BLLA 146 P 1339+

BOSCH INJECTOR NOZZLE: DLLA146P1339 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA146P1339
BOSCH MEC / Catalog Number: 433171831
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector References: 0 445 120 030 / 0 445 120 218
- OEM / Vehicle Manufacturer: MAN Trucks / Buses – D0836 / D2066 engines
- Typical Applications (with HP / kW):
• MAN TGL / TGM series (D0836 / D2066 engines) – 170–340 HP / 125–250 kW
• MAN Lion’s City / Lion’s Coach buses – 250–360 HP / 184–265 kW

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: Medium and heavy-duty MAN trucks and buses with D0836 / D2066 engines.
Engine Type: Inline-6 / 6–12 L Diesel engines, Euro 5 / Euro 6 compliant.
Injector Technology: BOSCH Common Rail Solenoid Injector.
Nozzle Type: DLLA146P1339 — precision multi-hole high-pressure nozzle.
Technical Characteristics:
- Material: High-strength, heat-treated tool steel
- Fuel Compatibility: EN 590 Diesel / B7 Biodiesel blends
- Performance Features: Optimized for high-pressure injection, stable atomization, long service life, low NOx emissions.

III. Critical Technician Notes (MUST-DO)

1. Clean Installation: Clean the nozzle thoroughly (ultrasonic cleaning recommended) before installation.
2. Sealing Components: Replace all O-rings and copper washers; ensure proper seating.
3. Injector Mounting: Follow OEM torque and alignment specifications.
4. Post-Installation Testing: Perform leak-back test or test-bench spray pattern verification.
5. Calibration / Coding: Use MAN or Bosch diagnostic tools if required.
6. Fuel Quality Notes: Use clean, high-quality diesel; replace fuel filters during injector service.
7. Storage & Handling: Keep nozzles in a dry, dust-free environment; protect the tip from mechanical damage.
8. Common Fault Symptoms: Reduced power, black smoke, rough idle, hard starting, or excessive fuel return.