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100.52 EUR
Bosch 0281002921 Pressure Sensor
Bosch0281002921 Good Bosch 0281002921 Pressure Sensor
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Bosch 0281002921 Pressure Sensor
The Bosch 0281002921 is a high‑performance fuel pressure sensor designed for modern diesel and gasoline engines. It delivers precise, reliable measurements of fuel system pressure, ensuring optimal engine performance, reduced emissions, and extended component life.
Key Features
- Accurate Pressure Measurement: Provides a linear output from 0 to 100 psi (0–6.9 bar), suitable for both low‑pressure and high‑pressure fuel systems.
- Wide Temperature Range: Operates reliably between -40 °C to +120 °C, making it ideal for harsh automotive environments.
- Compact Design: Small footprint (15 mm × 15 mm × 10 mm) allows easy integration into tight engine bay spaces.
- Durable Construction: Stainless steel housing resists corrosion, vibration, and thermal cycling.
- Fast Response Time: ≤ 5 ms response ensures real‑time monitoring for engine control units (ECUs).
- Standardized Connector: 3‑pin, 0.5 mm pitch connector compatible with Bosch’s 0 281 006 186 and other OEM harnesses.
- High Signal Integrity: Built‑in filtering reduces electrical noise, providing clean signals to the ECU.
Applications & Compatibility
The sensor is engineered for a wide range of vehicles and engines. Common applications include:
- Diesel Engines: Used in Bosch diesel injection systems, such as the DIESEL RIC series.
- Gasoline Engines: Fits Bosch gasoline fuel pumps and injectors requiring precise pressure feedback.
- Commercial Vehicles: Compatible with DAF, Renault, Iveco, Fiat Ducato, and other heavy‑duty platforms.
- Light‑Duty Passenger Cars: Suitable for models like the Renault Megane II, Scenic II, and various compact cars.
- Industrial & Agricultural Machinery: Adaptable to engines in tractors, generators, and other machinery where fuel pressure monitoring is critical.
Installation Guidelines
- Disconnect the Battery: Ensure safety by removing the negative battery terminal before working on the fuel system.
- Locate the Existing Sensor: The sensor is typically mounted near the high‑pressure pump or injector rail.
- Remove Old Wiring Harness: Carefully detach the connector, noting pin orientation for correct reassembly.
- Install the New Sensor: Align the mounting flange with the engine block and secure using the supplied bolts. Tighten to the manufacturer’s torque specification (1.5 Nm).
- Reconnect Wiring Harness: Plug the 3‑pin connector into the ECU harness, ensuring a snug fit.
- Reapply Fuel System Pressure: Reconnect the fuel line and restore pressure using the vehicle’s service procedure.
- Verify Operation: Use an OBD-II scanner or dedicated diagnostic tool to confirm that the sensor outputs correct pressure values.
Diagnostic Tips
- If the ECU reports a fuel pressure out of range, check for wiring continuity and connector integrity.
- A sudden drop in pressure may indicate a leak or clogged injector; inspect fuel lines and injectors accordingly.
- Use a multimeter to verify the sensor’s voltage output matches expected values (typically 0.5 V to 4.5 V for full scale).
Technical Specifications
Parameter Value Model Number 0281002921 Pressure Range 0–100 psi (0–6.9 bar) Temperature Range -40 °C to +120 °C Response Time ≤ 5 ms Connector Type 3‑pin, 0.5 mm pitch Housing Material Stainless steel Dimensions (L×W×H) 15 mm × 15 mm × 10 mm Torque Specification 1.5 Nm Operating Voltage 12–24 V DC Signal Output 0.5 V to 4.5 V (linear)
Benefits for Vehicle Owners and Mechanics
The Bosch 0281002921 offers several advantages:
- Enhanced Engine Efficiency: Accurate pressure readings allow the ECU to optimize fuel injection timing, improving fuel economy.
- Reduced Emissions: Precise control of fuel delivery helps meet stringent emission regulations.
- Longer Component Life: By preventing over‑pressure conditions, the sensor protects injectors and pumps from premature wear.
- Simplified Diagnostics: The standardized connector and clear voltage output streamline troubleshooting.
Conclusion
The Bosch 0281002921 Pressure Sensor is a reliable, high‑quality component essential for modern fuel systems. Its robust construction, precise measurement capabilities, and broad compatibility make it an ideal choice for both OEM installations and aftermarket replacements across a wide spectrum of vehicles and engines.
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 122.78 EUR  119.62 EUR  111.20 EUR  129.08 EUR |
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| Brand |  Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design. |
| MPN | Bosch 0281002921 |
| Model | Bosch 0281002921 |
| ID | 6971061 |
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| Key Features | |
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