DLLA 149 S 394

BOSCH / BOSIO INJECTOR NOZZLE: DLLA149S394 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA149S394
BOSCH MEC / Catalog Number: 0 433 271 162
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector References: Typically used with BOSCH 0 445 series injectors for light and medium-duty diesel engines.
- OEM / Vehicle Manufacturer: Varies depending on engine, commonly found in small to medium diesel vehicles and machinery.
- Typical OEM Numbers: May cross-reference to various engine-specific numbers depending on manufacturer.

II. Vehicle Application & Technical Data

Primary Vehicle Application: Light commercial vehicles, passenger cars, and industrial diesel engines.
Engine Types: 1.4L – 2.0L diesel engines (depending on manufacturer and application).
Injector Technology: BOSCH Solenoid Common Rail Injector.
Nozzle Type: DLLA149S394 — precision multi-hole nozzle for optimized fuel atomization and combustion efficiency.
Material: High-strength tool steel, heat-treated, corrosion-resistant coating.
Fuel Compatibility: EN 590 Diesel / Biodiesel blends up to B7.

III. Critical Technician Notes (MUST-DO)

1. Injector Calibration: After nozzle replacement or service, re-enter the injector IMA/ISA code into the ECU using compatible diagnostic tools.
2. Sealing Components: Always replace copper washers and O-rings to ensure proper sealing.
3. Injector Bolts: Clamp bolts are single-use stretch bolts — replace with each installation.
4. Clean Installation: Maintain absolute cleanliness — contamination can damage the injector or nozzle.
5. System Verification: Perform pilot injection calibration, leak-back test, and engine performance checks after installation.