0445010187 Diesel Pump – Bosch-Compatible CP1H3 Common Rail Pump for Diesel Equipment Engines
The 0445010187 high-pressure diesel fuel pump (Bosch compatible) is a robust radial piston pump from the CP1H3 series, designed to deliver reliable fuel pressurisation up to 1,600 bar for a wide range of diesel equipment – from light commercial vehicles and SUVs to industrial machinery. This pump is a direct fit for engines using Bosch CP1H3 common rail systems, including Hyundai, Kia, Nissan, Renault, Opel, and Fiat powertrains. Below we cover its design strengths, compatible engines, common failure indicators, installation best practices,
1. Structural Advantages of the 0445010187 CP1H3 Pump
The 0445010187 belongs to Bosch’s proven CP1H3 (Common Rail Pump 1 – Heavy‑duty 3‑plunger) family. Its engineering highlights include:
Three-plunger radial piston design – Three hardened steel plungers driven by an eccentric shaft provide smooth, high‑volume fuel delivery with minimal pressure ripple. This ensures stable rail pressure even under rapidly changing load conditions.
High‑pressure capability – Operates at up to 1,600 bar (23,200 psi), suitable for Euro 3 and Euro 4 common rail systems found in vehicles manufactured from the late 1990s through the early 2010s.
Integrated inlet metering valve (FMV/ZME) – Electronically controlled by the ECU, this valve precisely regulates fuel flow into the pumping chamber, reducing parasitic power loss and improving fuel efficiency.
Built‑in pressure relief valve – Protects the pump and downstream components (rail, injectors) from over‑pressure events by returning excess fuel to the tank.
Compact, corrosion‑resistant housing – Aluminium body resists oxidation and thermal cycling, while the compact footprint (approx. 30 × 28 × 25 cm) fits easily into crowded engine bays.
Standardised drive coupling – Slot‑type drive tang matches original CP1H3 engines, enabling bolt‑on replacement without modification.
Serviceable design – Unlike later CP4 pumps, the CP1H3 can be rebuilt using repair kits, offering lower long‑term ownership costs for fleet operators.
These features translate into consistent high‑pressure output, lower fuel consumption, and dependable operation in both on‑road and off‑road equipment.
2. Compatible Diesel Equipment Engines – For 0445010187 CP1H3
The 0445010187 pump (also listed as 0445010118) is primarily used on 2.0L – 3.0L common rail diesel engines in commercial vehicles, SUVs, vans, and light trucks. Equipment includes:
| Engine Family | Displacement | Typical Applications |
|---|
| Hyundai D4CB | 2.5L (2,497 cc) | H-1 / Starex van, Santa Fe, Porter II light truck |
| Nissan ZD30DDTi | 3.0L (2,953 cc) | Patrol GR Y61 (off‑road SUV), Cabstar F24 (light truck) |
| Renault / Nissan ZD3 / M9T | 3.0L (2,953 cc) | Master (large van), Maxity / Mascott (light truck) |
| GM / Opel / Fiat 1.9/2.0 CDTI / JTD | 1.9L – 2.0L | Astra H, Zafira B, Vectra C (passenger cars) |
