BLLA 143 P 2383+

BOSCH INJECTOR NOZZLE: DLLA143P2383 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA143P2383
Alternate / Cross Reference: 0 445 120 353
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector Reference: 0 445 120 353
- OEM / Vehicle Manufacturer: MAN, DAF, Euro 5 / Euro 6 commercial diesel engines
- Typical Applications (with HP / kW):
• MAN TGA / TGX 10–13 L – ~360–480 HP / 265–355 kW
• DAF CF / XF 10–13 L – ~360–480 HP / 265–355 kW

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: Heavy-duty trucks and commercial vehicles using BOSCH 0 445 120 353 injectors.
Engine Type: Inline-6, 10–13 L Common Rail Diesel, Euro 5 / Euro 6 compliant.
Injector Technology: BOSCH Common Rail Solenoid Injector.
Nozzle Type: DLLA143P2383 — high-pressure multi-hole nozzle for precise fuel atomization.
Technical Characteristics:
- Material: High-strength tool steel, heat-treated, anti-wear coating
- Number of Holes: 7–8 (engine variant dependent)
- Hole Diameter: ~0.143 mm
- Spray Angle: 143°
- Operating Pressure: 1600–2000 bar
- Fuel Compatibility: EN 590 Diesel / B7 Biodiesel blends
- Performance Features: Optimized atomization, efficient combustion, long service life under heavy-duty operation

III. Critical Technician Notes (MUST-DO)

1. Clean Installation: Thoroughly clean the nozzle (ultrasonic cleaning recommended) before installation.
2. Sealing Components: Always replace O-rings, copper washers, and seals; do not reuse old parts.
3. Injector Mounting: Follow OEM torque and alignment specifications.
4. Post-Installation Testing: Perform leak-back or test-bench spray tests to ensure proper spray pattern and no leaks.
5. Calibration / Coding: Use BOSCH or OEM diagnostic tools if injector coding is required.
6. Fuel Quality Notes: Use clean, high-quality diesel; replace fuel filters during service.
7. Storage & Handling: Store in a clean, dry environment; avoid mechanical damage to the nozzle tip.
8. Common Fault Symptoms: Hard start, black smoke, rough idle, loss of power, excessive fuel return flow.