0445010238 Diesel Fuel Pump – Bosch-Compatible Common Rail High-Pressure Pump for Heavy-Duty Diesel Engines
The 0445010238 common rail diesel fuel pump (Bosch compatible) is a high‑pressure radial piston pump engineered for demanding diesel engines in commercial vehicles, vans, and light trucks. This pump supplies pressurised fuel (up to 1,800 bar) to the common rail system, ensuring precise injection timing, reduced emissions, and reliable performance under heavy loads. Below we explore its structural advantages, engine and vehicle compatibility, typical failure modes, installation best practices, and why Rsolid engine parts is your trusted global supplier.
1. Structural Advantages of the 0445010238 Diesel Fuel Pump
The 0445010238 belongs to Bosch’s CP1H / CP3 family of radial piston pumps, offering several engineering benefits:
Three‑piston radial design – Three hardened steel plungers arranged radially around an eccentric cam deliver smooth, high‑pressure fuel flow with minimal pulsation, ensuring stable rail pressure from idle to full load.
Integrated inlet metering valve (ZME) – Electronically controlled by the ECU, this valve precisely regulates fuel quantity entering the pump chamber, reducing parasitic power loss and improving fuel economy.
High‑strength aluminium housing – Lightweight yet corrosion‑resistant, designed for under‑hood conditions in both on‑road and off‑highway applications.
Internal overflow valve – Protects the pump from over‑pressure events by returning excess fuel to the tank, safeguarding the rail and injectors.
Standardised mounting flange and drive coupling – Direct bolt‑on replacement for OEM pumps, matching original connection points, gear drive, and high‑pressure outlet ports.
Enhanced plunger lubrication – Built‑in fuel lubrication channels reduce wear, especially when using Ultra Low Sulfur Diesel (ULSD) which has lower natural lubricity.
These features translate into consistent high‑pressure delivery, extended pump life, and lower total cost of ownership.
2. Compatible Engine & Vehicle Models – For 0445010238
The 0445010238 high‑pressure pump is used across a range of 3.0L – 4.0L common rail diesel engines, particularly in Iveco, Fiat, and PSA commercial vehicles. Known compatible applications include:
Detailed vehicle list:
| Make | Model | Years | Engine Code(s) | Notes |
|---|
| Iveco | Daily (Gen 5, 6) | 2006–2019 | F1CE3481N, F1CE3481E, F1CE0481D | 3.0L HPI (High Pressure Injection) |
| Iveco | Eurocargo (some variants) | 2008–2016 | F4AE series | 4.0L – 4.5L common rail |
| Fiat | Ducato (X250, X290) | 2006–2019 | F1CE3481N / E | 3.0L Multijet |
| Peugeot | Boxer (3.0 HDi) | 2006–2019 | F1CE3481N | Rebadged Iveco engine |
| Citroën | Jumper (3.0 HDi) | 2006–2019 | F1CE3481N | Same as Boxer |
Important: Always verify your original pump part number – look for 0445010238, 0445010412, 0445010512, or Iveco OEM numbers such as 5802380587, 504294226. The 0445010238 is often a predecessor or alternative to 0445010512. Check the Bosch number on your existing pump before ordering.
3. Common Failure Symptoms & Installation Replacement Advice
The CP1H/CP3 pump is robust, but failures occur due to contaminated fuel, water ingress, or long‑term wear. Recognising early signs prevents injector and rail damage.
Typical failure symptoms of a failing 0445010238 pump:
Long crank time before start – Pump cannot reach minimum rail pressure (typically 200–250 bar) due to worn plungers or a faulty metering valve.
Loss of power under heavy load – Rail pressure drops when accelerating, triggering limp mode or fault codes P0087 (rail pressure too low).
Engine stalling, especially hot – Internal leakage increases with heat and low fuel viscosity, causing pressure loss after shutdown.
Fuel in engine oil – Drive shaft seal failure allows diesel to enter the timing case and then the sump – dangerous risk of engine runaway.
Abnormal noise (whining or metal rubbing) – Worn bearings or plungers create audible noise from the pump area.
P0191, P0088, P0090 fault codes – Related to rail pressure regulator performance or fuel system malfunction.
Metal debris in fuel filter – Indicates internal pump failure; entire fuel system must be flushed.
Installation & replacement best practices for 0445010238 pump:
Replace all fuel filters – Install a new high‑pressure fuel filter (genuine Iveco/Fiat/PSA) to protect the new pump.
Drain and clean the fuel tank – If the old pump failed with metal particles, flush the tank, lines, and replace the rail and injectors. Contaminated injectors will fail quickly.
Clean banjo bolt restrictors – Some engines have a small orifice in the pump return banjo bolt – ensure it is clear.
Replace drive shaft seal (if separate) – The new pump usually includes a seal. Apply a thin coat of clean diesel to the seal lip.
Torque mounting bolts precisely – Use 25 Nm for M8 bolts (typical). Refer to the engine service manual. Over‑torquing distorts the housing.
Use new high‑pressure pipe unions – Do not reuse compression fittings. New pipes or washers prevent leaks.
Prime the low‑pressure circuit – Operate the hand primer or use a vacuum pump to pull fuel through the filter and pump before starting. Never dry crank – this destroys the new pump.
Perform rail pressure adaptation – Using diagnostic software (Iveco E.A.SY., Fiat MultiECUScan, Autel, Launch), reset fuel pressure adaptation values.
Check for leaks – After starting, inspect all fuel connections for signs of leakage.
Run a return flow test – Pump return flow should be < 1 L/min at high idle. Excessive return indicates internal wear.
4. Why Choose Rsolid Engine Parts as Your Supplier?
At Rsolid engine parts, we specialise in high‑quality diesel fuel injection components:
100% test‑bench verified – Every 0445010238 pump is calibrated on a professional common rail test bench to ensure precise flow and pressure regulation (±2% tolerance).
Bosch‑compatible, OE fitment – Direct replacement for Iveco/Fiat OEM pumps; matches all mounting points, drive configuration, and hydraulic connections.
New build, not remanufactured – All units are newly manufactured to Bosch specifications, not reconditioned.
Competitive wholesale pricing – Ideal for fleet owners, repair workshops, and parts distributors.
Fast global shipping – Stock available from warehouses in Asia, Europe, and North America.
Expert technical support – Our team helps with diagnostic troubleshooting, torque specifications, and installation questions.
12‑month warranty – Against manufacturing defects and premature wear.
📧 Contact us for a quote or technical assistance:
✉️ Email: amy@rinjector.com
🌐 Website: www.rinjector.com
