Bosch 0445110075 CRI 1.0 Injector – The Serviceable Heavy-Duty Solution for Volvo/Renault/Nissan dCi Diesel Engines
1. Product:0445110075
2. Compatible Equipment: Diesel Fuel Injection Systems
3. Manufacturer: Aftermarket OEM Replacement
4. Condition: Brand New, Fully Tested
5. Origin: ABOSEDE Diesel
6. Shipping period: 3-5 business days
7. Payment terms: T/T, Western Union, PayPal
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Product Introduction
Unlike later common rail injectors that are designed as sealed, non-serviceable units requiring full replacement when performance degrades, the Bosch 0445110075 belongs to the CRI 1.0 generation – a period when injectors were engineered with component-level repairability in mind. Its bolted nozzle retainer, replaceable control valve, and through-hardened plunger allow for individual component replacement during overhaul, reducing the cost of maintaining high-mileage engines. The injector is rated for a maximum rail pressure of 1,350 bar (19,580 psi) with a static flow of 860 cc/min at 100 bar, calibrated for the 2.5L dCi diesel engine used across multiple commercial vehicle platforms. The defining specification of the 0445110075, however, is its hydraulic opening consistency – the injector maintains its opening delay at 270 µs ± 20 µs over its service life, a stability achieved through the precise lapping of the control valve seat. In common rail systems where rail pressure is maintained by the high-pressure pump, this consistent opening delay ensures that the ECU's injection timing commands are accurately translated into hydraulic events, maintaining stable combustion characteristics across the engine's operating range – a critical attribute for commercial vehicles that accumulate high annual mileage.
█ Application Coverage – Volvo, Renault, Nissan, and the dCi Family
The 0445110075 is a service replacement across several Volvo, Renault, and Nissan platforms using the 2.5L dCi four-cylinder diesel engine:
Volvo – 2.5L D (engine code D5244T) in S60, V70, XC70, S80, XC90
Renault – 2.5L dCi (engine code G9U) in Laguna, Espace, Vel Satis, Trafic, Master
Nissan – 2.5L dCi (engine code YD25DDTi) in Primera, Pathfinder, Navara
Opel/Vauxhall – 2.5L DTI (engine code 25DT) in Omega B, Vectra B
Ford – 2.5L Duratorq (engine code 2.5TDCi) in some Transit applications
The injector features a 7-hole nozzle with 0.20 mm diameter orifices and a 145° spray angle, producing a droplet SMD of approximately 23 µm – coarser than later CRI 2.0 injectors but offering excellent resistance to coking in commercial applications with extended idle periods. The larger orifices also tolerate lower fuel quality, a consideration for the global markets where these vehicles operate. It directly replaces Bosch part numbers 0445110076, 0445110077, and Volvo OEM number 8666075, Renault number 8200195432.
▐ Technical Specifications – Electrical and Hydraulic Data
| Parameter | Specification |
|---|---|
| Maximum Rail Pressure | 1,350 bar (19,580 psi) |
| Actuator Type | Solenoid CRI 1.0 |
| Coil Resistance (20°C) | 0.95 – 1.10 Ω |
| Peak Pull-in Current | 16 A |
| Holding Current (PWM) | 5.0 – 5.5 A |
| Static Flow @ 100 bar | 860 ± 25 cc/min |
| Nozzle Holes / Diameter | 7 × 0.20 mm |
| Spray Angle | 145° |
| Needle Lift | 0.22 mm |
| Hydraulic Opening Pressure | 210 bar |
| Leak-off Rate (new, idle) | ≤ 18 ml/min |
| Max. Engine Speed | 4,800 rpm |
| Solenoid Inductance | 2.6 mH |
The 2.6 mH inductance – the highest in the CRI 1.0 family – provides the most gradual current rise of any Bosch solenoid injector. This reduces the peak current demand to 16 A, minimising electrical stress on the ECU's injector drivers in commercial vehicles where the electrical system may be subject to voltage fluctuations.
◆ Construction Details – The Component-Level Repairability
The CRI 1.0 architecture used in the 0445110075 is designed for serviceability, with individual components that can be replaced during overhaul:
→ Bolted Nozzle Retainer (35 N·m): The nozzle is retained by a threaded nut, allowing the nozzle needle and seat to be replaced without special tools. This is a significant advantage over later CRI generations with laser-welded nozzles, as it reduces the cost of injector rebuild by approximately 40%. The retainer can be removed with a standard deep socket.
→ Through-Hardened Plunger (56 HRC): The plunger is manufactured from SAE 52100 bearing steel and through-hardened to 56 HRC, offering uniform wear resistance. Unlike surface-hardened plungers, the through-hardened design allows for 6–8 microns of wear before performance is degraded, providing a longer service interval in high-mileage applications.
→ Replaceable Control Valve Seat: The ball-and-seat control valve uses a replaceable seat insert, which can be changed during overhaul. In later CRI designs, the seat is part of the injector body and cannot be replaced. This serviceability is a key advantage for fleet operators who rebuild injectors in-house.
→ Brass Heat Sink Housing: The solenoid coil is housed in a brass shell that acts as a heat sink, dissipating heat from the winding more effectively than the plastic housings used in later injectors. This thermal management extends the coil's service life in commercial vehicle applications where the engine may run for extended periods at high load.