Liwei M000P156 Diesel Injector Nozzle – Precision Fuel Atomisation Component for Bosch/Denso Common Rail Systems
1. Product:M000P156
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
In common rail diesel systems, the injector nozzle is the final component that determines fuel atomisation and spray pattern, directly influencing combustion efficiency, emissions, and engine performance. The Liwei M000P156 is a precision-engineered nozzle designed as a service replacement for Bosch CRI and Denso common rail injectors, providing an aftermarket alternative that matches the flow characteristics of the OEM component at a competitive price point. This nozzle features a 7-hole design with 0.190 mm diameter orifices and a 150° spray angle, delivering a droplet SMD of approximately 22 µm – a specification that ensures the fine atomisation required for the high-swirl combustion chambers of 2.0L to 3.0L diesel engines. The defining metric of the M000P156 is its needle-to-nozzle clearance, held to 4–6 microns, ensuring minimal internal leakage while allowing free movement of the needle at rail pressures up to 1,800 bar (26,100 psi).
█ Application Coverage – Compatible Injector Platforms
The M000P156 is designed to replace nozzles in the following common rail injector families:
Bosch CRI 1.0 / 2.0 – Injectors 0445110xxx series with 7-hole × 0.190 mm nozzle geometry
Denso G2 / G3 – Injectors with 7-hole × 0.190 mm configuration
Vehicle Applications – Compatible with Volvo D5, Ford Duratorq 2.0L/2.4L, BMW M57, Mercedes OM642, and VW/Audi 2.0 TDI platforms using the above injector families
The nozzle is a direct replacement for Bosch part numbers 0445110290, 0445110291, 0445110601, and Denso 4CR01974 nozzles. It is supplied as a bare nozzle for installation into the injector body – the needle and nozzle are lapped together as a matched set during assembly.
▐ Technical Specifications – Dimensional and Flow Data
| Parameter | Specification |
|---|---|
| Nozzle Type | Inward-opening, differential pressure |
| Number of Holes | 7 |
| Orifice Diameter | 0.190 mm |
| Spray Angle | 150° |
| Needle Diameter (guide) | 4.2 mm |
| Needle-to-Nozzle Clearance | 4 – 6 µm |
| Material | High-speed steel (M42-grade) |
| Surface Coating | DLC (diamond-like carbon) on guide, 1.5 µm |
| Surface Hardness | 60 – 64 HRC |
| Surface Finish (guide) | Superfinished (Ra ≤ 0.08 µm) |
| Max. Rail Pressure Compatibility | 1,800 bar (26,100 psi) |
| Hydraulic Opening Pressure | 225 ± 10 bar |
| Static Flow (nominal) | 870 cc/min @ 100 bar |
| Seat Angle | 60° (conical) |
| Seat Diameter | 3.8 mm |
| Needle Lift | 0.23 mm |
| Matching Requirement | Lapped to specific injector body |
The 4–6 micron clearance is maintained through precision grinding of the needle guide, ensuring consistent operation and minimal leakage across the injector's service life.
◆ Construction Details – Material and Coating
→ M42 High-Speed Steel: The nozzle is manufactured from M42-grade high-speed steel containing 8% cobalt, providing hot hardness retention up to 650°C.
→ DLC Coating: The needle guide receives a 1.5 µm diamond-like carbon coating, reducing the coefficient of friction to 0.10–0.12 and extending service life in high-soot environments.
→ Superfinished Guide Surface: The guide is ground and superfinished to Ra ≤ 0.08 µm – a mirror-like finish that minimises friction.
→ Precision-Conical Seat: The 60° seat is ground to ensure a 360° sealing line, preventing fuel leakage between injections.