, this product family covers a wide range of OEM part numbers and engine applications, enabling fleet-wide standardization of crankcase pressure monitoring systems.
The sensors are designed to provide accurate real-time measurement of crankcase pressure (blow-by gas pressure), ensuring proper operation of the PCV system, oil mist separation efficiency, and engine emissions control compliance (EPA / Euro VI).
This series is widely used in mixed fleets including Cummins, Volvo/Mack, Caterpillar, Detroit Diesel, Paccar, and industrial diesel generator systems.
OEM Cross-Reference Coverage
Cummins Engines
Compatible OEM numbers:
- 5462277
- 4984575
- 4954400
Applications:
X15 / ISX15 / ISX12 / ISB 6.7L / ISC 8.9L
Volvo / Mack Engines
Compatible OEM numbers:
- 21634017
- 21746206
- 20905373
- 20499340
Applications:
D11 / D13 / D16 / MP7 / MP8
Caterpillar Engines
Compatible OEM numbers:
- 162-0275
- 1918303
Applications:
C13 ACERT / C15 / 3406E
Detroit Diesel
Compatible OEM numbers:
- 23528418
Applications:
Series 60 (11.1L / 12.7L / 14L)
Other Applications
- Paccar MX-13 engines
- Ford Super Duty diesel platforms
- Industrial generator sets
- Marine propulsion diesel systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Pressure Range | -10 kPa to +10 kPa (standard), up to ±50 kPa customizable |
| Accuracy | ±0.5% FS |
| Response Time | ≤2 ms |
| Output Signal | 0.5–4.5 V ratiometric (SENT / CAN optional) |
| Supply Voltage | 5 V DC ±0.5 V |
| Current Consumption | ≤5 mA |
| Operating Temperature | -40°C to +150°C |
| Storage Temperature | -55°C to +175°C |
| Protection Rating | IP67 standard / IP69K optional |
| Vibration Resistance | 30 g RMS (10–2000 Hz) |
| Shock Resistance | 100 g, 11 ms half-sine |
| Housing Material | 316L stainless steel |
| Sensing Element | Ceramic diaphragm |
| Connector Options | OEM-specific sealed connectors (M12 / Delphi / Packard) |
| Compliance | RoHS / REACH / CE / Automotive-grade electronics (AEC-Q100 IC compliant) |
Key Advantages of the Series
1. Multi-OEM Platform Compatibility
One sensor family supports multiple engine platforms, helping fleet operators reduce inventory complexity and maintenance cost.
2. Accurate Crankcase Pressure Monitoring
Provides stable measurement of blow-by gas pressure to support diagnostics of:
- Piston ring wear
- Turbocharger seal leakage
- PCV system blockage
- Excessive crankcase pressure conditions
3. OEM-Level Signal Integration
0.5–4.5 V ratiometric output ensures compatibility with existing ECU systems across multiple engine manufacturers.
Optional SENT and CAN output available for next-generation engine control systems.
4. Harsh Environment Reliability
Designed for heavy-duty applications with:
- Oil vapor exposure
- High vibration environments
- Thermal cycling from -40°C to +150°C
- High-pressure washdown (IP69K optional)
5. Fleet-Wide Standardization
Ideal for mixed-brand fleets (Cummins + Volvo + CAT + Detroit), reducing part number complexity and improving maintenance efficiency.
Applications
Heavy-Duty Truck Fleets
Supports crankcase pressure diagnostics across multiple OEM platforms in long-haul trucking operations.
Mining & Construction Equipment
Reliable operation under high vibration, dust, and continuous heavy-load conditions.
Industrial Power Generation
Used in stationary diesel generators for continuous blow-by gas monitoring and preventive maintenance.
Marine Diesel Systems
Corrosion-resistant design suitable for high-humidity and saltwater environments.
Installation Overview
This sensor series is designed for OEM-equivalent replacement and retrofit compatibility.
- Plug-and-play installation
- No ECU reprogramming required (standard applications)
- Typical installation time: 15–30 minutes depending on engine configuration
FAQ
1. Is this a single sensor or a product family?
This is a sensor series, designed to cover multiple OEM part numbers and engine platforms.
2. Can one sensor model fit all engines?
The series is platform-compatible, but specific models are matched to OEM part numbers and connector types for proper fitment.
3. Does it support Cummins, Volvo, and CAT engines simultaneously?
Yes, the product family includes variants compatible with all three major platforms.
4. Will it help with crankcase pressure-related fault codes?
It provides accurate pressure signals that support ECU diagnostics for crankcase ventilation-related fault conditions (e.g., P04DB, P0556).
5. Is calibration required after installation?
No field calibration is required in standard OEM-equivalent applications.
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
Strict Production Process of Yafeite
