This Delphi 45PP4-01 sensor is used extensively in high-pressure common-rail systems that rely on Delphi’s pump or injector technology. The sensor uses a piezo-resistive membrane to measure fuel pressure, and its resistance changes with membrane deformation as rail pressure varies.
Delphi’s spec for sensors like these supports very high pressures (up to 1600–2000 bar in some versions) depending on the variant.
Accurate pressure reading enables the ECU to regulate the rail via the control valve, ensuring stable injection and good performance.
Key Features:
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Delphi part: 45PP4-01
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Measures very high rail pressure (up to ~1600–2000 bar depending on model)
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Piezo-resistive sensing element for accurate pressure measurement
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Robust sealing and design for long-lasting operation
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Suitable for Delphi common-rail systems
Why These Parts Matter for Your Business (Pal Diesel Service):
Delphi systems are common in many modern diesel engines, especially in commercial or industrial applications. By offering this sensor, Pal Diesel Service can support customers who have Delphi-based CR systems — helping you diagnose pressure-related issues precisely and offer a genuine replacement. This adds to your technical credibility and expands your business reach into different CR-system brands.
Contact & Ordering Details:
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Phone: +91 78885 29020
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Website: paldieselservice.in
COMMON RAIL PRESSURE SENSOR DELPHI
45PP4-01






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