Liwei M0019P140 Diesel Injector Nozzle – The Extreme Narrow-Angle Solution for High-Swirl, Deep-Bowl Combustion Chambers
1. Product:M0019P140
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 engines with exceptionally high swirl ratios – typically above 2.8 – the tangential air motion creates a powerful rotational flow that can deflect fuel sprays from their intended trajectory, causing wall wetting, incomplete combustion, and increased particulate emissions. The Liwei M0019P140 is a precision-ground nozzle engineered with an extreme 140° spray angle – the narrowest angle in the Liwei range – specifically calibrated for engines with aggressive swirl ratios and deep-bowl piston geometries that demand a highly directed fuel plume. This narrow spray angle resists swirl-induced deflection, delivering fuel precisely to the combustion zone with minimal dispersion, improving air utilisation and reducing soot formation. Featuring a 7-hole configuration with 0.185 mm diameter orifices, the M0019P140 delivers a static flow of 820 cc/min at 100 bar, a specification that positions it as a high-penetration, swirl-resistant component for 1.9L to 2.2L diesel engines used in certain European and Asian platforms where high-swirl combustion is the dominant design philosophy.
█ Application Coverage – High-Swirl Diesel Platforms
The M0019P140 is designed to replace nozzles in the following common rail injector families:
Bosch CRI 2.0 – Injectors with 7-hole × 0.185 mm nozzle geometry in high-swirl applications, including certain 0445110265, 0445110480 variants
Denso G2 / G3 – Injectors with 7-hole × 0.185 mm configuration used in Japanese high-swirl diesel platforms
Vehicle Applications – Toyota 2.0 D-4D (high-swirl variants), Mitsubishi 2.0 DI-D, Mazda 2.0 MZR-CD, certain Peugeot/Citroën 2.0 HDi with deep-bowl pistons, and early European diesel platforms with aggressive swirl ratios
The nozzle is a direct replacement for Bosch part numbers 0445110265, 0445110480, and Denso nozzles with the 7 × 0.185 mm configuration. It is supplied as a bare nozzle – the needle and nozzle must be lapped together during assembly to achieve the 4–6 micron clearance.
▐ Technical Specifications – Dimensional and Flow Data
| Parameter | Specification |
|---|---|
| Nozzle Type | Inward-opening, differential pressure |
| Number of Holes | 7 |
| Orifice Diameter | 0.185 mm |
| Spray Angle | 140° |
| Needle Diameter (guide) | 4.1 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 | 220 ± 10 bar |
| Static Flow @ 100 bar | 820 cc/min |
| Spray Penetration (at 1,600 bar) | 52 mm (vs. 44 mm for 150° nozzles) |
| Seat Angle | 60° (conical) |
| Seat Diameter | 3.7 mm |
| Needle Lift | 0.21 mm |
| Matching Requirement | Lapped to specific injector body |
◆ Construction Details – High-Swirl Optimisation
→ 140° Extreme Narrow Spray Angle: The narrowest angle in the Liwei range, providing maximum resistance to swirl-induced deflection and the highest penetration of any Liwei nozzle.
→ M42 High-Speed Steel: Manufactured from cobalt-containing steel, providing hot hardness up to 650°C.
→ DLC Coating: The needle guide receives a 1.5 µm diamond-like carbon coating, reducing friction and extending service life.
→ Superfinished Guide Surface: The guide is superfinished to Ra ≤ 0.08 µm, ensuring smooth needle movement.